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From aba...@apache.org
Subject [38/51] [partial] incubator-geode git commit: GEODE-917: rename gemfire subprojects to geode
Date Wed, 17 Feb 2016 18:23:42 GMT
http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ClientServerRegionFactoryDelegate.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ClientServerRegionFactoryDelegate.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ClientServerRegionFactoryDelegate.java
new file mode 100644
index 0000000..980e6ab
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ClientServerRegionFactoryDelegate.java
@@ -0,0 +1,208 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.StringTokenizer;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.GemFireCache;
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.cache.RegionShortcut;
+import com.gemstone.gemfire.cache.client.ClientCache;
+import com.gemstone.gemfire.cache.client.ClientCacheFactory;
+import com.gemstone.gemfire.cache.client.ClientRegionFactory;
+import com.gemstone.gemfire.cache.client.ClientRegionShortcut;
+import com.gemstone.gemfire.cache.execute.FunctionService;
+import com.gemstone.gemfire.modules.util.BootstrappingFunction;
+import com.gemstone.gemfire.modules.util.CreateRegionFunction;
+import com.gemstone.gemfire.modules.util.RegionConfiguration;
+
+public class ClientServerRegionFactoryDelegate extends RegionFactoryDelegate {
+
+  private static final String DEFAULT_SERVER_REGION_TYPE = RegionShortcut.PARTITION.name();
+
+  private static final String DEFAULT_CLIENT_REGION_TYPE = ClientRegionShortcut.PROXY.name();
+
+  private ClientCache clientCache;
+  
+  public ClientServerRegionFactoryDelegate(Properties gemfireProperties,
+      Properties regionProperties) {
+    super(gemfireProperties, regionProperties);
+  }
+
+  @Override
+  public GemFireCache startCache() {
+    log.info("Creating a GemFire client cache");
+    String locatorsString = (String)gemfireProperties.remove("locators");
+    checkExistingCache();
+    ClientCacheFactory ccf = new ClientCacheFactory(gemfireProperties).setPoolSubscriptionEnabled(true);
+    List<LocatorHolder> locators = getLocatorsMap(locatorsString);
+    for (LocatorHolder locHolder : locators) {
+      log.debug("adding pool locator with host {} port {}", locHolder.host, locHolder.port);
+      ccf.addPoolLocator(locHolder.host, locHolder.port);
+    }
+    this.clientCache = ccf.create();
+    
+    log.debug("GemFire client cache creation completed");
+    // bootstrap the servers
+    FunctionService.onServers(this.clientCache).execute(new BootstrappingFunction()).getResult();
+    FunctionService.registerFunction(new CreateRegionFunction(this.clientCache));
+    return this.clientCache;
+  }
+
+  private List<LocatorHolder> getLocatorsMap(String locatorsString) {
+    List<LocatorHolder> retval = new ArrayList<LocatorHolder>();
+    if (locatorsString == null || locatorsString.isEmpty()) {
+      return retval;
+    }
+    StringTokenizer st = new StringTokenizer(locatorsString, ",");
+    while (st.hasMoreTokens()) {
+      String locator = st.nextToken();
+      int portIndex = locator.indexOf('[');
+      if (portIndex < 1) {
+        portIndex = locator.lastIndexOf(':');
+      }
+      // starting in 5.1.0.4 we allow '@' as the bind-addr separator
+      // to let people use IPv6 numeric addresses (which contain colons)
+      int bindAddrIdx = locator.lastIndexOf('@', portIndex - 1);
+      
+      if (bindAddrIdx < 0) {
+        bindAddrIdx = locator.lastIndexOf(':', portIndex - 1);
+      }
+
+      String host = locator.substring(0,
+          bindAddrIdx > -1 ? bindAddrIdx : portIndex);
+
+      if (host.indexOf(':') >= 0) {
+        bindAddrIdx = locator.lastIndexOf('@');
+        host = locator.substring(0, bindAddrIdx > -1 ? bindAddrIdx : portIndex);
+      }
+      int lastIndex = locator.lastIndexOf(']');
+      if (lastIndex == -1) {
+        if (locator.indexOf('[') >= 0) {
+          throw new IllegalArgumentException("Invalid locator");
+        } else {
+          // Using host:port syntax
+          lastIndex = locator.length();
+        }
+      }
+      String port = locator.substring(portIndex + 1, lastIndex);
+      int portVal = 0;
+      try {
+        portVal = Integer.parseInt(port);
+        if (portVal < 1 || portVal > 65535) {
+          throw new IllegalArgumentException("port should be grater than zero and less than 65536");
+        }
+      } catch (NumberFormatException ex) {
+        throw new IllegalArgumentException("Invalid Locator");
+      }
+      retval.add(new LocatorHolder(host, portVal));
+    }
+    return retval;
+  }
+
+  @Override
+  public Region<Object, EntityWrapper> createRegion(String regionName) {
+    // first create the region on the server
+    String serverRegionType = getServerRegionType(regionName);
+    RegionConfiguration regionConfig = new RegionConfiguration();
+    regionConfig.setRegionName(regionName);
+    regionConfig.setRegionAttributesId(serverRegionType);
+    regionConfig.setCacheWriterName(EntityRegionWriter.class.getCanonicalName());
+    FunctionService.onServer(this.clientCache).withArgs(regionConfig)
+        .execute(CreateRegionFunction.ID).getResult();
+    // now create region on the client
+    Region<Object, EntityWrapper> r = this.clientCache.getRegion(regionName);
+    if (r != null) {
+      return r;
+    }
+    String clientRegionType = getClientRegionType(regionName);
+    ClientRegionFactory<Object, EntityWrapper> rf = this.clientCache
+        .createClientRegionFactory(ClientRegionShortcut
+            .valueOf(clientRegionType));
+    r = rf.create(regionName);
+    return r;
+  }
+
+  private String getClientRegionType(String regionName) {
+    String rType = getOverridenClientRegionType(regionName);
+    if (rType != null) {
+      return rType.toUpperCase();
+    }
+    rType = regionProperties.getProperty("gemfire.default-client-region-attributes-id");
+    if (rType == null) {
+      rType = DEFAULT_CLIENT_REGION_TYPE;
+    }
+    return rType.toUpperCase();
+  }
+
+  private String getServerRegionType(String regionName) {
+    String rType = getOverridenServerRegionType(regionName);
+    if (rType != null) {
+      return rType.toUpperCase();
+    }
+    rType = regionProperties.getProperty("gemfire.default-region-attributes-id");
+    if (rType == null) {
+      rType = DEFAULT_SERVER_REGION_TYPE;
+    }
+    return rType.toUpperCase();
+  }
+
+  private String getOverridenServerRegionType(String regionName) {
+    String rType = null;
+    Iterator<Object> it = regionProperties.keySet().iterator();
+    while (it.hasNext()) {
+      String current = (String)it.next();
+      if (current.contains(regionName) && !current.contains("client")) {
+        rType = regionProperties.getProperty(current);
+        break;
+      }
+    }
+    return rType;
+  }
+
+  private String getOverridenClientRegionType(String regionName) {
+    String rType = null;
+    Iterator<Object> it = regionProperties.keySet().iterator();
+    while (it.hasNext()) {
+      String current = (String)it.next();
+      if (current.contains(regionName) && current.contains("client")) {
+        rType = regionProperties.getProperty(current);
+        break;
+      }
+    }
+    return rType;
+  }
+  
+  private static class LocatorHolder {
+    private String host;
+    private int port;
+    private LocatorHolder(String host, int port) {
+      this.host = host;
+      this.port = port;
+    }
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/CollectionAccess.java
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diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/CollectionAccess.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/CollectionAccess.java
new file mode 100644
index 0000000..f1898d8
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/CollectionAccess.java
@@ -0,0 +1,224 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.io.Serializable;
+import java.lang.reflect.Field;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.CollectionRegion;
+import org.hibernate.cache.access.CollectionRegionAccessStrategy;
+import org.hibernate.cache.access.SoftLock;
+import org.hibernate.cache.entry.CollectionCacheEntry;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.CacheWriterException;
+import com.gemstone.gemfire.cache.EntryExistsException;
+import com.gemstone.gemfire.cache.EntryNotFoundException;
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.cache.client.ServerOperationException;
+
+public class CollectionAccess implements
+    CollectionRegionAccessStrategy {
+
+  private final GemFireCollectionRegion region;
+  
+  private Logger log = LoggerFactory.getLogger(getClass());
+  
+  /**
+   * if we know the entity whose ids are stored in this
+   * collection, we can prefetch those entities using
+   * getAll. This field stores that child entity name.
