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From se...@apache.org
Subject [09/13] incubator-ignite git commit: ignite-qry - merged
Date Tue, 09 Dec 2014 16:33:19 GMT
http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryProcessor.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryProcessor.java b/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryProcessor.java
new file mode 100644
index 0000000..94db08d
--- /dev/null
+++ b/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryProcessor.java
@@ -0,0 +1,1672 @@
+/* @java.file.header */
+
+/*  _________        _____ __________________        _____
+ *  __  ____/___________(_)______  /__  ____/______ ____(_)_______
+ *  _  / __  __  ___/__  / _  __  / _  / __  _  __ `/__  / __  __ \
+ *  / /_/ /  _  /    _  /  / /_/ /  / /_/ /  / /_/ / _  /  _  / / /
+ *  \____/   /_/     /_/   \_,__/   \____/   \__,_/  /_/   /_/ /_/
+ */
+
+package org.gridgain.grid.kernal.processors.query;
+
+import org.apache.ignite.lang.*;
+import org.apache.ignite.portables.*;
+import org.apache.ignite.spi.indexing.*;
+import org.gridgain.grid.*;
+import org.gridgain.grid.cache.*;
+import org.gridgain.grid.cache.query.*;
+import org.gridgain.grid.kernal.*;
+import org.gridgain.grid.kernal.processors.*;
+import org.gridgain.grid.util.*;
+import org.gridgain.grid.util.future.*;
+import org.gridgain.grid.util.lang.*;
+import org.gridgain.grid.util.tostring.*;
+import org.gridgain.grid.util.typedef.*;
+import org.gridgain.grid.util.typedef.internal.*;
+import org.gridgain.grid.util.worker.*;
+import org.jdk8.backport.*;
+import org.jetbrains.annotations.*;
+
+import java.lang.reflect.*;
+import java.util.*;
+import java.util.concurrent.*;
+
+import static org.gridgain.grid.kernal.GridComponentType.*;
+import static org.gridgain.grid.kernal.processors.query.GridQueryIndexType.*;
+
+/**
+ * Indexing processor.
+ */
+public class GridQueryProcessor extends GridProcessorAdapter {
+    /** For tests. */
+    public static Class<? extends GridQueryIndexing> idxCls;
+
+    /** */
+    private final GridSpinBusyLock busyLock = new GridSpinBusyLock();
+
+    /** Type descriptors. */
+    private final ConcurrentMap<TypeId, TypeDescriptor> types = new ConcurrentHashMap8<>();
+
+    /** Type descriptors. */
+    private final ConcurrentMap<TypeName, TypeDescriptor> typesByName = new ConcurrentHashMap8<>();
+
+    /** */
+    private ExecutorService execSvc;
+
+    /** */
+    private final GridQueryIndexing idx;
+
+    /** Configuration-declared types. */
+    private final Map<TypeName, GridCacheQueryTypeMetadata> declaredTypesByName = new HashMap<>();
+
+    /** Configuration-declared types. */
+    private Map<TypeId, GridCacheQueryTypeMetadata> declaredTypesById;
+
+    /** Portable IDs. */
+    private Map<Integer, String> portableIds;
+
+    /** Type resolvers per space name. */
+    private Map<String, GridCacheQueryTypeResolver> typeResolvers = new HashMap<>();
+
+    /**
+     * @param ctx Kernal context.
+     */
+    public GridQueryProcessor(GridKernalContext ctx) throws GridException {
+        super(ctx);
+
+        if (idxCls != null) {
+            idx = U.newInstance(idxCls);
+
+            idxCls = null;
+        }
+        else
+            idx = INDEXING.inClassPath() ? U.<GridQueryIndexing>newInstance(INDEXING.className()) : null;
+    }
+
+    /** {@inheritDoc} */
+    @Override public void start() throws GridException {
+        super.start();
+
+        if (idx != null) {
+            ctx.resource().injectGeneric(idx);
+
+            idx.start(ctx);
+
+            for (GridCacheConfiguration ccfg : ctx.config().getCacheConfiguration()){
+                GridCacheQueryConfiguration qryCfg = ccfg.getQueryConfiguration();
+
+                if (qryCfg != null) {
+                    if (!F.isEmpty(qryCfg.getTypeMetadata())) {
+                        for (GridCacheQueryTypeMetadata meta : qryCfg.getTypeMetadata())
+                            declaredTypesByName.put(new TypeName(ccfg.getName(), meta.getType()), meta);
+                    }
+
+                    if (qryCfg.getTypeResolver() != null)
+                        typeResolvers.put(ccfg.getName(), qryCfg.getTypeResolver());
+                }
+            }
+
+            execSvc = ctx.config().getExecutorService();
+        }
+    }
+
+    /** {@inheritDoc} */
+    @Override public void onKernalStop(boolean cancel) {
+        super.onKernalStop(cancel);
+
+        busyLock.block();
+    }
+
+    /** {@inheritDoc} */
+    @Override public void stop(boolean cancel) throws GridException {
+        super.stop(cancel);
+
+        if (idx != null)
+            idx.stop();
+    }
+
+    /**
+     * Returns number of objects of given type for given space of spi.
+     *
+     * @param space Space.
+     * @param valType Value type.
+     * @return Objects number or -1 if this type is unknown for given SPI and space.
+     * @throws GridException If failed.
+     */
+    public long size(@Nullable String space, Class<?> valType) throws GridException {
+        checkEnabled();
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to get space size (grid is stopping).");
+
+        try {
+            TypeDescriptor desc = types.get(new TypeId(space, valType));
+
+            if (desc == null || !desc.registered())
+                return -1;
+
+            return idx.size(space, desc, null);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Rebuilds all search indexes of given value type for given space of spi.
+     *
+     * @param space Space.
+     * @param valTypeName Value type name.
+     * @return Future that will be completed when rebuilding of all indexes is finished.
+     */
+    public IgniteFuture<?> rebuildIndexes(@Nullable final String space, String valTypeName) {
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to rebuild indexes (grid is stopping).");
+
+        try {
+            return rebuildIndexes(space, typesByName.get(new TypeName(space, valTypeName)));
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * @param space Space.
+     * @param desc Type descriptor.
+     * @return Future that will be completed when rebuilding of all indexes is finished.
+     */
+    private IgniteFuture<?> rebuildIndexes(@Nullable final String space, @Nullable final TypeDescriptor desc) {
+        if (idx == null)
+            return new GridFinishedFuture<>(ctx, new GridException("Indexing is disabled."));
+
+        if (desc == null || !desc.registered())
+            return new GridFinishedFuture<Void>(ctx);
+
+        final GridWorkerFuture<?> fut = new GridWorkerFuture<Void>();
+
+        GridWorker w = new GridWorker(ctx.gridName(), "index-rebuild-worker", log) {
+            @Override protected void body() {
+                try {
+                    idx.rebuildIndexes(space, desc);
+
+                    fut.onDone();
+                }
+                catch (Exception e) {
+                    fut.onDone(e);
+                }
+                catch (Throwable e) {
+                    log.error("Failed to rebuild indexes for type: " + desc.name(), e);
+
+                    fut.onDone(e);
+                }
+            }
+        };
+
+        fut.setWorker(w);
+
+        execSvc.execute(w);
+
+        return fut;
+    }
+
+    /**
+     * Rebuilds all search indexes for given spi.
+     *
+     * @return Future that will be completed when rebuilding of all indexes is finished.
+     */
+    @SuppressWarnings("unchecked")
+    public IgniteFuture<?> rebuildAllIndexes() {
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to get space size (grid is stopping).");
+
+        try {
+            GridCompoundFuture<?, ?> fut = new GridCompoundFuture<Object, Object>(ctx);
+
+            for (Map.Entry<TypeId, TypeDescriptor> e : types.entrySet())
+                fut.add((IgniteFuture)rebuildIndexes(e.getKey().space, e.getValue()));
+
+            fut.markInitialized();
+
+            return fut;
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Writes key-value pair to index.
+     *
+     * @param space Space.
+     * @param key Key.
+     * @param keyBytes Byte array with key data.
+     * @param val Value.
+     * @param valBytes Byte array with value data.
+     * @param ver Cache entry version.
+     * @param expirationTime Expiration time or 0 if never expires.
+     * @throws GridException In case of error.
+     */
+    @SuppressWarnings("unchecked")
+    public <K, V> void store(final String space, final K key, @Nullable byte[] keyBytes, final V val,
+        @Nullable byte[] valBytes, byte[] ver, long expirationTime) throws GridException {
+        assert key != null;
+        assert val != null;
+
+        ctx.indexing().store(space, key, val, expirationTime);
+
+        if (idx == null)
+            return;
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to write to index (grid is stopping).");
+
+        try {
+            if (log.isDebugEnabled())
+                log.debug("Storing key to cache query index [key=" + key + ", value=" + val + "]");
+
+            final Class<?> valCls = val.getClass();
+            final Class<?> keyCls = key.getClass();
+
+            TypeId id = null;
+
+            GridCacheQueryTypeResolver rslvr = typeResolvers.get(space);
+
+            if (rslvr != null) {
+                String typeName = rslvr.resolveTypeName(key, val);
+
+                if (typeName != null)
