Return-Path: X-Original-To: apmail-ignite-commits-archive@minotaur.apache.org Delivered-To: apmail-ignite-commits-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8E82F10930 for ; Thu, 22 Oct 2015 16:42:11 +0000 (UTC) Received: (qmail 65033 invoked by uid 500); 22 Oct 2015 16:42:11 -0000 Delivered-To: apmail-ignite-commits-archive@ignite.apache.org Received: (qmail 64974 invoked by uid 500); 22 Oct 2015 16:42:11 -0000 Mailing-List: contact commits-help@ignite.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@ignite.apache.org Delivered-To: mailing list commits@ignite.apache.org Received: (qmail 64052 invoked by uid 99); 22 Oct 2015 16:42:10 -0000 Received: from git1-us-west.apache.org (HELO git1-us-west.apache.org) (140.211.11.23) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 22 Oct 2015 16:42:10 +0000 Received: by git1-us-west.apache.org (ASF Mail Server at git1-us-west.apache.org, from userid 33) id 9F004E3928; Thu, 22 Oct 2015 16:42:10 +0000 (UTC) Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: akuznetsov@apache.org To: commits@ignite.apache.org Date: Thu, 22 Oct 2015 16:42:33 -0000 Message-Id: <0ae77ef2c7b942eb98a1c637fdc53f1a@git.apache.org> In-Reply-To: <2a16d3a0aa4a4072a5f2139979f416a4@git.apache.org> References: <2a16d3a0aa4a4072a5f2139979f416a4@git.apache.org> X-Mailer: ASF-Git Admin Mailer Subject: [24/51] [abbrv] ignite git commit: IGNITE-1653 IGNITE-1653 Project: http://git-wip-us.apache.org/repos/asf/ignite/repo Commit: http://git-wip-us.apache.org/repos/asf/ignite/commit/c4b0877f Tree: http://git-wip-us.apache.org/repos/asf/ignite/tree/c4b0877f Diff: http://git-wip-us.apache.org/repos/asf/ignite/diff/c4b0877f Branch: refs/heads/ignite-1753 Commit: c4b0877f29c6e35c57491324837849c420f2b884 Parents: 3a29b97 Author: Anton Vinogradov Authored: Thu Oct 15 16:59:02 2015 +0300 Committer: Anton Vinogradov Committed: Thu Oct 15 16:59:02 2015 +0300 ---------------------------------------------------------------------- assembly/release-fabric-lgpl.xml | 63 +++++ assembly/release-hadoop-lgpl.xml | 39 +++ examples-lgpl/README.txt | 27 ++ examples-lgpl/config/example-cache.xml | 73 ++++++ examples-lgpl/config/example-ignite.xml | 83 +++++++ examples-lgpl/config/filesystem/README.txt | 8 + examples-lgpl/config/filesystem/core-site.xml | 42 ++++ .../config/filesystem/example-igfs.xml | 151 ++++++++++++ examples-lgpl/config/hibernate/README.txt | 8 + .../hibernate/example-hibernate-L2-cache.xml | 64 +++++ examples-lgpl/config/servlet/README.txt | 8 + examples-lgpl/config/servlet/WEB-INF/web.xml | 36 +++ examples-lgpl/pom-standalone.xml | 141 +++++++++++ examples-lgpl/pom.xml | 128 ++++++++++ .../hibernate/HibernateL2CacheExample.java | 245 +++++++++++++++++++ .../examples/datagrid/hibernate/Post.java | 130 ++++++++++ .../examples/datagrid/hibernate/User.java | 154 ++++++++++++ .../datagrid/hibernate/package-info.java | 22 ++ .../hibernate/CacheHibernatePersonStore.java | 122 +++++++++ .../hibernate/CacheHibernateStoreExample.java | 151 ++++++++++++ .../datagrid/store/hibernate/Person.hbm.xml | 34 +++ .../datagrid/store/hibernate/hibernate.cfg.xml | 41 ++++ .../datagrid/store/hibernate/package-info.java | 22 ++ .../java8/cluster/ClusterGroupExample.java | 86 +++++++ .../examples/java8/cluster/package-info.java | 22 ++ .../java8/computegrid/ComputeAsyncExample.java | 75 ++++++ .../computegrid/ComputeBroadcastExample.java | 102 ++++++++ .../computegrid/ComputeCallableExample.java | 75 ++++++ .../computegrid/ComputeClosureExample.java | 71 ++++++ .../computegrid/ComputeRunnableExample.java | 64 +++++ .../java8/computegrid/package-info.java | 22 ++ .../java8/datagrid/CacheAffinityExample.java | 137 +++++++++++ .../java8/datagrid/CacheApiExample.java | 105 ++++++++ .../java8/datagrid/CacheAsyncApiExample.java | 85 +++++++ .../examples/java8/datagrid/package-info.java | 22 ++ .../IgniteExecutorServiceExample.java | 70 ++++++ .../java8/datastructures/package-info.java | 22 ++ .../examples/java8/events/EventsExample.java | 135 ++++++++++ .../examples/java8/events/package-info.java | 22 ++ .../java8/messaging/MessagingExample.java | 166 +++++++++++++ .../messaging/MessagingPingPongExample.java | 113 +++++++++ .../examples/java8/messaging/package-info.java | 22 ++ .../misc/schedule/ComputeScheduleExample.java | 68 +++++ .../java8/misc/schedule/package-info.java | 22 ++ .../ignite/examples/java8/package-info.java | 23 ++ .../streaming/StreamTransformerExample.java | 101 ++++++++ .../java8/streaming/StreamVisitorExample.java | 172 +++++++++++++ .../examples/java8/streaming/package-info.java | 22 ++ ...ibernateL2CacheExampleMultiNodeSelfTest.java | 31 +++ .../HibernateL2CacheExampleSelfTest.java | 33 +++ .../IgniteLgplExamplesSelfTestSuite.java | 48 ++++ ...ibernateL2CacheExampleMultiNodeSelfTest.java | 29 +++ .../HibernateL2CacheExampleSelfTest.java | 37 +++ .../IgniteLgplExamplesJ8SelfTestSuite.java | 46 ++++ examples/pom-standalone.xml | 12 - examples/pom.xml | 12 - .../hibernate/HibernateL2CacheExample.java | 245 ------------------- .../examples/datagrid/hibernate/Post.java | 130 ---------- .../examples/datagrid/hibernate/User.java | 154 ------------ .../datagrid/hibernate/package-info.java | 22 -- .../hibernate/CacheHibernatePersonStore.java | 122 --------- .../hibernate/CacheHibernateStoreExample.java | 151 ------------ .../datagrid/store/hibernate/Person.hbm.xml | 34 --- .../datagrid/store/hibernate/hibernate.cfg.xml | 41 ---- .../datagrid/store/hibernate/package-info.java | 22 -- ...ibernateL2CacheExampleMultiNodeSelfTest.java | 31 --- .../HibernateL2CacheExampleSelfTest.java | 33 --- .../testsuites/IgniteExamplesSelfTestSuite.java | 4 - ...ibernateL2CacheExampleMultiNodeSelfTest.java | 29 --- .../HibernateL2CacheExampleSelfTest.java | 37 --- pom.xml | 65 ++++- 71 files changed, 3904 insertions(+), 1080 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/assembly/release-fabric-lgpl.xml ---------------------------------------------------------------------- diff --git a/assembly/release-fabric-lgpl.xml b/assembly/release-fabric-lgpl.xml new file mode 100644 index 0000000..b8757db --- /dev/null +++ b/assembly/release-fabric-lgpl.xml @@ -0,0 +1,63 @@ + + + + + + fabric + + false + + + dir + + + + + examples-lgpl/pom-standalone.xml + /examples-lgpl + pom.xml + + + + + + examples-lgpl + /examples-lgpl + + README.txt + + + + + examples-lgpl + /examples-lgpl + + config/** + src/** + + + **/package.html + pom-standalone.xml + src/test/** + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/assembly/release-hadoop-lgpl.xml ---------------------------------------------------------------------- diff --git a/assembly/release-hadoop-lgpl.xml b/assembly/release-hadoop-lgpl.xml new file mode 100644 index 0000000..ac2fc31 --- /dev/null +++ b/assembly/release-hadoop-lgpl.xml @@ -0,0 +1,39 @@ + + + + + + fabric + + false + + + dir + + + + + assembly/LICENSE_HADOOP + LICENSE + / + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/README.txt ---------------------------------------------------------------------- diff --git a/examples-lgpl/README.txt b/examples-lgpl/README.txt new file mode 100644 index 0000000..8c8982e --- /dev/null +++ b/examples-lgpl/README.txt @@ -0,0 +1,27 @@ +Apache Ignite LGPL Examples +====================== + +This folder contains code examples for various Apache Ignite functionality. + +Examples are shipped as a separate Maven project, so to start running you simply need +to import provided `pom.xml` file into your favourite IDE. + +The examples folder contains he following subfolders: + +- `config` - contains Ignite configuration files needed for examples. +- `src/main/java` - contains Java examples for different Ignite modules and features. +- `src/main/java8` - contains additional set of Java examples utilizing Java 8 lambdas. These examples + are excluded by default, enable `java8-examples` Maven profile to include them (JDK8 is required). + + +Starting Remote Nodes +===================== + +Remote nodes for examples should always be started with special configuration file which enables P2P +class loading: `examples/config/example-ignite.xml`. To run a remote node in IDE use `ExampleNodeStartup` class. + + +Java7 vs Java8 +=============== +Some examples (not all) which can benefit from Java8 Lambda support were re-written with Java8 lambdas. +For full set of examples, look at both Java7 and Java8 packages. http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/example-cache.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/example-cache.xml b/examples-lgpl/config/example-cache.xml new file mode 100644 index 0000000..dcb8e75 --- /dev/null +++ b/examples-lgpl/config/example-cache.xml @@ -0,0 +1,73 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 127.0.0.1:47500..47509 + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/example-ignite.