+   */
+  private String childEntityName;
+  
+  public CollectionAccess(GemFireCollectionRegion region) {
+    this.region = region;
+    String regionName = this.region.getGemFireRegion().getName().trim();
+    regionName = regionName.replace("\\/", "");
+    int lastPeriod = regionName.lastIndexOf('.');
+    if (lastPeriod < 0) {
+      log.info("Eager prefetching disabled for region: {}", this.region.getName());
+      return;
+    }
+    String entityName = regionName.substring(0, lastPeriod);
+    String collectionFieldName = regionName.substring(lastPeriod+1);
+    log.debug("entity name: {}, collectionFieldName: {}", entityName, collectionFieldName);
+    try {
+      Class parentClass = Class.forName(entityName);
+      Field[] fields = parentClass.getDeclaredFields();
+      for (Field field : fields) {
+        log.debug("genericType: {}", field.getGenericType());
+        if (field.getName().equals(collectionFieldName)) {
+          String genericString = field.toGenericString();
+          log.debug("genericType: for required field name: {}", field.toGenericString());
+          int startDependentEntityIndex = genericString.indexOf("<");
+          if (startDependentEntityIndex != -1 &&
+              genericString.indexOf("<", startDependentEntityIndex+1) == -1) {
+            int childDependentEntityIndex = genericString.indexOf(">");
+            this.childEntityName = genericString.substring(startDependentEntityIndex+1, childDependentEntityIndex);
+            log.debug("For Collection {} using child entity: {}", this.region.getGemFireRegion().getName(), this.childEntityName);
+          }
+        }
+      }
+    }
+    catch (ClassNotFoundException e) {
+      //ok to ignore, we will not use pre-fetching
+    }
+    if (this.childEntityName == null) {
+      log.info("Eager prefetching disabled for region: {}", this.region.getName());
+    }
+  }
+  
+  @Override
+  public CollectionRegion getRegion() {
+    return this.region;
+  }
+
+  @Override
+  public Object get(Object key, long txTimestamp) throws CacheException {
+    EntityWrapper wrapper = this.region.getGemFireRegion().get(key);
+    if (wrapper == null) {
+      this.region.getStats().incCacheMiss();
+      log.debug("Cache miss for {} ts: {}",key, txTimestamp);
+      return null;
+    } else {
+      this.region.getStats().incCacheHit();
+      log.debug("cache hit {} count: {} ", key, this.region.getStats().getCacheHits());
+      // do pre-fetching
+      if (isPrefetchPossible()) {
+        log.debug("for key: {} prefetching entries: {}", key, wrapper.getEntity());
+        prefetchKeys((CollectionCacheEntry)wrapper.getEntity());
+      }
+    }
+    return wrapper.getEntity();
+  }
+
+  private void prefetchKeys(CollectionCacheEntry entry) {
+    StringBuilder builder = new StringBuilder(this.childEntityName+"#");
+    Serializable[] childEntityKeys = entry.getState();
+    Set<String> getAllSet = new HashSet<String>();
+    for (Serializable id : childEntityKeys) {
+      String key = builder.append(id).toString();
+      log.debug("adding key {} to getAll set", key);
+      getAllSet.add(key);
+    }
+    GemFireEntityRegion childRegion = this.region.regionFactory.getEntityRegion(this.childEntityName);
+    log.debug("prefetching {} keys", getAllSet.size());
+    if (!getAllSet.isEmpty() && childRegion != null) {
+      childRegion.getAll(getAllSet);
+    }
+  }
+
+  private boolean isPrefetchPossible() {
+    return this.childEntityName != null;
+  }
+
+  private void printRegionContents(Region<Object, EntityWrapper> r) {
+    log.debug("printing contents of {} ",r);
+    for (Object k : r.keySet()) {
+      log.debug("key {} value {} ",k,r.get(k));
+    }
+  }
+  
+  @Override
+  public boolean putFromLoad(Object key, Object value, long txTimestamp,
+      Object version) throws CacheException {
+    return putFromLoad(key, value, txTimestamp, version, true);
+  }
+
+  @Override
+  public boolean putFromLoad(Object key, Object value, long txTimestamp,
+      Object version, boolean minimalPutOverride) throws CacheException {
+    EntityWrapper wrapper = new EntityWrapper(value, 1L);
+    log.debug("putting a new collection entry from load {} value: {}",key, wrapper);
+    boolean remove = false;
+    try {
+      this.region.getGemFireRegion().create(key, wrapper);
+    } catch (EntryExistsException ee) {
+      log.debug("key {} exists in the cache already, destroying", key);
+      remove = true;
+    } catch (CacheWriterException writerEx) {
+      this.region.getStats().incHibernateDestroyJobsScheduled();
+      log.debug("caught a CacheWriterException {} ",writerEx.getMessage());
+      remove = true;
+    } catch (ServerOperationException serverEx) {
+      if (serverEx.getCause() instanceof CacheWriterException) {
+        this.region.getStats().incHibernateDestroyJobsScheduled();
+        log.debug("caught a ServerOperationException caused by CacheWriterException {} ",serverEx.getMessage());
+      } else {
+        throw serverEx;
+      }
+      remove = true;
+    }
+    if (remove) {
+      this.region.getGemFireRegion().remove(key);
+      return false;
+    }
+    return true;
+  }
+
+  @Override
+  public SoftLock lockItem(Object key, Object version) throws CacheException {
+    // there are no updates to the collectionCache,
+    // so no need to lock/version
+    return null;
+  }
+
+  @Override
+  public SoftLock lockRegion() throws CacheException {
+    return null;
+  }
+
+  @Override
+  public void unlockItem(Object key, SoftLock lock) throws CacheException {
+  }
+
+  @Override
+  public void unlockRegion(SoftLock lock) throws CacheException {
+  }
+
+  @Override
+  public void remove(Object key) throws CacheException {
+    log.debug("removing key {}",key);
+    this.region.getGemFireRegion().remove(key);
+  }
+
+  @Override
+  public void removeAll() throws CacheException {
+    log.debug("removing all keys");
+    this.region.getGemFireRegion().clear();
+  }
+
+  @Override
+  public void evict(Object key) throws CacheException {
+    // TODO we should implement a method on Region to evict
+    // a particular entry, destroying is inefficient
+    log.debug("removing key {}", key);
+    this.region.getGemFireRegion().remove(key);
+  }
+
+  @Override
+  public void evictAll() throws CacheException {
+    log.debug("removing all keys");
+    this.region.getGemFireRegion().clear();
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityRegionWriter.java
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diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityRegionWriter.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityRegionWriter.java
new file mode 100644
index 0000000..5a4e5e1
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityRegionWriter.java
@@ -0,0 +1,87 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+
+import java.util.Properties;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.CacheWriterException;
+import com.gemstone.gemfire.cache.Declarable;
+import com.gemstone.gemfire.cache.EntryEvent;
+import com.gemstone.gemfire.cache.util.CacheWriterAdapter;
+
+public class EntityRegionWriter extends CacheWriterAdapter implements Declarable {
+  
+  private Logger log = LoggerFactory.getLogger(getClass());
+  
+//  @Override
+//  public void beforeCreate(EntryEvent event) {
+//    event.getRegion().getCache().getLogger().info("GFE:Writer invoked for beforeCreate:"+event);
+//      final Object key = event.getKey();
+//      EntityWrapper val = (EntityWrapper)event.getNewValue();
+//      EntityWrapper oldVal = (EntityWrapper)event.getOldValue();
+//      log.debug("beforeCreate: key:"+key+" val:"+val.getEntity()+" ver:"+val.getVersion()+" region:"+event.getRegion().getName()+" oldVal:"+oldVal+" this:"+System.identityHashCode(this));
+//  }
+  
+  @Override
+  public void beforeUpdate(EntryEvent event) {
+    log.debug("Writer invoked for beforeUpdate:{}",event);
+    final Object key = event.getKey();
+    EntityWrapper val = (EntityWrapper)event.getNewValue();
+    if (val.getVersion() < 0) {
+      // no need for version check for NonStrictReadWrite
+      // this is needed because CacheEntry does not implement equals
+      return;
+    }
+    EntityWrapper oldVal = (EntityWrapper)event.getOldValue();
+    // if same entity was loaded from two different VMs,
+    // i.e. version same and entity equal then no need to destroy
+    //
+    if (oldVal.getVersion() == val.getVersion()) {
+      if (val.getEntity().equals(oldVal.getEntity())) {
+        // since CacheEntry does not override equals
+        // this check is probably of no use
+        return;
+      }
+    } else if (oldVal.getVersion() < val.getVersion()) {
+      return;
+    }
+    log.debug("For key {} old version was {} new version was {}", new Object[] {key, oldVal.getVersion(), val.getVersion()});
+    throw new CacheWriterException("key "+key+" had a newer version");
+  }
+  
+  @Override
+  public boolean equals(Object obj) {
+    // This method is only implemented so that RegionCreator.validateRegion works properly.