+                    id = new TypeId(space, ctx.portable().typeId(typeName));
+            }
+
+            if (id == null) {
+                if (val instanceof PortableObject) {
+                    PortableObject portable = (PortableObject)val;
+
+                    int typeId = portable.typeId();
+
+                    String typeName = portableName(typeId);
+
+                    if (typeName == null)
+                        return;
+
+                    id = new TypeId(space, typeId);
+                }
+                else
+                    id = new TypeId(space, valCls);
+            }
+
+            TypeDescriptor desc = types.get(id);
+
+            if (desc == null) {
+                desc = new TypeDescriptor();
+
+                TypeDescriptor existing = types.putIfAbsent(id, desc);
+
+                if (existing != null)
+                    desc = existing;
+            }
+
+            if (!desc.succeeded()) {
+                final TypeDescriptor d = desc;
+
+                d.init(new Callable<Void>() {
+                    @Override public Void call() throws Exception {
+                        d.keyClass(keyCls);
+                        d.valueClass(valCls);
+
+                        if (key instanceof PortableObject) {
+                            PortableObject portableKey = (PortableObject)key;
+
+                            String typeName = portableName(portableKey.typeId());
+
+                            if (typeName != null) {
+                                GridCacheQueryTypeMetadata keyMeta = declaredType(space, portableKey.typeId());
+
+                                if (keyMeta != null)
+                                    processPortableMeta(true, keyMeta, d);
+                            }
+                        }
+                        else {
+                            GridCacheQueryTypeMetadata keyMeta = declaredType(space, keyCls.getName());
+
+                            if (keyMeta == null)
+                                processAnnotationsInClass(true, d.keyCls, d, null);
+                            else
+                                processClassMeta(true, d.keyCls, keyMeta, d);
+                        }
+
+                        if (val instanceof PortableObject) {
+                            PortableObject portableVal = (PortableObject)val;
+
+                            String typeName = portableName(portableVal.typeId());
+
+                            if (typeName != null) {
+                                GridCacheQueryTypeMetadata valMeta = declaredType(space, portableVal.typeId());
+
+                                d.name(typeName);
+
+                                if (valMeta != null)
+                                    processPortableMeta(false, valMeta, d);
+                            }
+                        }
+                        else {
+                            String valTypeName = typeName(valCls);
+
+                            d.name(valTypeName);
+
+                            GridCacheQueryTypeMetadata typeMeta = declaredType(space, valCls.getName());
+
+                            if (typeMeta == null)
+                                processAnnotationsInClass(false, d.valCls, d, null);
+                            else
+                                processClassMeta(false, d.valCls, typeMeta, d);
+                        }
+
+                        d.registered(idx.registerType(space, d));
+
+                        typesByName.put(new TypeName(space, d.name()), d);
+
+                        return null;
+                    }
+                });
+            }
+
+            if (!desc.registered())
+                return;
+
+            if (!desc.valueClass().equals(valCls))
+                throw new GridException("Failed to update index due to class name conflict" +
+                    "(multiple classes with same simple name are stored in the same cache) " +
+                    "[expCls=" + desc.valueClass().getName() + ", actualCls=" + valCls.getName() + ']');
+
+            idx.store(space, desc, key, val, ver, expirationTime);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * @throws GridException If failed.
+     */
+    private void checkEnabled() throws GridException {
+        if (idx == null)
+            throw new GridException("Indexing is disabled.");
+    }
+
+    /**
+     * @param space Space.
+     * @param clause Clause.
+     * @param params Parameters collection.
+     * @param resType Result type.
+     * @param filters Filters.
+     * @return Key/value rows.
+     * @throws GridException If failed.
+     */
+    @SuppressWarnings("unchecked")
+    public <K, V> GridCloseableIterator<IgniteBiTuple<K, V>> query(String space, String clause,
+        Collection<Object> params, String resType, GridIndexingQueryFilter filters)
+        throws GridException {
+        checkEnabled();
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to execute query (grid is stopping).");
+
+        try {
+            TypeDescriptor type = typesByName.get(new TypeName(space, resType));
+
+            if (type == null || !type.registered())
+                return new GridEmptyCloseableIterator<>();
+
+            return idx.query(space, clause, params, type, filters);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * @param space Space.
+     * @param key Key.
+     * @throws GridException Thrown in case of any errors.
+     */
+    @SuppressWarnings("unchecked")
+    public void remove(String space, Object key) throws GridException {
+        assert key != null;
+
+        ctx.indexing().remove(space, key);
+
+        if (idx == null)
+            return;
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to remove from index (grid is stopping).");
+
+        try {
+            idx.remove(space, key);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Gets type name by class.
+     *
+     * @param cls Class.
+     * @return Type name.
+     */
+    public String typeName(Class<?> cls) {
+        String typeName = cls.getSimpleName();
+
+        // To protect from failure on anonymous classes.
+        if (F.isEmpty(typeName)) {
+            String pkg = cls.getPackage().getName();
+
+            typeName = cls.getName().substring(pkg.length() + (pkg.isEmpty() ? 0 : 1));
+        }
+
+        if (cls.isArray()) {
+            assert typeName.endsWith("[]");
+
+            typeName = typeName.substring(0, typeName.length() - 2) + "_array";
+        }
+
+        return typeName;
+    }
+
+    /**
+     * Gets portable type name by portable ID.
+     *
+     * @param typeId Type ID.
+     * @return Name.
+     */
+    private String portableName(int typeId) {
+        Map<Integer, String> portableIds = this.portableIds;
+
+        if (portableIds == null) {
+            portableIds = new HashMap<>();
+
+            for (GridCacheConfiguration ccfg : ctx.config().getCacheConfiguration()){
+                GridCacheQueryConfiguration qryCfg = ccfg.getQueryConfiguration();
+
+                if (qryCfg != null) {
+                    for (GridCacheQueryTypeMetadata meta : qryCfg.getTypeMetadata())
+                        portableIds.put(ctx.portable().typeId(meta.getType()), meta.getType());
+                }
+            }
+
+            this.portableIds = portableIds;
+        }
+
+        return portableIds.get(typeId);
+    }
+
+    /**
+     * @param space Space name.
+     * @param typeId Type ID.
+     * @return Type meta data if it was declared in configuration.
+     */
+    @Nullable private GridCacheQueryTypeMetadata declaredType(String space, int typeId) {
+        Map<TypeId, GridCacheQueryTypeMetadata> declaredTypesById = this.declaredTypesById;
+
+        if (declaredTypesById == null) {
+            declaredTypesById = new HashMap<>();
+
+            for (GridCacheConfiguration ccfg : ctx.config().getCacheConfiguration()){
+                GridCacheQueryConfiguration qryCfg = ccfg.getQueryConfiguration();
+
+                if (qryCfg != null) {
+                    for (GridCacheQueryTypeMetadata meta : qryCfg.getTypeMetadata())
+                        declaredTypesById.put(new TypeId(ccfg.getName(), ctx.portable().typeId(meta.getType())), meta);
+                }
+            }
+
+            this.declaredTypesById = declaredTypesById;
+        }
+
+        return declaredTypesById.get(new TypeId(space, typeId));
+    }
+
+    /**
+     * @param space Space name.
+     * @param typeName Type name.
+     * @return Type meta data if it was declared in configuration.
+     */
+    @Nullable private GridCacheQueryTypeMetadata declaredType(String space, String typeName) {
+        return declaredTypesByName.get(new TypeName(space, typeName));
+    }
+
+    /**
+     * @param space Space.
+     * @param clause Clause.
+     * @param resType Result type.
+     * @param filters Key and value filters.
+     * @param <K> Key type.
+     * @param <V> Value type.
+     * @return Key/value rows.
+     * @throws GridException If failed.
+     */
+    @SuppressWarnings("unchecked")
+    public <K, V> GridCloseableIterator<IgniteBiTuple<K, V>> queryText(String space, String clause, String resType,
+        GridIndexingQueryFilter filters) throws GridException {
+        checkEnabled();
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to execute query (grid is stopping).");
+
+        try {