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/example-ignite.xml b/examples-lgpl/config/example-ignite.xml new file mode 100644 index 0000000..e870106 --- /dev/null +++ b/examples-lgpl/config/example-ignite.xml @@ -0,0 +1,83 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 127.0.0.1:47500..47509 + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/filesystem/README.txt ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/filesystem/README.txt b/examples-lgpl/config/filesystem/README.txt new file mode 100644 index 0000000..4f6ae88 --- /dev/null +++ b/examples-lgpl/config/filesystem/README.txt @@ -0,0 +1,8 @@ +FileSystem Configuration Example +-------------------------------- + +This folder contains configuration files for IgniteFs examples located in +org.apache.ignite.examples.igfs package. + +- example-igfs.xml file is used to start Apache Ignite nodes with IgniteFS configured +- core-site.xml file is used to run Hadoop FS driver over IgniteFs http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/filesystem/core-site.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/filesystem/core-site.xml b/examples-lgpl/config/filesystem/core-site.xml new file mode 100644 index 0000000..a7a027c --- /dev/null +++ b/examples-lgpl/config/filesystem/core-site.xml @@ -0,0 +1,42 @@ + + + + + + + + + fs.default.name + igfs:/// + + + + + fs.igfs.impl + org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem + + + + + fs.AbstractFileSystem.igfs.impl + org.apache.ignite.hadoop.fs.v2.IgniteHadoopFileSystem + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/filesystem/example-igfs.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/filesystem/example-igfs.xml b/examples-lgpl/config/filesystem/example-igfs.xml new file mode 100644 index 0000000..d009d46 --- /dev/null +++ b/examples-lgpl/config/filesystem/example-igfs.xml @@ -0,0 +1,151 @@ + + + + + + + + + + Spring file for ignite configuration with client available endpoints. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 127.0.0.1:47500..47509 + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/hibernate/README.txt ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/hibernate/README.txt b/examples-lgpl/config/hibernate/README.txt new file mode 100644 index 0000000..5b7ab29 --- /dev/null +++ b/examples-lgpl/config/hibernate/README.txt @@ -0,0 +1,8 @@ +Hibernate L2 Cache Configuration Example +---------------------------------------- + +This folder contains example-hibernate-L2-cache.xml file that demonstrates +how to configure Hibernate to use Apache Ignite cache as an L2 cache provider. + +This file is also used in Hibernate example located in org.apache.ignite.examples.datagrid.hibernate +package. http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/hibernate/example-hibernate-L2-cache.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/hibernate/example-hibernate-L2-cache.xml b/examples-lgpl/config/hibernate/example-hibernate-L2-cache.xml new file mode 100644 index 0000000..a2f7e89 --- /dev/null +++ b/examples-lgpl/config/hibernate/example-hibernate-L2-cache.xml @@ -0,0 +1,64 @@ + + + + + + + + + + + + + jdbc:h2:mem:example;DB_CLOSE_DELAY=-1 + + + create + + + true + + + true + + + true + + + org.apache.ignite.cache.hibernate.HibernateRegionFactory + + + on_close + + + READ_ONLY + + + + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/servlet/README.txt ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/servlet/README.txt b/examples-lgpl/config/servlet/README.txt new file mode 100644 index 0000000..20d4b90 --- /dev/null +++ b/examples-lgpl/config/servlet/README.txt @@ -0,0 +1,8 @@ +Servlet Configuration Example +----------------------------- + +This folder contains web.xml file that demonstrates how to configure any servlet container +to start a Apache Ignite node inside a Web application. + +For more information on available configuration properties, etc. refer to our documentation: +http://apacheignite.readme.io/docs/web-session-clustering http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/config/servlet/WEB-INF/web.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/config/servlet/WEB-INF/web.xml b/examples-lgpl/config/servlet/WEB-INF/web.xml new file mode 100644 index 0000000..de4b3a0 --- /dev/null +++ b/examples-lgpl/config/servlet/WEB-INF/web.xml @@ -0,0 +1,36 @@ + + + + + + + + IgniteConfigurationFilePath + config/default-config.xml + + + + org.apache.ignite.startup.servlet.ServletContextListenerStartup + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/pom-standalone.