+    // The CacheWriter comparison fails because two of these instances are not equal.
+    if (this == obj) {
+      return true;
+    }
+
+    if (obj == null || !(obj instanceof EntityRegionWriter)) {
+      return false;
+    }
+    return true;
+  }
+
+  @Override
+  public void init(Properties arg0) {
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersion.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersion.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersion.java
new file mode 100644
index 0000000..abfb675
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersion.java
@@ -0,0 +1,28 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import org.hibernate.cache.access.SoftLock;
+
+/**
+ * 
+ * @author sbawaska
+ */
+public interface EntityVersion extends SoftLock {
+
+  public Long getVersion();
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersionImpl.java
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diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersionImpl.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersionImpl.java
new file mode 100644
index 0000000..ad160e4
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityVersionImpl.java
@@ -0,0 +1,51 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+/**
+ * 
+ * @author sbawaska
+ */
+public class EntityVersionImpl implements EntityVersion {
+
+  private final Long version;
+
+  public EntityVersionImpl(Long version) {
+    this.version = version;
+  }
+
+  @Override
+  public Long getVersion() {
+    return this.version;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof EntityVersionImpl) {
+      EntityVersionImpl other = (EntityVersionImpl)obj;
+      if (this.version.equals(other.version)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    return this.version.hashCode();
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityWrapper.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityWrapper.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityWrapper.java
new file mode 100644
index 0000000..ab92dea
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/EntityWrapper.java
@@ -0,0 +1,89 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+
+import com.gemstone.gemfire.DataSerializable;
+import com.gemstone.gemfire.DataSerializer;
+
+public class EntityWrapper implements DataSerializable {
+
+  private static final long serialVersionUID = 8616754027252339041L;
+
+  private Object entity;
+
+  private long version;
+
+  public EntityWrapper(Object entity, long version) {
+    this.entity = entity;
+    this.version = version;
+  }
+
+  /**
+   * for {@link DataSerializer}
+   */
+  public EntityWrapper() {
+  }
+  
+  public long getVersion() {
+    return version;
+  }
+
+  public Object getEntity() {
+    return entity;
+  }
+
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof EntityWrapper) {
+      EntityWrapper other = (EntityWrapper)obj;
+      if (this.version == other.version) {
+        //CacheEntry does not override equals, hence cannot be used in this comparison
+        return true;
+      }
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    return Long.valueOf(this.version).hashCode();
+  }
+
+  @Override
+  public String toString() {
+    return new StringBuilder()
+        .append("EntityWrapper@" + System.identityHashCode(this))
+        .append(" Entity:" + this.entity).append(" version:" + this.version)
+        .toString();
+  }
+
+  @Override
+  public void toData(DataOutput out) throws IOException {
+    out.writeLong(this.version);
+    DataSerializer.writeObject(this.entity, out);
+  }
+
+  @Override
+  public void fromData(DataInput in) throws IOException, ClassNotFoundException {
+    this.version = in.readLong();
+    this.entity = DataSerializer.readObject(in);
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireBaseRegion.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireBaseRegion.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireBaseRegion.java
new file mode 100644
index 0000000..9e77a98
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireBaseRegion.java
@@ -0,0 +1,166 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.ExecutorService;
+
+import org.hibernate.cache.CacheDataDescription;
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.Region;
+import org.hibernate.cache.Timestamper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.distributed.DistributedSystem;
+import com.gemstone.gemfire.internal.cache.LocalRegion;
+import com.gemstone.gemfire.modules.hibernate.GemFireRegionFactory;
+import com.gemstone.gemfire.modules.util.ModuleStatistics;
+
+public class GemFireBaseRegion implements Region {
+
+  /**
+   * the backing region
+   */
+  protected final com.gemstone.gemfire.cache.Region<Object, EntityWrapper> region;
+
+  /**
+   * to determine if the operation should be forwarded to server
+   */
+  protected final boolean isClientRegion;
+
+  protected final CacheDataDescription metadata;
+
+  private final Logger log = LoggerFactory.getLogger(getClass());
+
+  protected final GemFireRegionFactory regionFactory;
+  
+  protected final ModuleStatistics stats;
+  
+  public GemFireBaseRegion(com.gemstone.gemfire.cache.Region<Object, EntityWrapper> region,
+      boolean isClient, CacheDataDescription metadata, GemFireRegionFactory regionFactory) {
+    this.region = region;
+    this.isClientRegion = isClient;
+    this.metadata = metadata;
+    this.regionFactory = regionFactory;
+    DistributedSystem system = ((LocalRegion)region).getSystem();
+    this.stats = ModuleStatistics.getInstance(system);
+
+  }
+
+  public com.gemstone.gemfire.cache.Region<Object, EntityWrapper> getGemFireRegion() {
+    return this.region;
+  }
+
+  public ModuleStatistics getStats() {
+    return this.stats;
+  }
+  
+  public ExecutorService getExecutorService() {
+    return this.regionFactory.getExecutorService();
+  }
+
+  @Override
+  public String getName() {
+    return this.region.getName();
+  }
+
+  @Override
+  public void destroy() throws CacheException {
+    if (!this.region.isDestroyed()) {
+      this.region.localDestroyRegion();
+    }
+  }
+
+  /*
+   * I did not see any useful callers from hibernate-core
+   */
+  @Override
+  public boolean contains(Object key) {
+    log.debug("contains key called for :" + key);
+    if (isClientRegion) {
+      // TODO should this be done?