+            TypeDescriptor type = typesByName.get(new TypeName(space, resType));
+
+            if (type == null || !type.registered())
+                return new GridEmptyCloseableIterator<>();
+
+            return idx.queryText(space, clause, type, filters);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * @param space Space name.
+     * @param clause Clause.
+     * @param params Parameters collection.
+     * @param filters Key and value filters.
+     * @return Field rows.
+     * @throws GridException If failed.
+     */
+    public <K, V> GridQueryFieldsResult queryFields(@Nullable String space, String clause, Collection<Object> params,
+        GridIndexingQueryFilter filters) throws GridException {
+        checkEnabled();
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to execute query (grid is stopping).");
+
+        try {
+            return idx.queryFields(space, clause, params, filters);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Will be called when entry for key will be swapped.
+     *
+     * @param spaceName Space name.
+     * @param key key.
+     * @throws GridException If failed.
+     */
+    public void onSwap(String spaceName, Object key) throws GridException {
+        ctx.indexing().onSwap(spaceName, key);
+
+        if (idx == null)
+            return;
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to process swap event (grid is stopping).");
+
+        try {
+            idx.onSwap(spaceName, key);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Will be called when entry for key will be unswapped.
+     *
+     * @param spaceName Space name.
+     * @param key Key.
+     * @param val Value.
+     * @param valBytes Value bytes.
+     * @throws GridException If failed.
+     */
+    public void onUnswap(String spaceName, Object key, Object val, byte[] valBytes)
+        throws GridException {
+        ctx.indexing().onUnswap(spaceName, key, val);
+
+        if (idx == null)
+            return;
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to process swap event (grid is stopping).");
+
+        try {
+            idx.onUnswap(spaceName, key, val, valBytes);
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Removes index tables for all classes belonging to given class loader.
+     *
+     * @param space Space name.
+     * @param ldr Class loader to undeploy.
+     * @throws GridException If undeploy failed.
+     */
+    public void onUndeploy(@Nullable String space, ClassLoader ldr) throws GridException {
+        if (idx == null)
+            return;
+
+        if (!busyLock.enterBusy())
+            throw new IllegalStateException("Failed to process undeploy event (grid is stopping).");
+
+        try {
+            Iterator<Map.Entry<TypeId, TypeDescriptor>> it = types.entrySet().iterator();
+
+            while (it.hasNext()) {
+                Map.Entry<TypeId, TypeDescriptor> e = it.next();
+
+                if (!F.eq(e.getKey().space, space))
+                    continue;
+
+                TypeDescriptor desc = e.getValue();
+
+                if (ldr.equals(U.detectClassLoader(desc.valCls)) || ldr.equals(U.detectClassLoader(desc.keyCls))) {
+                    idx.unregisterType(e.getKey().space, desc);
+
+                    it.remove();
+                }
+            }
+        }
+        finally {
+            busyLock.leaveBusy();
+        }
+    }
+
+    /**
+     * Process annotations for class.
+     *
+     * @param key If given class relates to key.
+     * @param cls Class.
+     * @param type Type descriptor.
+     * @param parent Parent in case of embeddable.
+     * @throws GridException In case of error.
+     */
+    static void processAnnotationsInClass(boolean key, Class<?> cls, TypeDescriptor type,
+        @Nullable ClassProperty parent) throws GridException {
+        if (U.isJdk(cls))
+            return;
+
+        if (parent != null && parent.knowsClass(cls))
+            throw new GridException("Recursive reference found in type: " + cls.getName());
+
+        if (parent == null) { // Check class annotation at top level only.
+            GridCacheQueryTextField txtAnnCls = cls.getAnnotation(GridCacheQueryTextField.class);
+
+            if (txtAnnCls != null)
+                type.valueTextIndex(true);
+
+            GridCacheQueryGroupIndex grpIdx = cls.getAnnotation(GridCacheQueryGroupIndex.class);
+
+            if (grpIdx != null)
+                type.addIndex(grpIdx.name(), SORTED);
+
+            GridCacheQueryGroupIndex.List grpIdxList = cls.getAnnotation(GridCacheQueryGroupIndex.List.class);
+
+            if (grpIdxList != null && !F.isEmpty(grpIdxList.value())) {
+                for (GridCacheQueryGroupIndex idx : grpIdxList.value())
+                    type.addIndex(idx.name(), SORTED);
+            }
+        }
+
+        for (Class<?> c = cls; c != null && !c.equals(Object.class); c = c.getSuperclass()) {
+            for (Field field : c.getDeclaredFields()) {
+                GridCacheQuerySqlField sqlAnn = field.getAnnotation(GridCacheQuerySqlField.class);
+                GridCacheQueryTextField txtAnn = field.getAnnotation(GridCacheQueryTextField.class);
+
+                if (sqlAnn != null || txtAnn != null) {
+                    ClassProperty prop = new ClassProperty(field);
+
+                    prop.parent(parent);
+
+                    processAnnotation(key, sqlAnn, txtAnn, field.getType(), prop, type);
+
+                    type.addProperty(key, prop, true);
+                }
+            }
+
+            for (Method mtd : c.getDeclaredMethods()) {
+                GridCacheQuerySqlField sqlAnn = mtd.getAnnotation(GridCacheQuerySqlField.class);
+                GridCacheQueryTextField txtAnn = mtd.getAnnotation(GridCacheQueryTextField.class);
+
+                if (sqlAnn != null || txtAnn != null) {
+                    if (mtd.getParameterTypes().length != 0)
+                        throw new GridException("Getter with GridCacheQuerySqlField " +
+                            "annotation cannot have parameters: " + mtd);
+
+                    ClassProperty prop = new ClassProperty(mtd);
+
+                    prop.parent(parent);
+
+                    processAnnotation(key, sqlAnn, txtAnn, mtd.getReturnType(), prop, type);
+
+                    type.addProperty(key, prop, true);
+                }
+            }
+        }
+    }
+
+    /**
+     * Processes annotation at field or method.
+     *
+     * @param key If given class relates to key.
+     * @param sqlAnn SQL annotation, can be {@code null}.
+     * @param txtAnn H2 text annotation, can be {@code null}.
+     * @param cls Class of field or return type for method.
+     * @param prop Current property.
+     * @param desc Class description.
+     * @throws GridException In case of error.
+     */
+    static void processAnnotation(boolean key, GridCacheQuerySqlField sqlAnn, GridCacheQueryTextField txtAnn,
+        Class<?> cls, ClassProperty prop, TypeDescriptor desc) throws GridException {
+        if (sqlAnn != null) {
+            processAnnotationsInClass(key, cls, desc, prop);
+
+            if (!sqlAnn.name().isEmpty())
+                prop.name(sqlAnn.name());
+
+            if (sqlAnn.index() || sqlAnn.unique()) {
+                String idxName = prop.name() + "_idx";
+
+                desc.addIndex(idxName, isGeometryClass(prop.type()) ? GEO_SPATIAL : SORTED);
+
+                desc.addFieldToIndex(idxName, prop.name(), 0, sqlAnn.descending());
+            }
+
+            if (!F.isEmpty(sqlAnn.groups())) {
+                for (String group : sqlAnn.groups())
+                    desc.addFieldToIndex(group, prop.name(), 0, false);
+            }
+
+            if (!F.isEmpty(sqlAnn.orderedGroups())) {
+                for (GridCacheQuerySqlField.Group idx : sqlAnn.orderedGroups())
+                    desc.addFieldToIndex(idx.name(), prop.name(), idx.order(), idx.descending());
+            }
+        }
+
+        if (txtAnn != null)
+            desc.addFieldToTextIndex(prop.name());
+    }
+
+    /**
+     * Processes declarative metadata for class.
+     *
+     * @param key Key or value flag.
+     * @param cls Class to process.
+     * @param meta Type metadata.
+     * @param d Type descriptor.
+     * @throws GridException If failed.
+     */
+    static void processClassMeta(boolean key, Class<?> cls, GridCacheQueryTypeMetadata meta, TypeDescriptor d)
+        throws GridException {
+        for (Map.Entry<String, Class<?>> entry : meta.getAscendingFields().entrySet()) {
+            ClassProperty prop = buildClassProperty(cls, entry.getKey(), entry.getValue());
+
+            d.addProperty(key, prop, false);
+
+            String idxName = prop.name() + "_idx";
+
+            d.addIndex(idxName, isGeometryClass(prop.type()) ? GEO_SPATIAL : SORTED);
+
+            d.addFieldToIndex(idxName, prop.name(), 0, false);
+        }
+
+        for (Map.Entry<String, Class<?>> entry : meta.getDescendingFields().entrySet()) {
+            ClassProperty prop = buildClassProperty(cls, entry.getKey(), entry.getValue());
+
+            d.addProperty(key, prop, false);
+
+            String idxName = prop.name() + "_idx";
+
+            d.addIndex(idxName, isGeometryClass(prop.type()) ? GEO_SPATIAL : SORTED);
+
+            d.addFieldToIndex(idxName, prop.name(), 0, true);
+        }
+
+        for (String txtIdx : meta.getTextFields()) {
+            ClassProperty prop = buildClassProperty(cls, txtIdx, String.class);
+
+            d.addProperty(key, prop, false);
+
+            d.addFieldToTextIndex(prop.name());
+        }
+
+        Map<String, LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>>> grps = meta.getGroups();
+
+        if (grps != null) {
+            for (Map.Entry<String, LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>>> entry : grps.entrySet()) {
+                String idxName = entry.getKey();
+
+                LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>> idxFields = entry.getValue();
+
+                int order = 0;
+
+                for (Map.Entry<String, IgniteBiTuple<Class<?>, Boolean>> idxField : idxFields.entrySet()) {
+                    ClassProperty prop = buildClassProperty(cls, idxField.getKey(), idxField.getValue().get1());
+
+                    d.addProperty(key, prop, false);
+
+                    Boolean descending = idxField.getValue().get2();
+
+                    d.addFieldToIndex(idxName, prop.name(), order, descending != null && descending);
+
+                    order++;
+                }
+            }
+        }
+
+        for (Map.Entry<String, Class<?>> entry : meta.getQueryFields().entrySet()) {
+            ClassProperty prop = buildClassProperty(cls, entry.getKey(), entry.getValue());
+
+            d.addProperty(key, prop, false);
+        }
+    }
+
+    /**
+     * Processes declarative metadata for portable object.
+     *
+     * @param key Key or value flag.
+     * @param meta Declared metadata.
+     * @param d Type descriptor.
+     * @throws GridException If failed.
+     */
+    static void processPortableMeta(boolean key, GridCacheQueryTypeMetadata meta, TypeDescriptor d)
+        throws GridException {
+        for (Map.Entry<String, Class<?>> entry : meta.getAscendingFields().entrySet()) {
+            PortableProperty prop = buildPortableProperty(entry.getKey(), entry.getValue());
+
+            d.addProperty(key, prop, false);
+
+            String idxName = prop.name() + "_idx";
+
+            d.addIndex(idxName, isGeometryClass(prop.type()) ? GEO_SPATIAL : SORTED);
+
+            d.addFieldToIndex(idxName, prop.name(), 0, false);
+        }
+
+        for (Map.Entry<String, Class<?>> entry : meta.getDescendingFields().entrySet()) {
+            PortableProperty prop = buildPortableProperty(entry.getKey(), entry.getValue());
+
+            d.addProperty(key, prop, false);
+
+            String idxName = prop.name() + "_idx";
+
+            d.addIndex(idxName, isGeometryClass(prop.type()) ? GEO_SPATIAL : SORTED);
+
+            d.addFieldToIndex(idxName, prop.name(), 0, true);
+        }
+
+        for (String txtIdx : meta.getTextFields()) {
+            PortableProperty prop = buildPortableProperty(txtIdx, String.class);
+
+            d.addProperty(key, prop, false);
+
+            d.addFieldToTextIndex(prop.name());
+        }
+
+        Map<String, LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>>> grps = meta.getGroups();
+
+        if (grps != null) {
+            for (Map.Entry<String, LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>>> entry : grps.entrySet()) {
+                String idxName = entry.getKey();
+
+                LinkedHashMap<String, IgniteBiTuple<Class<?>, Boolean>> idxFields = entry.getValue();
+
+                int order = 0;
+
+                for (Map.Entry<String, IgniteBiTuple<Class<?>, Boolean>> idxField : idxFields.entrySet()) {
+                    PortableProperty prop = buildPortableProperty(idxField.getKey(), idxField.getValue().get1());
+
+                    d.addProperty(key, prop, false);
+
+                    Boolean descending = idxField.getValue().get2();
+
+                    d.addFieldToIndex(idxName, prop.name(), order, descending != null && descending);
+
+                    order++;
+                }
+            }
+        }
+
+        for (Map.Entry<String, Class<?>> entry : meta.getQueryFields().entrySet()) {
+            PortableProperty prop = buildPortableProperty(entry.getKey(), entry.getValue());
+
+            if (!d.props.containsKey(prop.name()))
+                d.addProperty(key, prop, false);
+        }
+    }
+
+    /**
+     * Builds portable object property.
+     *
+     * @param pathStr String representing path to the property. May contains dots '.' to identify
+     *      nested fields.
+     * @param resType Result type.
+     * @return Portable property.
+     */
+    static PortableProperty buildPortableProperty(String pathStr, Class<?> resType) {
+        String[] path = pathStr.split("\\.");
+
+        PortableProperty res = null;
+
+        for (String prop : path)
+            res = new PortableProperty(prop, res, resType);
+
+        return res;
+    }
+
+    /**
+     * @param cls Source type class.
+     * @param pathStr String representing path to the property. May contains dots '.' to identify nested fields.
+     * @param resType Expected result type.
+     * @return Property instance corresponding to the given path.
+     * @throws GridException If property cannot be created.
+     */
+    static ClassProperty buildClassProperty(Class<?> cls, String pathStr, Class<?> resType) throws GridException {
+        String[] path = pathStr.split("\\.");
+
+        ClassProperty res = null;
+
+        for (String prop : path) {
+            ClassProperty tmp;
+
+            try {
+                StringBuilder bld = new StringBuilder("get");
+
+                bld.append(prop);
+
+                bld.setCharAt(3, Character.toUpperCase(bld.charAt(3)));
+
+                tmp = new ClassProperty(cls.getMethod(bld.toString()));
+            }
+            catch (NoSuchMethodException ignore) {
+                try {
+                    tmp = new ClassProperty(cls.getDeclaredField(prop));
+                }
+                catch (NoSuchFieldException ignored) {
+                    throw new GridException("Failed to find getter method or field for property named " +
+                        "'" + prop + "': " + cls.getName());
+                }
+            }
+
+            tmp.parent(res);
+
+            cls = tmp.type();
+
+            res = tmp;
+        }
+
+        if (!U.box(resType).isAssignableFrom(U.box(res.type())))
+            throw new GridException("Failed to create property for given path (actual property type is not assignable" +
+                " to declared type [path=" + pathStr + ", actualType=" + res.type().getName() +
+                ", declaredType=" + resType.getName() + ']');
+
+        return res;
+    }
+
+    /**
+     * Gets types for space.
+     *
+     * @param space Space name.
+     * @return Descriptors.
+     */
+    public Collection<GridQueryTypeDescriptor> types(@Nullable String space) {
+        Collection<GridQueryTypeDescriptor> spaceTypes = new ArrayList<>(
+            Math.min(10, types.size()));
+
+        for (Map.Entry<TypeId, TypeDescriptor> e : types.entrySet()) {
+            TypeDescriptor desc = e.getValue();
+
+            if (desc.registered() && F.eq(e.getKey().space, space))
+                spaceTypes.add(desc);
+        }
+
+        return spaceTypes;
+    }
+
+    /**
+     * Gets type for space and type name.
+     *
+     * @param space Space name.
+     * @param typeName Type name.
+     * @return Type.
+     * @throws GridException If failed.
+     */
+    public GridQueryTypeDescriptor type(@Nullable String space, String typeName) throws GridException {
+        TypeDescriptor type = typesByName.get(new TypeName(space, typeName));
+
+        if (type == null || !type.registered())
+            throw new GridException("Failed to find type descriptor for type name: " + typeName);
+
+        return type;
+    }
+
+    /**
+     * @param cls Field type.
+     * @return {@code True} if given type is a spatial geometry type based on {@code com.vividsolutions.jts} library.
+     * @throws GridException If failed.
+     */
+    private static boolean isGeometryClass(Class<?> cls) throws GridException { // TODO optimize
+        Class<?> dataTypeCls;
+
+        try {
+            dataTypeCls = Class.forName("org.h2.value.DataType");
+        }
+        catch (ClassNotFoundException ignored) {
+            return false; // H2 is not in classpath.
+        }
+
+        try {
+            Method method = dataTypeCls.getMethod("isGeometryClass", Class.class);
+
+            return (Boolean)method.invoke(null, cls);
+        }
+        catch (Exception e) {
+            throw new GridException("Failed to invoke 'org.h2.value.DataType.isGeometryClass' method.", e);
+        }
+    }
+
+    /**
+     *
+     */
+    private abstract static class Property {
+        /**
+         * Gets this property value from the given object.
+         *
+         * @param x Object with this property.
+         * @return Property value.
+         * @throws GridException If failed.
+         */
+        public abstract Object value(Object x) throws GridException;
+
+        /**
+         * @return Property name.
+         */
+        public abstract String name();
+
+        /**
+         * @return Class member type.
+         */
+        public abstract Class<?> type();
+    }
+
+    /**
+     * Description of type property.
+     */
+    private static class ClassProperty extends Property {
+        /** */
+        private final Member member;
+
+        /** */