+      return this.region.containsKeyOnServer(key);
+    }
+    return this.region.containsKey(key);
+  }
+
+  @Override
+  public long getSizeInMemory() {
+    return 0;
+  }
+
+  @Override
+  public long getElementCountInMemory() {
+    return this.region.size();
+  }
+
+  @Override
+  public long getElementCountOnDisk() {
+    LocalRegion lr = (LocalRegion)this.region;
+    if (lr.getDiskRegion() != null) {
+      return lr.getDiskRegion().getNumOverflowOnDisk();
+    }
+    return 0;
+  }
+
+  @Override
+  public Map<Object, EntityWrapper> toMap() {
+    return Collections.unmodifiableMap(this.region);
+  }
+
+  /*
+   * only used by updateTimestamps cache
+   */
+  @Override
+  public long nextTimestamp() {
+    log.debug("nextTimestamp called");
+    return Timestamper.next();
+  }
+  
+  /*
+   * this is used by updateTimestamps cache only
+   */
+  @Override
+  public int getTimeout() {
+    return 60*1000; // all other cache providers have same value
+  }
+  
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof GemFireBaseRegion) {
+      GemFireBaseRegion other = (GemFireBaseRegion)obj;
+      if (this.region.getName().equals(other.region.getName())
+          && this.isClientRegion == other.isClientRegion) {
+        return true;
+      }
+    }
+    return false;
+  }
+  
+  @Override
+  public int hashCode() {
+    return this.region.hashCode() + (this.isClientRegion ? 1 : 0);
+  }
+  
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireCollectionRegion.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireCollectionRegion.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireCollectionRegion.java
new file mode 100644
index 0000000..620a332
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireCollectionRegion.java
@@ -0,0 +1,59 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import org.hibernate.cache.CacheDataDescription;
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.CollectionRegion;
+import org.hibernate.cache.access.AccessType;
+import org.hibernate.cache.access.CollectionRegionAccessStrategy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.modules.hibernate.GemFireRegionFactory;
+
+public class GemFireCollectionRegion extends GemFireBaseRegion implements CollectionRegion {
+
+  private Logger log = LoggerFactory.getLogger(getClass());
+  
+  public GemFireCollectionRegion(Region<Object, EntityWrapper> region,
+      boolean isClient, CacheDataDescription metadata,
+      GemFireRegionFactory regionFactory) {
+    super(region, isClient, metadata, regionFactory);
+  }
+
+  @Override
+  public boolean isTransactionAware() {
+    // TODO Auto-generated method stub
+    return false;
+  }
+
+  @Override
+  public CacheDataDescription getCacheDataDescription() {
+    // TODO Auto-generated method stub
+    return null;
+  }
+
+  @Override
+  public CollectionRegionAccessStrategy buildAccessStrategy(
+      AccessType accessType) throws CacheException {
+    log.debug("creating collection access for region:"+this.region.getName());
+    return new CollectionAccess(this);
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireEntityRegion.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireEntityRegion.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireEntityRegion.java
new file mode 100644
index 0000000..22ac466
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireEntityRegion.java
@@ -0,0 +1,187 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.ExecutorService;
+
+import org.hibernate.cache.CacheDataDescription;
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.EntityRegion;
+import org.hibernate.cache.access.AccessType;
+import org.hibernate.cache.access.EntityRegionAccessStrategy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.distributed.DistributedSystem;
+import com.gemstone.gemfire.internal.cache.LocalRegion;
+import com.gemstone.gemfire.modules.hibernate.GemFireRegionFactory;
+import com.gemstone.gemfire.modules.util.ModuleStatistics;
+
+public class GemFireEntityRegion extends GemFireBaseRegion implements EntityRegion {
+
+  private final Logger log = LoggerFactory.getLogger(getClass());
+  
+  private final boolean USE_JTA = Boolean.getBoolean("gemfiremodules.useJTA");
+  
+  /**
+   * keys for which interest has been registered already
+   */
+  private ConcurrentMap<Object, Boolean> registeredKeys = new ConcurrentHashMap<Object, Boolean>();
+
+  /**
+   * map to store the entries that were pre-fetched when the underlying region has no local storage
+   */
+  protected ConcurrentMap<Object, EntityWrapper> preFetchMap = new ConcurrentHashMap<Object, EntityWrapper>();
+  
+  public GemFireEntityRegion(Region<Object, EntityWrapper> region,
+      boolean isClient, CacheDataDescription metadata, GemFireRegionFactory regionFactory) {
+    super(region, isClient, metadata, regionFactory);
+  }
+
+  @Override
+  public boolean isTransactionAware() {
+    // there are no colocation guarantees while using hibernate
+    // so return false for a PartitionedRegion for now
+    if (USE_JTA) {
+      return true;
+    }
+    return false;
+  }
+
+  @Override
+  public CacheDataDescription getCacheDataDescription() {
+    return this.metadata;
+  }
+
+  @Override
+  public EntityRegionAccessStrategy buildAccessStrategy(AccessType accessType)
+      throws CacheException {
+    if (AccessType.READ_ONLY.equals(accessType)) {
+      log.info("creating read-only access for region: " + this.getName());
+      return new ReadOnlyAccess(this);
+    }
+    else if (AccessType.NONSTRICT_READ_WRITE.equals(accessType)) {
+      log.info("creating nonstrict-read-write access for region: "
+          + this.getName());
+      return new NonStrictReadWriteAccess(this);
+    }
+    else if (AccessType.READ_WRITE.equals(accessType)) {
+    	log.info("creating read-write access for region: "
+    	          + this.getName());
+      return new ReadWriteAccess(this);
+    }
+    else if (AccessType.TRANSACTIONAL.equals(accessType)) {
+    	log.info("creating transactional access for region: "
+    	          + this.getName());
+      return new TransactionalAccess(this);
+    }
+    throw new UnsupportedOperationException("Unknown access type: "
+        + accessType);
+  }
+
+  /**
+   * Should this region should register interest in keys.
+   * @return true for client regions with storage
+   */
+  public boolean isRegisterInterestRequired() {
+    return this.isClientRegion && this.region.getAttributes().getDataPolicy().withStorage();
+  }
+  
+  /**
+   * register interest in this key, if not already registered
+   * @param key
+   */
+  public void registerInterest(Object key) {
+    if (!this.registeredKeys.containsKey(key)) {
+      this.region.registerInterest(key);
+      this.registeredKeys.put(key, Boolean.TRUE);
+      log.debug("registered interest in key{}", key);
+    }
+  }
+  
+  public void registerInterest(Collection<?> list) {
+    // build a list of keys for which interest is not
+    // already registered
+    List<Object> interestList = new ArrayList<Object>();
+    for (Object o : list) {
+      if (!this.registeredKeys.containsKey(o)) {
+        interestList.add(o);
+      }
+    }
+    // register interest in this list
+    this.region.registerInterest(interestList);
+    log.debug("registered interest in {} keys", interestList.size());
+  }
+  
+  /**
+   * wraps the keys in {@link KeyWrapper} and calls getAll
+   * on the underlying GemFire region. When the underlying region
+   * is a proxy region, the fetched entries are stored in a local
+   * map.
+   * @param keys
+   */
+  public void getAll(Collection<?> keys) {
+    Set<KeyWrapper> wrappedKeys = new HashSet<KeyWrapper>();
+    for (Object o : keys) {
+      wrappedKeys.add(new KeyWrapper(o));
+    }
+    if (isRegisterInterestRequired()) {
+      registerInterest(wrappedKeys);
+    } else {
+      Map<Object, EntityWrapper> retVal = this.region.getAll(wrappedKeys);
+      putInLocalMap(retVal);
+    }
+  }
+
+  /**
+   * if the underlying gemfire region does not have local storage, put
+   * the pre-fetched entries in {@link #preFetchMap}
+   * @param map map of prefetched entries
+   */
+  private void putInLocalMap(Map<Object, EntityWrapper> map) {
+    if (!this.region.getAttributes().getDataPolicy().withStorage()) {
+      // if the value is null, do not cache in preFetchMap
+      for (Entry<Object, EntityWrapper> e : map.entrySet()) {
+        if (e.getValue() != null) {
+          this.preFetchMap.put(e.getKey(), e.getValue());
+          log.debug("putting key: {} value: {} in local map", e.getKey(), e.getValue());
+        }
+      }
+    }
+  }
+
+  /**
+   * If this key was pre-fetched, get the entity.