+        private ClassProperty parent;
+
+        /** */
+        private String name;
+
+        /** */
+        private boolean field;
+
+        /**
+         * Constructor.
+         *
+         * @param member Element.
+         */
+        ClassProperty(Member member) {
+            this.member = member;
+
+            name = member instanceof Method && member.getName().startsWith("get") && member.getName().length() > 3 ?
+                member.getName().substring(3) : member.getName();
+
+            ((AccessibleObject) member).setAccessible(true);
+
+            field = member instanceof Field;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Object value(Object x) throws GridException {
+            if (parent != null)
+                x = parent.value(x);
+
+            if (x == null)
+                return null;
+
+            try {
+                if (field) {
+                    Field field = (Field)member;
+
+                    return field.get(x);
+                }
+                else {
+                    Method mtd = (Method)member;
+
+                    return mtd.invoke(x);
+                }
+            }
+            catch (Exception e) {
+                throw new GridException(e);
+            }
+        }
+
+        /**
+         * @param name Property name.
+         */
+        public void name(String name) {
+            this.name = name;
+        }
+
+        /** {@inheritDoc} */
+        @Override public String name() {
+            return name;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Class<?> type() {
+            return member instanceof Field ? ((Field)member).getType() : ((Method)member).getReturnType();
+        }
+
+        /**
+         * @param parent Parent property if this is embeddable element.
+         */
+        public void parent(ClassProperty parent) {
+            this.parent = parent;
+        }
+
+        /** {@inheritDoc} */
+        @Override public String toString() {
+            return S.toString(ClassProperty.class, this);
+        }
+
+        /**
+         * @param cls Class.
+         * @return {@code true} If this property or some parent relates to member of the given class.
+         */
+        public boolean knowsClass(Class<?> cls) {
+            return member.getDeclaringClass() == cls || (parent != null && parent.knowsClass(cls));
+        }
+    }
+
+    /**
+     *
+     */
+    private static class PortableProperty extends Property {
+        /** Property name. */
+        private String propName;
+
+        /** Parent property. */
+        private PortableProperty parent;
+
+        /** Result class. */
+        private Class<?> type;
+
+        /**
+         * Constructor.
+         *
+         * @param propName Property name.
+         * @param parent Parent property.
+         * @param type Result type.
+         */
+        private PortableProperty(String propName, PortableProperty parent, Class<?> type) {
+            this.propName = propName;
+            this.parent = parent;
+            this.type = type;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Object value(Object obj) throws GridException {
+            if (parent != null)
+                obj = parent.value(obj);
+
+            if (obj == null)
+                return null;
+
+            if (!(obj instanceof PortableObject))
+                throw new GridException("Non-portable object received as a result of property extraction " +
+                    "[parent=" + parent + ", propName=" + propName + ", obj=" + obj + ']');
+
+            return ((PortableObject)obj).field(propName);
+        }
+
+        /** {@inheritDoc} */
+        @Override public String name() {
+            return propName;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Class<?> type() {
+            return type;
+        }
+    }
+
+    /**
+     * Descriptor of type.
+     */
+    private static class TypeDescriptor implements GridQueryTypeDescriptor {
+        /** */
+        private String name;
+
+        /** Value field names and types with preserved order. */
+        @GridToStringInclude
+        private final Map<String, Class<?>> valFields = new LinkedHashMap<>();
+
+        /** */
+        @GridToStringExclude
+        private final Map<String, Property> props = new HashMap<>();
+
+        /** Key field names and types with preserved order. */
+        @GridToStringInclude
+        private final Map<String, Class<?>> keyFields = new LinkedHashMap<>();
+
+        /** */
+        @GridToStringInclude
+        private final Map<String, IndexDescriptor> indexes = new HashMap<>();
+
+        /** */
+        private IndexDescriptor fullTextIdx;
+
+        /** */
+        private Class<?> keyCls;
+
+        /** */
+        private Class<?> valCls;
+
+        /** */
+        private boolean valTextIdx;
+
+        /** To ensure that type was registered in SPI and only once. */
+        private final GridAtomicInitializer<Void> initializer = new GridAtomicInitializer<>();
+
+        /** SPI can decide not to register this type. */
+        private boolean registered;
+
+        /**
+         * @param c Initialization callable.
+         * @throws GridException In case of error.
+         */
+        void init(Callable<Void> c) throws GridException {
+            initializer.init(c);
+        }
+
+        /**
+         * @return Waits for initialization.
+         * @throws GridInterruptedException If thread is interrupted.
+         */
+        boolean await() throws GridInterruptedException {
+            return initializer.await();
+        }
+
+        /**
+         * @return Whether initialization was successfully completed.
+         */
+        boolean succeeded() {
+            return initializer.succeeded();
+        }
+
+        /**
+         * @return {@code True} if type registration in SPI was finished and type was not rejected.
+         */
+        boolean registered() {
+            return initializer.succeeded() && registered;
+        }
+
+        /**
+         * @param registered Sets registered flag.
+         */
+        void registered(boolean registered) {
+            this.registered = registered;
+        }
+
+        /** {@inheritDoc} */
+        @Override public String name() {
+            return name;
+        }
+
+        /**
+         * Sets type name.
+         *
+         * @param name Name.
+         */
+        void name(String name) {
+            this.name = name;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Map<String, Class<?>> valueFields() {
+            return valFields;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Map<String, Class<?>> keyFields() {
+            return keyFields;
+        }
+
+        /** {@inheritDoc} */
+        @Override public <T> T value(Object obj, String field) throws GridException {
+            assert obj != null;
+            assert field != null;
+
+            Property prop = props.get(field);
+
+            if (prop == null)
+                throw new GridException("Failed to find field '" + field + "' in type '" + name + "'.");
+
+            return (T)prop.value(obj);
+        }
+
+        /** {@inheritDoc} */
+        @Override public Map<String, GridQueryIndexDescriptor> indexes() {
+            return Collections.<String, GridQueryIndexDescriptor>unmodifiableMap(indexes);
+        }
+
+        /**
+         * Adds index.
+         *
+         * @param idxName Index name.
+         * @param type Index type.
+         * @return Index descriptor.
+         * @throws GridException In case of error.
+         */
+        public IndexDescriptor addIndex(String idxName, GridQueryIndexType type) throws GridException {
+            IndexDescriptor idx = new IndexDescriptor(type);
+
+            if (indexes.put(idxName, idx) != null)
+                throw new GridException("Index with name '" + idxName + "' already exists.");
+
+            return idx;
+        }
+
+        /**
+         * Adds field to index.
+         *
+         * @param idxName Index name.
+         * @param field Field name.
+         * @param orderNum Fields order number in index.
+         * @param descending Sorting order.
+         * @throws GridException If failed.
+         */
+        public void addFieldToIndex(String idxName, String field, int orderNum,
+            boolean descending) throws GridException {
+            IndexDescriptor desc = indexes.get(idxName);
+
+            if (desc == null)
+                desc = addIndex(idxName, SORTED);
+
+            desc.addField(field, orderNum, descending);
+        }
+
+        /**
+         * Adds field to text index.
+         *
+         * @param field Field name.
+         */
+        public void addFieldToTextIndex(String field) {
+            if (fullTextIdx == null) {
+                fullTextIdx = new IndexDescriptor(FULLTEXT);
+
+                indexes.put(null, fullTextIdx);
+            }
+
+            fullTextIdx.addField(field, 0, false);
+        }
+
+        /** {@inheritDoc} */
+        @Override public Class<?> valueClass() {
+            return valCls;
+        }
+
+        /**
+         * Sets value class.
+         *
+         * @param valCls Value class.
+         */
+        void valueClass(Class<?> valCls) {
+            this.valCls = valCls;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Class<?> keyClass() {
+            return keyCls;
+        }
+
+        /**
+         * Set key class.
+         *
+         * @param keyCls Key class.
+         */
+        void keyClass(Class<?> keyCls) {
+            this.keyCls = keyCls;
+        }
+
+        /**
+         * Adds property to the type descriptor.
+         *
+         * @param key If given property relates to key.
+         * @param prop Property.
+         * @param failOnDuplicate Fail on duplicate flag.
+         * @throws GridException In case of error.
+         */
+        public void addProperty(boolean key, Property prop, boolean failOnDuplicate) throws GridException {
+            String name = prop.name();
+
+            if (props.put(name, prop) != null && failOnDuplicate)
+                throw new GridException("Property with name '" + name + "' already exists.");
+
+            if (key)
+                keyFields.put(name, prop.type());
+            else
+                valFields.put(name, prop.type());
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean valueTextIndex() {
+            return valTextIdx;
+        }
+
+        /**
+         * Sets if this value should be text indexed.
+         *
+         * @param valTextIdx Flag value.
+         */
+        public void valueTextIndex(boolean valTextIdx) {
+            this.valTextIdx = valTextIdx;
+        }
+
+        /** {@inheritDoc} */
+        @Override public String toString() {
+            return S.toString(TypeDescriptor.class, this);
+        }
+    }
+
+    /**
+     * Index descriptor.
+     */
+    private static class IndexDescriptor implements GridQueryIndexDescriptor {
+        /** Fields sorted by order number. */
+        private final Collection<T2<String, Integer>> fields = new TreeSet<>(
+            new Comparator<T2<String, Integer>>() {
+                @Override public int compare(T2<String, Integer> o1, T2<String, Integer> o2) {
+                    if (o1.get2().equals(o2.get2())) // Order is equal, compare field names to avoid replace in Set.
+                        return o1.get1().compareTo(o2.get1());
+
+                    return o1.get2() < o2.get2() ? -1 : 1;
+                }
+            });
+
+        /** Fields which should be indexed in descending order. */
+        private Collection<String> descendings;
+
+        /** */
+        private final GridQueryIndexType type;
+
+        /**
+         * @param type Type.
+         */
+        private IndexDescriptor(GridQueryIndexType type) {
+            assert type != null;
+
+            this.type = type;
+        }
+
+        /** {@inheritDoc} */
+        @Override public Collection<String> fields() {
+            Collection<String> res = new ArrayList<>(fields.size());
+
+            for (T2<String, Integer> t : fields)
+                res.add(t.get1());
+
+            return res;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean descending(String field) {
+            return descendings != null && descendings.contains(field);
+        }
+
+        /**
+         * Adds field to this index.
+         *
+         * @param field Field name.
+         * @param orderNum Field order number in this index.
+         * @param descending Sort order.
+         */
+        public void addField(String field, int orderNum, boolean descending) {
+            fields.add(new T2<>(field, orderNum));
+
+            if (descending) {
+                if (descendings == null)
+                    descendings  = new HashSet<>();
+
+                descendings.add(field);
+            }
+        }
+
+        /** {@inheritDoc} */
+        @Override public GridQueryIndexType type() {
+            return type;
+        }
+
+        /** {@inheritDoc} */
+        @Override public String toString() {
+            return S.toString(IndexDescriptor.class, this);
+        }
+    }
+
+    /**
+     * Identifying TypeDescriptor by space and value class.
+     */
+    private static class TypeId {
+        /** */
+        private final String space;
+
+        /** Value type. */
+        private final Class<?> valType;
+
+        /** Value type ID. */
+        private final int valTypeId;
+
+        /**
+         * Constructor.
+         *
+         * @param space Space name.
+         * @param valType Value type.
+         */
+        private TypeId(String space, Class<?> valType) {
+            assert valType != null;
+
+            this.space = space;
+            this.valType = valType;
+
+            valTypeId = 0;
+        }
+
+        /**
+         * Constructor.
+         *
+         * @param space Space name.
+         * @param valTypeId Value type ID.
+         */
+        private TypeId(String space, int valTypeId) {
+            this.space = space;
+            this.valTypeId = valTypeId;
+
+            valType = null;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean equals(Object o) {
+            if (this == o)
+                return true;
+
+            if (o == null || getClass() != o.getClass())
+                return false;
+
+            TypeId typeId = (TypeId)o;
+
+            return (valTypeId == typeId.valTypeId) &&
+                (valType != null ? valType == typeId.valType : typeId.valType == null) &&
+                (space != null ? space.equals(typeId.space) : typeId.space == null);
+        }
+
+        /** {@inheritDoc} */
+        @Override public int hashCode() {
+            return 31 * (space != null ? space.hashCode() : 0) + (valType != null ? valType.hashCode() : valTypeId);
+        }
+
+        /** {@inheritDoc} */
+        @Override public String toString() {
+            return S.toString(TypeId.class, this);
+        }
+    }
+
+    /**
+     *
+     */
+    private static class TypeName {
+        /** */
+        private final String space;
+
+        /** */
+        private final String typeName;
+
+        /**
+         * @param space Space name.
+         * @param typeName Type name.
+         */
+        private TypeName(@Nullable String space, String typeName) {
+            assert !F.isEmpty(typeName) : typeName;
+
+            this.space = space;
+            this.typeName = typeName;
+        }
+
+        /** {@inheritDoc} */
+        @Override public boolean equals(Object o) {
+            if (this == o)
+                return true;
+
+            if (o == null || getClass() != o.getClass())
+                return false;
+
+            TypeName other = (TypeName)o;
+
+            return (space != null ? space.equals(other.space) : other.space == null) &&
+                typeName.equals(other.typeName);
+        }
+
+        /** {@inheritDoc} */
+        @Override public int hashCode() {
+            return 31 * (space != null ? space.hashCode() : 0) + typeName.hashCode();
+        }
+
+        /** {@inheritDoc} */
+        @Override public String toString() {
+            return S.toString(TypeName.class, this);
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryTypeDescriptor.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryTypeDescriptor.java b/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryTypeDescriptor.java
new file mode 100644
index 0000000..d835349
--- /dev/null
+++ b/modules/core/src/main/java/org/gridgain/grid/kernal/processors/query/GridQueryTypeDescriptor.java
@@ -0,0 +1,79 @@
+/* @java.file.header */
+
+/*  _________        _____ __________________        _____
+ *  __  ____/___________(_)______  /__  ____/______ ____(_)_______
+ *  _  / __  __  ___/__  / _  __  / _  / __  _  __ `/__  / __  __ \
+ *  / /_/ /  _  /    _  /  / /_/ /  / /_/ /  / /_/ / _  /  _  / / /
+ *  \____/   /_/     /_/   \_,__/   \____/   \__,_/  /_/   /_/ /_/
+ */
+
+package org.gridgain.grid.kernal.processors.query;
+
+
+import org.gridgain.grid.*;
+
+import java.util.*;
+
+/**
+ * Value descriptor which allows to extract fields from value object of given type.
+ */
+public interface GridQueryTypeDescriptor {
+    /**
+     * Gets type name which uniquely identifies this type.
+     *
+     * @return Type name which uniquely identifies this type.
+     */
+    public String name();
+
+    /**
+     * Gets mapping from values field name to its type.
+     *
+     * @return Fields that can be indexed, participate in queries and can be queried using method.
+     */
+    public Map<String, Class<?>> valueFields();
+
+    /**
+     * Gets mapping from keys field name to its type.
+     *
+     * @return Fields that can be indexed, participate in queries and can be queried.
+     */
+    public Map<String, Class<?>> keyFields();
+
+    /**
+     * Gets field value for given object.
+     *
+     * @param obj Object to get field value from.
+     * @param field Field name.
+     * @return Value for given field.
+     * @throws GridException If failed.
+     */
+    public <T> T value(Object obj, String field) throws GridException;
+
+    /**
+     * Gets indexes for this type.
+     *
+     * @return Indexes for this type.
+     */
+    public Map<String, GridQueryIndexDescriptor> indexes();
+
+    /**
+     * Gets value class.
+     *
+     * @return Value class.
+     */
+    public Class<?> valueClass();
+
+    /**
+     * Gets key class.
+     *
+     * @return Key class.
+     */
+    public Class<?> keyClass();
+
+    /**
+     * Returns {@code true} if string representation of value should be indexed as text.
+     *
+     * @return If string representation of value should be full-text indexed.
+     */
+    public boolean valueTextIndex();
+}