+   * @param key
+   * @return the prefetched entity
+   */
+  public EntityWrapper get(Object key) {
+    return this.preFetchMap.remove(key);
+  }
+}
+

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireQueryResultsRegion.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireQueryResultsRegion.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireQueryResultsRegion.java
new file mode 100644
index 0000000..ce06b85
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/GemFireQueryResultsRegion.java
@@ -0,0 +1,113 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.util.Collections;
+import java.util.Map;
+
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.QueryResultsRegion;
+import org.hibernate.cache.Timestamper;
+import org.hibernate.cache.TimestampsRegion;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.EntryNotFoundException;
+import com.gemstone.gemfire.cache.Region;
+
+public class GemFireQueryResultsRegion implements QueryResultsRegion, TimestampsRegion {
+
+  private final Region region;
+  
+  private Logger log = LoggerFactory.getLogger(getClass());
+  
+  public GemFireQueryResultsRegion(Region region) {
+    this.region = region;
+  }
+  
+  @Override
+  public Object get(Object key) throws CacheException {
+    log.debug("get query results for {} ", key);
+    return this.region.get(key);
+  }
+
+  @Override
+  public void put(Object key, Object value) throws CacheException {
+    log.debug("For key {} putting query results {} ", key, value);
+    this.region.put(key, value);
+  }
+
+  @Override
+  public void evict(Object key) throws CacheException {
+    log.debug("removing query results for key {}", key);
+    this.region.remove(key);
+  }
+
+  @Override
+  public void evictAll() throws CacheException {
+    log.debug("clearing the query cache");
+    this.region.clear();
+  }
+
+  @Override
+  public String getName() {
+    return this.region.getName();
+  }
+
+  @Override
+  public void destroy() throws CacheException {
+    if (!this.region.isDestroyed()) {
+      this.region.destroyRegion();
+    }
+  }
+
+  @Override
+  public boolean contains(Object key) {
+    return this.region.containsKey(key);
+  }
+
+  @Override
+  public long getSizeInMemory() {
+    return -1;
+  }
+
+  @Override
+  public long getElementCountInMemory() {
+    return this.region.size();
+  }
+
+  @Override
+  public long getElementCountOnDisk() {
+    // TODO make this an overflow region
+    return -1;
+  }
+
+  @Override
+  public Map toMap() {
+    return Collections.unmodifiableMap(this.region);
+  }
+
+  @Override
+  public long nextTimestamp() {
+    return Timestamper.next();
+  }
+
+  @Override
+  public int getTimeout() {
+    return 60*1000; // all other cache providers have same value
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/KeyWrapper.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/KeyWrapper.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/KeyWrapper.java
new file mode 100644
index 0000000..c321076
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/KeyWrapper.java
@@ -0,0 +1,93 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.io.Serializable;
+
+import org.hibernate.cache.CacheKey;
+
+import com.gemstone.gemfire.DataSerializable;
+import com.gemstone.gemfire.DataSerializer;
+
+/**
+ * wraps {@link CacheKey}, and implements equals and
+ * hashCode. This is required for register interest
+ * operation/prefetching
+ * @author sbawaska
+ *
+ */
+public class KeyWrapper implements DataSerializable {
+  
+  private Serializable key;
+  private String entityName;
+  
+  private static final String separator = "#";
+  
+  public KeyWrapper() {
+  }
+  
+  public KeyWrapper(Object p_key) {
+    if (p_key instanceof String) {
+      String stringKey = (String)p_key;
+      this.key = stringKey.substring(stringKey.indexOf(separator)+1);
+      this.entityName = stringKey.substring(0, stringKey.indexOf(separator));
+    } else {
+      CacheKey cacheKey = (CacheKey)p_key;
+      this.key = cacheKey.getKey();
+      this.entityName = cacheKey.getEntityOrRoleName();
+    }
+  }
+  
+  @Override
+  public boolean equals(Object obj) {
+    if (obj instanceof KeyWrapper) {
+      KeyWrapper other = (KeyWrapper)obj;
+      if (this.key.toString().equals(other.key.toString())
+          && this.entityName.equals(other.entityName)) {
+        return true;
+      }
+    }
+    return false;
+  }
+  
+  @Override
+  public int hashCode() {
+    return this.key.toString().hashCode() + this.entityName.hashCode();
+  }
+  
+  @Override
+  public String toString() {
+    StringBuilder sb = new StringBuilder();
+    sb.append(this.entityName).append(separator).append(this.key);
+    return sb.toString();
+  }
+
+  @Override
+  public void toData(DataOutput out) throws IOException {
+    DataSerializer.writeObject(this.key, out);
+    out.writeUTF(this.entityName);
+  }
+
+  @Override
+  public void fromData(DataInput in) throws IOException, ClassNotFoundException {
+    this.key = DataSerializer.readObject(in);
+    this.entityName = in.readUTF();
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/NonStrictReadWriteAccess.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/NonStrictReadWriteAccess.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/NonStrictReadWriteAccess.java
new file mode 100644
index 0000000..ad617e4
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/NonStrictReadWriteAccess.java
@@ -0,0 +1,83 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.access.SoftLock;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NonStrictReadWriteAccess extends Access {
+
+  private Logger log = LoggerFactory.getLogger(getClass());
+
+  public NonStrictReadWriteAccess(GemFireEntityRegion region) {
+    super(region);
+  }
+
+  @Override
+  public SoftLock lockItem(Object key, Object version) throws CacheException {
+    log.debug("lock item called for key {}", key);
+    return null;
+  }
+
+  @Override
+  public boolean afterUpdate(Object key, Object value, Object currentVersion,
+      Object previousVersion, SoftLock lock) throws CacheException {
+    log.debug("after update called for key: {} value: {}", key, value);
+    getGemFireRegion().put(getWrappedKey(key), new EntityWrapper(value, -1L));
+    return true;
+  }
+  
+  @Override
+  public boolean update(Object key, Object value, Object currentVersion,
+      Object previousVersion) throws CacheException {
+    log.debug("updating key: {} value: {}", key, value);
+    getGemFireRegion().put(getWrappedKey(key), new EntityWrapper(value, -1L));
+    return true;
+  }
+//  
+//  @Override
+//  public boolean insert(Object key, Object value, Object version)
+//      throws CacheException {
+//    log.debug("inserting key:{} value:{}", key, value);
+//    getGemFireRegion().put(key, new EntityWrapper(value, -1L));
+//    return true;
+//  }
+//  
+//  @Override
+//  public boolean afterInsert(Object key, Object value, Object version)
+//      throws CacheException {
+//    log.debug("after insert called for key:{} value:{}", key, value);
+//    getGemFireRegion().put(key, new EntityWrapper(value, -1L));
+//    return true;
+//  }
+//  
+  @Override
+  public boolean putFromLoad(Object key, Object value, long txTimestamp,
+      Object version) throws CacheException {
+    return putFromLoad(key, value, txTimestamp, version, true);
+  }
+  
+  @Override
+  public boolean putFromLoad(Object key, Object value, long txTimestamp,
+      Object version, boolean minimalPutOverride) throws CacheException {
+    log.debug("putting a new entry from load key:{} value:{}", key, value);
+    getGemFireRegion().put(getWrappedKey(key), new EntityWrapper(value, -1L));
+    return true;
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadOnlyAccess.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadOnlyAccess.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadOnlyAccess.java
new file mode 100644
index 0000000..6f54067
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadOnlyAccess.java