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/main/java/org/gridgain/grid/kernal/visor/node/VisorSpisConfiguration.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/gridgain/grid/kernal/visor/node/VisorSpisConfiguration.java b/modules/core/src/main/java/org/gridgain/grid/kernal/visor/node/VisorSpisConfiguration.java
index 8a6b1b5..4bb65c7 100644
--- a/modules/core/src/main/java/org/gridgain/grid/kernal/visor/node/VisorSpisConfiguration.java
+++ b/modules/core/src/main/java/org/gridgain/grid/kernal/visor/node/VisorSpisConfiguration.java
@@ -315,7 +315,7 @@ public class VisorSpisConfiguration implements Serializable {
     /**
      * @param indexingSpis New indexing SPIs.
      */
-    public void indexingSpis(IgniteBiTuple<String, Map<String, Object>>[] indexingSpis) {
+    public void indexingSpis(IgniteBiTuple<String, Map<String, Object>>... indexingSpis) {
         this.indexingSpis = indexingSpis;
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/main/java/org/gridgain/grid/kernal/visor/query/VisorQueryTask.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/gridgain/grid/kernal/visor/query/VisorQueryTask.java b/modules/core/src/main/java/org/gridgain/grid/kernal/visor/query/VisorQueryTask.java
index 87ce34b..f575969 100644
--- a/modules/core/src/main/java/org/gridgain/grid/kernal/visor/query/VisorQueryTask.java
+++ b/modules/core/src/main/java/org/gridgain/grid/kernal/visor/query/VisorQueryTask.java
@@ -15,11 +15,11 @@ import org.gridgain.grid.cache.GridCache;
 import org.gridgain.grid.cache.query.GridCacheQueryFuture;
 import org.gridgain.grid.kernal.GridKernal;
 import org.gridgain.grid.kernal.processors.cache.query.*;
+import org.gridgain.grid.kernal.processors.query.*;
 import org.gridgain.grid.kernal.processors.task.GridInternal;
 import org.gridgain.grid.kernal.processors.timeout.GridTimeoutObjectAdapter;
 import org.gridgain.grid.kernal.visor.*;
 import org.apache.ignite.lang.IgniteBiTuple;
-import org.apache.ignite.spi.indexing.IndexingFieldMetadata;
 import org.gridgain.grid.util.typedef.internal.*;
 