@@ -0,0 +1,55 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import org.hibernate.cache.CacheException;
+import org.hibernate.cache.access.SoftLock;
+
+public class ReadOnlyAccess extends Access {
+
+  public ReadOnlyAccess(GemFireEntityRegion region) {
+    super(region);
+  }
+
+  @Override
+  public boolean insert(Object key, Object value, Object version)
+      throws CacheException {
+    throw new UnsupportedOperationException(
+        "insert not supported on read only access");
+  }
+
+  @Override
+  public boolean update(Object key, Object value, Object currentVersion,
+      Object previousVersion) throws CacheException {
+    throw new UnsupportedOperationException(
+        "update not supported on read only access");
+  }
+
+  @Override
+  public boolean afterInsert(Object key, Object value, Object version)
+      throws CacheException {
+    throw new UnsupportedOperationException(
+        "insert not supported on read only access");
+  }
+
+  @Override
+  public boolean afterUpdate(Object key, Object value, Object currentVersion,
+      Object previousVersion, SoftLock lock) throws CacheException {
+    throw new UnsupportedOperationException(
+        "update not supported on read only access");
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadWriteAccess.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadWriteAccess.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadWriteAccess.java
new file mode 100644
index 0000000..3c80174
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/ReadWriteAccess.java
@@ -0,0 +1,36 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import org.hibernate.cache.CacheException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ReadWriteAccess extends Access {
+
+  private Logger log = LoggerFactory.getLogger(getClass());
+
+  public ReadWriteAccess(GemFireEntityRegion region) {
+    super(region);
+  }
+
+  @Override
+  public boolean update(Object key, Object value, Object currentVersion,
+      Object previousVersion) throws CacheException {
+    return super.update(key, value, currentVersion, previousVersion);
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/RegionFactoryDelegate.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/RegionFactoryDelegate.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/RegionFactoryDelegate.java
new file mode 100644
index 0000000..76fdf77
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/RegionFactoryDelegate.java
@@ -0,0 +1,153 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+import java.util.Iterator;
+import java.util.Properties;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.gemstone.gemfire.cache.Cache;
+import com.gemstone.gemfire.cache.CacheFactory;
+import com.gemstone.gemfire.cache.DataPolicy;
+import com.gemstone.gemfire.cache.GemFireCache;
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.cache.RegionShortcut;
+import com.gemstone.gemfire.cache.client.ClientRegionShortcut;
+import com.gemstone.gemfire.cache.execute.FunctionService;
+import com.gemstone.gemfire.internal.cache.GemFireCacheImpl;
+import com.gemstone.gemfire.modules.hibernate.GemFireCacheProvider;
+import com.gemstone.gemfire.modules.util.BootstrappingFunction;
+import com.gemstone.gemfire.modules.util.CreateRegionFunction;
+import com.gemstone.gemfire.modules.util.RegionConfiguration;
+
+public class RegionFactoryDelegate  {
+
+  private static final String LOG_FILE = "log-file";
+
+  private static final String CACHE_XML_FILE = "cache-xml-file";
+
+  private static final String DEFAULT_REGION_TYPE = RegionShortcut.REPLICATE_HEAP_LRU.name();
+
+  private static final String CLIENT_DEFAULT_REGION_TYPE = ClientRegionShortcut.PROXY.name();
+
+  protected final Properties gemfireProperties;
+  protected final Properties regionProperties;
+
+  protected Logger log = LoggerFactory.getLogger(getClass());
+  
+  private Cache cache;
+  
+  public RegionFactoryDelegate(Properties gemfireProperties, Properties regionProperties) {
+    this.gemfireProperties = gemfireProperties;
+    this.regionProperties = regionProperties;
+  }
+  
+  public GemFireCache startCache() {
+    log.info("Creating a GemFire cache");
+    checkExistingCache();
+    cache = new CacheFactory(gemfireProperties).create();
+    log.debug("GemFire cache creation completed");
+    FunctionService.onMembers(this.cache.getDistributedSystem()).execute(new BootstrappingFunction()).getResult();
+    FunctionService.registerFunction(new CreateRegionFunction(cache));
+    return cache;
+  }
+
+  /**
+   * When hibernate module is running within servlet container, we should
+   * check if http module is being used and make sure that we use 
+   * same cache-xml and log-file properties.
+   */
+  protected void checkExistingCache() {
+    Cache existingCache = GemFireCacheImpl.getInstance();
+    if (existingCache == null) {
+      return;
+    }
+    Properties existingProps = existingCache.getDistributedSystem().getProperties();
+    String cacheXML = existingProps.getProperty(CACHE_XML_FILE);
+    String logFile = existingProps.getProperty(LOG_FILE, "");
+    this.gemfireProperties.setProperty(CACHE_XML_FILE, cacheXML);
+    this.gemfireProperties.setProperty(LOG_FILE, logFile);
+    log.info("Existing GemFire cache detected. Using same "+CACHE_XML_FILE+":"+cacheXML+
+    " and "+LOG_FILE+":"+logFile+" as existing cache");
+  }
+  
+  public Region<Object, EntityWrapper> createRegion(String regionName) {
+    Region<Object, EntityWrapper> r = cache.getRegion(regionName);
+    if (r != null) {
+      // for  the peer-to-peer case, for now we assume that
+      // cache.xml will be the same for all peers
+      // TODO validate regions without this assumption
+      return r;
+    }
+    String regionType = getRegionType(regionName);
+    boolean isLocalRegion = regionType.contains("LOCAL") ? true : false;
+    RegionConfiguration regionConfig = new RegionConfiguration();
+    regionConfig.setRegionName(regionName);
+    regionConfig.setRegionAttributesId(regionType);
+    regionConfig.setCacheWriterName(EntityRegionWriter.class.getCanonicalName());
+    com.gemstone.gemfire.cache.RegionFactory<Object, EntityWrapper> rFactory = this.cache
+        .createRegionFactory(RegionShortcut.valueOf(regionType));
+    rFactory.setCacheWriter(new EntityRegionWriter());
+    if (isLocalRegion) {
+      rFactory.setDataPolicy(DataPolicy.REPLICATE);
+    }
+    r = rFactory.create(regionName);
+    // create same region on peers
+    if (!isLocalRegion) {
+      FunctionService.onMembers(this.cache.getDistributedSystem())
+          .withArgs(regionConfig).execute(CreateRegionFunction.ID).getResult();
+    }
+    return r;
+  }
+
+  /**
+   * returns the type of region to create by consulting the properties specified
+   * in hibernate.cfg.xml
+   * 
+   * @see #createRegion(String)
+   * @param regionName
+   * @return string representation of {@link RegionShortcut}
+   * @see GemFireCacheProvider
+   */
+  protected String getRegionType(String regionName) {
+    String rType = getOverridenRegionType(regionName);
+    if (rType != null) {
+      return rType.toUpperCase();
+    }
+    rType = regionProperties
+        .getProperty("gemfire.default-region-attributes-id");
+    if (rType == null) {
+      rType =  DEFAULT_REGION_TYPE;
+    }
+    return rType.toUpperCase();
+  }
+
+  private String getOverridenRegionType(String regionName) {
+    String rType = null;
+    Iterator<Object> it = regionProperties.keySet().iterator();
+    while (it.hasNext()) {
+      String current = (String)it.next();
+      if (current.contains(regionName)) {
+        rType = regionProperties.getProperty(current);
+        break;
+      }
+    }
+    return rType;
+  }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/TransactionalAccess.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/TransactionalAccess.java b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/TransactionalAccess.java
new file mode 100644
index 0000000..f12eab9