 import java.io.*;
@@ -220,7 +220,7 @@ public class VisorQueryTask extends VisorOneNodeTask<VisorQueryTask.VisorQueryAr
 
                     List<Object> firstRow = (List<Object>)fut.next();
 
-                    List<IndexingFieldMetadata> meta = ((GridCacheQueryMetadataAware)fut).metadata().get();
+                    List<GridQueryFieldMetadata> meta = ((GridCacheQueryMetadataAware)fut).metadata().get();
 
                     if (meta == null)
                         return new IgniteBiTuple<Exception, VisorQueryResultEx>(
@@ -229,7 +229,7 @@ public class VisorQueryTask extends VisorOneNodeTask<VisorQueryTask.VisorQueryAr
                         VisorQueryField[] names = new VisorQueryField[meta.size()];
 
                         for (int i = 0; i < meta.size(); i++) {
-                            IndexingFieldMetadata col = meta.get(i);
+                            GridQueryFieldMetadata col = meta.get(i);
 
                             names[i] = new VisorQueryField(col.typeName(), col.fieldName());
                         }

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/main/java/org/gridgain/grid/util/GridUtils.java
----------------------------------------------------------------------
diff --git a/modules/core/src/main/java/org/gridgain/grid/util/GridUtils.java b/modules/core/src/main/java/org/gridgain/grid/util/GridUtils.java
index cced666..bdc4c3e 100644
--- a/modules/core/src/main/java/org/gridgain/grid/util/GridUtils.java
+++ b/modules/core/src/main/java/org/gridgain/grid/util/GridUtils.java
@@ -967,6 +967,26 @@ public abstract class GridUtils {
     /**
      * Creates new instance of a class only if it has an empty constructor (can be non-public).
      *
+     * @param cls Class name.
+     * @return Instance.
+     * @throws GridException If failed.
+     */
+    @Nullable public static <T> T newInstance(String cls) throws GridException {
+        Class<?> cls0;
+
+        try {
+            cls0 = Class.forName(cls);
+        }
+        catch (Exception e) {
+            throw new GridException(e);
+        }
+
+        return (T)newInstance(cls0);
+    }
+
+    /**
+     * Creates new instance of a class only if it has an empty constructor (can be non-public).
+     *
      * @param cls Class to instantiate.
      * @return New instance of the class or {@code null} if empty constructor could not be assigned.
      * @throws GridException If failed.

http://git-wip-us.apache.org/repos/asf/incubator-ignite/blob/922a2bab/modules/core/src/test/java/org/gridgain/grid/kernal/processors/cache/GridCacheTxExceptionAbstractSelfTest.java
----------------------------------------------------------------------
diff --git a/modules/core/src/test/java/org/gridgain/grid/kernal/processors/cache/GridCacheTxExceptionAbstractSelfTest.java b/modules/core/src/test/java/org/gridgain/grid/kernal/processors/cache/GridCacheTxExceptionAbstractSelfTest.java
index c156c86..0d4c750 100644
--- a/modules/core/src/test/java/org/gridgain/grid/kernal/processors/cache/GridCacheTxExceptionAbstractSelfTest.java
+++ b/modules/core/src/test/java/org/gridgain/grid/kernal/processors/cache/GridCacheTxExceptionAbstractSelfTest.java
@@ -571,7 +571,7 @@ public abstract class GridCacheTxExceptionAbstractSelfTest extends GridCacheAbst
     /**
      * Indexing SPI that can fail on demand.
      */
-    private static class TestIndexingSpi extends IgniteSpiAdapter implements IndexingSpi {
+    private static class TestIndexingSpi extends IgniteSpiAdapter implements GridIndexingSpi {
         /** Fail flag. */
         private volatile boolean fail;
 
@@ -583,63 +583,12 @@ public abstract class GridCacheTxExceptionAbstractSelfTest extends GridCacheAbst
         }
 
         /** {@inheritDoc} */
-        @Override public <K, V> IndexingFieldsResult queryFields(@Nullable String spaceName, String qry,
-            Collection<Object> params, IndexingQueryFilter filters) {
+        @Override public Iterator<?> query(@Nullable String spaceName, Collection<Object> params, @Nullable GridIndexingQueryFilter filters) throws IgniteSpiException {
             throw new UnsupportedOperationException();
         }
 
         /** {@inheritDoc} */
-        @Override public <K, V> IgniteSpiCloseableIterator<IndexingKeyValueRow<K, V>> query(
-            @Nullable String spaceName, String qry, Collection<Object> params, IndexingTypeDescriptor type,
-            IndexingQueryFilter filters) {
-            throw new UnsupportedOperationException();
-        }
-
-        /** {@inheritDoc} */
-        @Override public <K, V> IgniteSpiCloseableIterator<IndexingKeyValueRow<K, V>> queryText(
-            @Nullable String spaceName, String qry, IndexingTypeDescriptor type,
-            IndexingQueryFilter filters) {
-            throw new UnsupportedOperationException();
-        }
-
-        /** {@inheritDoc} */
-        @Override public long size(@Nullable String spaceName, IndexingTypeDescriptor desc) {
-            return 0;
-        }
-
-        /** {@inheritDoc} */
-        @Override public boolean registerType(@Nullable String spaceName, IndexingTypeDescriptor desc) {
-            return true;
-        }
-
-        /** {@inheritDoc} */
-        @Override public void unregisterType(@Nullable String spaceName, IndexingTypeDescriptor type) {
-            // No-op.
-        }
-
-        /** {@inheritDoc} */
-        @Override public <K> void onSwap(@Nullable String spaceName, String swapSpaceName, K key) {
-            // No-op.
-        }
-
-        /** {@inheritDoc} */
-        @Override public <K, V> void onUnswap(@Nullable String spaceName, K key, V val, byte[] valBytes) {
-            // No-op.
-        }
-
-        /** {@inheritDoc} */
-        @Override public void registerMarshaller(IndexingMarshaller marshaller) {
-            // No-op.
-        }
-
-        /** {@inheritDoc} */
-        @Override public void rebuildIndexes(@Nullable String spaceName, IndexingTypeDescriptor type) {
-            // No-op.
-        }
-
-        /** {@inheritDoc} */
-        @Override public <K, V> void store(@Nullable String spaceName, IndexingTypeDescriptor type,
-                                           IndexingEntity<K> key, IndexingEntity<V> val, byte[] ver, long expirationTime)
+        @Override public void store(@Nullable String spaceName, Object key, Object val, long expirationTime)
             throws IgniteSpiException {
             if (fail) {
                 fail = false;
@@ -649,19 +598,22 @@ public abstract class GridCacheTxExceptionAbstractSelfTest extends GridCacheAbst
         }
 
         /** {@inheritDoc} */
-        @Override public <K> boolean remove(@Nullable String spaceName, IndexingEntity<K> k)
+        @Override public void remove(@Nullable String spaceName, Object k)
             throws IgniteSpiException {
             if (fail) {
                 fail = false;
 
                 throw new IgniteSpiException("Test exception.");
             }
+        }
 
-            return true;
+        /** {@inheritDoc} */
+        @Override public void onSwap(@Nullable String spaceName, Object key) throws IgniteSpiException {
+            // No-op.
         }
 
         /** {@inheritDoc} */
-        @Override public void registerSpace(String spaceName) throws IgniteSpiException {
+        @Override public void onUnswap(@Nullable String spaceName, Object key, Object val) throws IgniteSpiException {
             // No-op.
         }
 


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