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/main/java/com/gemstone/gemfire/modules/hibernate/internal/TransactionalAccess.java
@@ -0,0 +1,25 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.gemstone.gemfire.modules.hibernate.internal;
+
+public class TransactionalAccess extends Access {
+
+  public TransactionalAccess(GemFireEntityRegion region) {
+    super(region);
+  }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/Event.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/Event.java b/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/Event.java
new file mode 100644
index 0000000..962c083
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/Event.java
@@ -0,0 +1,67 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules;
+
+import java.util.Date;
+
+public class Event {
+    private Long id;
+
+    private String title;
+    private Date date;
+    private int i;
+
+    public Event() {}
+
+    public Long getId() {
+        return id;
+    }
+
+    private void setId(Long id) {
+        this.id = id;
+    }
+
+    public Date getDate() {
+        return date;
+    }
+
+    public Integer getVersion() {
+    	return i;
+    }
+    
+    public void setVersion(int i) {
+    	this.i = i;
+    }
+    
+    public void setDate(Date date) {
+        this.date = date;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+    @Override
+    public String toString() {
+    	StringBuilder b = new StringBuilder();
+    	b.append("Event:id:"+id+" title:"+title+" date:"+date);
+    	return b.toString();
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-geode/blob/f6c4c2f9/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/HibernateJUnitTest.java
----------------------------------------------------------------------
diff --git a/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/HibernateJUnitTest.java b/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/HibernateJUnitTest.java
new file mode 100644
index 0000000..9a86f10
--- /dev/null
+++ b/extensions/geode-modules-hibernate/src/test/java/com/gemstone/gemfire/modules/HibernateJUnitTest.java
@@ -0,0 +1,410 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements.  See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You under the Apache License, Version 2.0
+* (the "License"); you may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.gemstone.gemfire.modules;
+
+import com.gemstone.gemfire.cache.Region;
+import com.gemstone.gemfire.cache.Region.Entry;
+import com.gemstone.gemfire.internal.cache.GemFireCacheImpl;
+import com.gemstone.gemfire.modules.Owner.Status;
+import com.gemstone.gemfire.test.junit.categories.IntegrationTest;
+import org.hibernate.Query;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.cfg.AnnotationConfiguration;
+import org.hibernate.cfg.Configuration;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+import java.util.logging.Level;
+
+import static org.junit.Assert.assertEquals;
+
+@Category(IntegrationTest.class)
+public class HibernateJUnitTest {
+
+  private Logger log = LoggerFactory.getLogger(getClass());
+
+  //private static final String jdbcURL = "jdbc:hsqldb:hsql://localhost/test";
+  private static final String jdbcURL = "jdbc:hsqldb:mem:test";
+
+  static File tmpDir;
+
+  static String gemfireLog;
+
+  @Before
+  public void setUp() throws Exception {
+    // Create a per-user scratch directory
+    tmpDir = new File(System.getProperty("java.io.tmpdir"),
+            "gemfire_modules-" + System.getProperty("user.name"));
+    tmpDir.mkdirs();
+    tmpDir.deleteOnExit();
+
+    gemfireLog = tmpDir.getPath() +
+            System.getProperty("file.separator") + "gemfire_modules.log";
+  }
+
+  public static SessionFactory getSessionFactory(Properties overrideProps) {
+    System.setProperty("gemfire.home", "GEMFIREHOME");
+    Configuration cfg = new Configuration();
+    cfg.setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
+    cfg.setProperty("hibernate.connection.driver_class",
+        "org.hsqldb.jdbcDriver");
+    // cfg.setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:test");
+    cfg.setProperty("hibernate.connection.url", jdbcURL);
+    cfg.setProperty("hibernate.connection.username", "sa");
+    cfg.setProperty("hibernate.connection.password", "");
+    cfg.setProperty("hibernate.connection.pool_size", "1");
+    cfg.setProperty("hibernate.connection.autocommit", "true");
+    cfg.setProperty("hibernate.hbm2ddl.auto", "update");
+
+    cfg.setProperty("hibernate.cache.region.factory_class",
+        "com.gemstone.gemfire.modules.hibernate.GemFireRegionFactory");
+    cfg.setProperty("hibernate.show_sql", "true");
+    cfg.setProperty("hibernate.cache.use_query_cache", "true");
+    //cfg.setProperty("gemfire.mcast-port", AvailablePort.getRandomAvailablePort(AvailablePort.JGROUPS)+"");
+    cfg.setProperty("gemfire.mcast-port", "0");
+    cfg.setProperty("gemfire.statistic-sampling-enabled", "true");
+    cfg.setProperty("gemfire.log-file", gemfireLog);
+    cfg.setProperty("gemfire.writable-working-dir", tmpDir.getPath());
+    //cfg.setProperty("gemfire.statistic-archive-file", "plugin-stats-file.gfs");
+    //cfg.setProperty("gemfire.default-client-region-attributes-id", "CACHING_PROXY");
+    //cfg.setProperty("gemfire.cache-topology", "client-server");
+    //cfg.setProperty("gemfire.locators", "localhost[5432]");
+    //cfg.setProperty("gemfire.log-level", "fine");
+    // cfg.setProperty("", "");
+    cfg.addClass(Person.class);
+    cfg.addClass(Event.class);
+    if (overrideProps != null) {
+      Iterator it = overrideProps.keySet().iterator();
+      while (it.hasNext()) {
+        String key = (String)it.next();
+        cfg.setProperty(key, overrideProps.getProperty(key));
+      }
+    }
+    return cfg.buildSessionFactory();
+  }
+
+  @Test
+  public void testpreload() {
+    log.info("SWAP:creating session factory In hibernateTestCase");
+
+    Session session = getSessionFactory(null).openSession();
+    log.info("SWAP:session opened");
+    session.beginTransaction();
+    Event theEvent = new Event();
+    theEvent.setTitle("title");
+    theEvent.setDate(new Date());
+    session.save(theEvent);
+    Long id = theEvent.getId();
+    session.getTransaction().commit();
+    session.beginTransaction();
+    Event ev = (Event)session.get(Event.class, id);
+    log.info("SWAP:load complete: " + ev);
+    session.getTransaction().commit();
+  }
+
+  @Test
+  public void testNothing() throws Exception {
+    java.util.logging.Logger.getLogger("org.hibernate").setLevel(Level.ALL);
+    log.info("SWAP:creating session factory In hibernateTestCase");
+
+    Session session = getSessionFactory(null).openSession();
+    log.info("SWAP:session opened");
+    // session.setFlushMode(FlushMode.COMMIT);
+    session.beginTransaction();
+    Event theEvent = new Event();
+    theEvent.setTitle("title");
+    theEvent.setDate(new Date());
+    //session.save(theEvent);
+    session.persist(theEvent);
+    Long id = theEvent.getId();
+    session.getTransaction().commit();
+    log.info("commit complete...doing load");
+    session.beginTransaction();
+    Event ev = (Event)session.load(Event.class, id);
+    log.info("load complete: " + ev);
+    log.trace("SWAP");
+    ev.setTitle("newTitle");
+    session.save(ev);
+    log.info("commit");
+    session.getTransaction().commit();
+    log.info("save complete " + ev);
+
+    session.beginTransaction();
+    ev = (Event)session.load(Event.class, id);
+    log.info("load complete: " + ev);
+    ev.setTitle("newTitle2");
+    session.save(ev);
+    log.info("commit");
+    session.getTransaction().commit();
+    log.info("save complete " + ev);
+
+    ev = (Event)session.load(Event.class, id);
+    log.info("second load " + ev);
+    session.flush();
+    session.close();
+    log.info("flush complete session:" + session);
+
+    for (int i=0; i<5; i++) {
+      session = getSessionFactory(null).openSession();
+      log.info("doing get "+id);
+      // ev = (Event) session.load(Event.class, id);
+      ev = (Event)session.get(Event.class, id);
+      log.info("third load " + ev);
+    }
+    printExistingDB();
+    Iterator it = GemFireCacheImpl.getInstance().rootRegions().iterator();
+    while (it.hasNext()) {
+      Region r = (Region)it.next();
+      System.out.println("Region:"+r);
+      Iterator enIt = r.entrySet().iterator();
+      while (enIt.hasNext()) {
+        Region.Entry re = (Entry)enIt.next();
+        System.out.println("key:"+re.getKey()+" value:"+re.getValue());
+      }
+    }
+    Thread.sleep(3000);
+     //System.in.read();
+    // try direct data
+
+  }
+
+  public void _testInvalidation() {
+    Session s = getSessionFactory(null).openSession();
+  }
+
+  static Long personId;
+
+  @Test
+  public void testRelationship() throws Exception {
+    //java.util.logging.Logger.getLogger("org.hibernate").setLevel(Level.ALL);
+    Properties props = new Properties();
+    props.put("gemfire.topology", "client-server");
+    Session session = getSessionFactory(null).openSession();
+    session.beginTransaction();
+
+    Person thePerson = new Person();
+    thePerson.setFirstname("foo");
+    thePerson.setLastname("bar");
+    thePerson.setAge(1);
+    thePerson.setId(99L);
+    session.save(thePerson);
+    personId = thePerson.getId();
+    log.info("person saved");
+    
+    Event theEvent = new Event();
+    theEvent.setTitle("title");
+    theEvent.setDate(new Date());
+    session.save(theEvent);
+    Long eventId = theEvent.getId();
+    log.info("event saved");
+    
+    Event theEvent2 = new Event();
+    theEvent2.setTitle("title2");
+    theEvent2.setDate(new Date());
+    session.save(theEvent2);
+    Long eventId2 = theEvent2.getId();
+    log.info("event2 saved");
+    session.getTransaction().commit();
+    
+    session.beginTransaction();
+    Person aPerson = (Person) session.load(Person.class, personId);
+    Event anEvent = (Event) session.load(Event.class, eventId);
+    Event anEvent2 = (Event) session.load(Event.class, eventId2);
+    log.info("adding event to person");
+    aPerson.getE().add(anEvent);
+    aPerson.getE().add(anEvent2);
+    log.info("calling commit");
+
+    session.getTransaction().commit();
+    log.info("commit complete");
+    session.close();
+    log.info("opening new session");
+    session = getSessionFactory(null).openSession();
+    log.info("SWAP:loading person");
+    aPerson = (Person)session.load(Person.class, personId);
+    log.info("loading events");
+    Iterator<Event> e = aPerson.getE().iterator();
+    while (e.hasNext()) {
+      e.next();
+    }
+    session.close();
+    log.info("opening new session");
+    session = getSessionFactory(null).openSession();
+    log.info("SWAP:loading person");
+    aPerson = (Person)session.load(Person.class, personId);
+    log.info("loading events");
+    e = aPerson.getE().iterator();
+    while (e.hasNext()) {
+      e.next();
+    }
+
+    log.info(aPerson.getE()+"");
+    session.close();
+    //System.in.read();
+//    log.info("opening third session");
+//    session = getSessionFactory().openSession();
+//    log.info("loading person");
+//    aPerson = (Person)session.load(Person.class, personId);
+//    log.info("loading events");
+//    log.info(aPerson.getEvents()+"");
+  }
+  
+  public void _testQueryCache() throws Exception {
+    Session session = getSessionFactory(null).openSession();
+    Query q = session.createQuery("from Event");
+    q.setCacheable(true);
+    List l = q.list();
+    log.info("list:"+l);
+//    log.info("Sleeping for 10 seconds");
+//    Thread.sleep(10000);
+    l = q.list();
+    log.info("list2:"+l);
+    log.info("updating an event");
+    session.beginTransaction();
+    Event e = (Event)l.get(0);
+    e.setDate(new Date());
+    session.saveOrUpdate(e);
+    session.getTransaction().commit();
+    l = q.list();
+    log.info("list3:"+l);
+  }
+
+  @Test
+  public void testInsert() {
+    Session session = getSessionFactory(null).openSession();
+    Region r = GemFireCacheImpl.getExisting().getRegion(Person.class.getCanonicalName());
+    int initSize = r.size();
+    session.beginTransaction();
+    log.info("SWAP: Saving Person");
+    Person p = new Person();
+    p.setId(10L);
+    p.setFirstname("foo");
+    p.setLastname("bar");
+    session.saveOrUpdate("Person", p);
+    session.getTransaction().commit();
+    assertEquals(1, session.getStatistics().getEntityCount());
+    assertEquals(initSize+1, r.size());
+
+    session.beginTransaction();
+    p.setAge(1);
+    session.saveOrUpdate(p);
+    session.getTransaction().commit();
+    assertEquals(1, session.getStatistics().getEntityCount());
+  }
+
+  @Test
+  public void testNormalRegion() {
+    Properties props = new Properties();
+    props.setProperty("gemfire.default-region-attributes-id", "LOCAL");
+    Session session = getSessionFactory(props).openSession();
+    session.beginTransaction();
+    Event theEvent = new Event();
+    theEvent.setTitle("title");
+    theEvent.setDate(new Date());
+    session.save(theEvent);
+    Long id = theEvent.getId();
+    session.getTransaction().commit();
+    session.beginTransaction();
+    Event ev = (Event)session.load(Event.class, id);
+    ev.setTitle("newTitle");
+    session.save(ev);
+    session.getTransaction().commit();
+  }
+  
+  private void printExistingDB() throws SQLException {
+    try {
+      Class.forName("org.hsqldb.jdbc.JDBCDriver");
+    }
+    catch (Exception e) {
+      System.err.println("ERROR: failed to load HSQLDB JDBC driver.");
+      e.printStackTrace();
+      return;
+    }
+
+    Connection c = DriverManager.getConnection(jdbcURL, "SA", "");
+    log.info("issuing query...");
+    ResultSet rs = c.createStatement().executeQuery("select * from events");
+    int col = rs.getMetaData().getColumnCount();
+    while (rs.next()) {
+      StringBuilder b = new StringBuilder();
+      for (int i = 1; i <= col; i++) {
+        b.append(" col:" + i + ":" + rs.getString(i));
+      }
+      log.info("Query result:" + b.toString());
+    }
+  }
+
+  @Test
+  public void testEnum() {
+    AnnotationConfiguration cfg = new AnnotationConfiguration();
+    cfg.addAnnotatedClass(Owner.class);
+    cfg.setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
+    cfg.setProperty("hibernate.connection.driver_class",
+        "org.hsqldb.jdbcDriver");
+    cfg.setProperty("hibernate.connection.url", jdbcURL);
+    cfg.setProperty("hibernate.connection.username", "sa");
+    cfg.setProperty("hibernate.connection.password", "");
+    cfg.setProperty("hibernate.connection.pool_size", "1");
+    cfg.setProperty("hibernate.connection.autocommit", "true");
+    cfg.setProperty("hibernate.hbm2ddl.auto", "update");
+
+    cfg.setProperty("hibernate.cache.region.factory_class",
+        "com.gemstone.gemfire.modules.hibernate.GemFireRegionFactory");
+    cfg.setProperty("hibernate.show_sql", "true");
+    cfg.setProperty("hibernate.cache.use_query_cache", "true");
+    cfg.setProperty("gemfire.statistic-sampling-enabled", "true");
+    cfg.setProperty("gemfire.log-file", gemfireLog);
+    cfg.setProperty("gemfire.writable-working-dir", tmpDir.getPath());
+    cfg.setProperty("gemfire.mcast-port", "0");
+    //cfg.setProperty("gemfire.cache-topology", "client-server");
+
+    SessionFactory sf = cfg.buildSessionFactory();
+    Session session = sf.openSession();
+    session.beginTransaction();
+    Owner o = new Owner();
+    o.setAddress("addr");
+    o.setCity("pdx");
+    o.setStatus(Status.PREMIUM);
+    session.save(o);
+    long id = o.getId();
+    log.info("testEnum:commiting tx");
+    session.getTransaction().commit();
+    session.close();
+    
+    session = sf.openSession();
+    Owner o1 = (Owner) session.load(Owner.class, id);
+    log.info("loaded:"+o);
+    assertEquals(o.getAddress(), o1.getAddress());
+    assertEquals(o.getCity(), o1.getCity());
+    assertEquals(o.getStatus(), o1.getStatus());
+    o1.setAddress("address2");
+    session.save(o1);
+  }
+}


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