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/pom-standalone.xml b/examples-lgpl/pom-standalone.xml new file mode 100644 index 0000000..d2a00d1 --- /dev/null +++ b/examples-lgpl/pom-standalone.xml @@ -0,0 +1,141 @@ + + + + + + + 4.0.0 + + + UTF-8 + + + org.apache.ignite + ignite-examples-lgpl + to_be_replaced_by_ignite_version + pom + + + + org.apache.ignite + ignite-examples + to_be_replaced_by_ignite_version + + + + org.apache.ignite + ignite-hibernate + to_be_replaced_by_ignite_version + + + + org.apache.ignite + ignite-schedule + to_be_replaced_by_ignite_version + + + + + ../examples + + + + + + src/main/java + + **/*.java + + + + config + + + + + + maven-compiler-plugin + 3.1 + + 1.7 + 1.7 + + + + + + + + java8-examples + + + [1.8,) + + + + + + maven-compiler-plugin + 3.1 + + 1.8 + 1.8 + + + + + org.codehaus.mojo + build-helper-maven-plugin + 1.9.1 + + + add-sources + generate-sources + + add-source + + + + src/main/java8 + + + + + add-tests + generate-test-sources + + add-test-source + + + + src/test/java8 + + + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/pom.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/pom.xml b/examples-lgpl/pom.xml new file mode 100644 index 0000000..019dc23 --- /dev/null +++ b/examples-lgpl/pom.xml @@ -0,0 +1,128 @@ + + + + + + 4.0.0 + + + org.apache.ignite + ignite-parent + 1 + ../parent + + + ignite-examples-lgpl + 1.5.0-SNAPSHOT + + + + org.apache.ignite + ignite-hibernate + ${project.version} + + + + org.apache.ignite + ignite-schedule + ${project.version} + + + + org.apache.ignite + ignite-examples + ${project.version} + + + + org.apache.ignite + ignite-core + ${project.version} + test-jar + test + + + + + + + src/main/java + + **/*.java + + + + config + + + + + + + java8-examples + + + [1.8,) + + + + + + maven-compiler-plugin + + 1.8 + 1.8 + + + + + org.codehaus.mojo + build-helper-maven-plugin + 1.9.1 + + + add-sources + generate-sources + + add-source + + + + src/main/java8 + + + + + add-tests + generate-test-sources + + add-test-source + + + + src/test/java8 + + + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/HibernateL2CacheExample.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/HibernateL2CacheExample.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/HibernateL2CacheExample.java new file mode 100644 index 0000000..2f271c8 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/HibernateL2CacheExample.java @@ -0,0 +1,245 @@ +/* + * 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 org.apache.ignite.examples.datagrid.hibernate; + +import java.net.URL; +import java.util.Arrays; +import java.util.List; +import org.apache.ignite.Ignite; +import org.apache.ignite.IgniteCache; +import org.apache.ignite.IgniteException; +import org.apache.ignite.Ignition; +import org.apache.ignite.cache.CacheAtomicityMode; +import org.apache.ignite.configuration.CacheConfiguration; +import org.apache.ignite.examples.ExampleNodeStartup; +import org.apache.ignite.examples.ExamplesUtils; +import org.hibernate.Session; +import org.hibernate.SessionFactory; +import org.hibernate.Transaction; +import org.hibernate.cache.spi.access.AccessType; +import org.hibernate.cfg.Configuration; +import org.hibernate.service.ServiceRegistryBuilder; +import org.hibernate.stat.SecondLevelCacheStatistics; + +import static org.apache.ignite.cache.CacheAtomicityMode.ATOMIC; +import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL; +import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_SYNC; + +/** + * This example demonstrates the use of Ignite In-Memory Data Ignite cluster as a Hibernate + * Second-Level cache provider. + *

+ * The Hibernate Second-Level cache (or "L2 cache" shortly) lets you significantly + * reduce the number of requests to the underlying SQL database. Because database + * access is known to be an expansive operation, using L2 cache may improve + * performance dramatically. + *

+ * This example defines 2 entity classes: {@link User} and {@link Post}, with + * 1 <-> N relation, and marks them with appropriate annotations for Hibernate + * object-relational mapping to SQL tables of an underlying H2 in-memory database. + * The example launches node in the same JVM and registers it in + * Hibernate configuration as an L2 cache implementation. It then stores and + * queries instances of the entity classes to and from the database, having + * Hibernate SQL output, L2 cache statistics output, and Ignite cache metrics + * output enabled. + *

+ * When running example, it's easy to notice that when an object is first + * put into a database, the L2 cache is not used and it's contents is empty. + * However, when an object is first read from the database, it is immediately + * stored in L2 cache (which is Ignite In-Memory Data Ignite cluster in fact), which can + * be seen in stats output. Further requests of the same object only read the data + * from L2 cache and do not hit the database. + *

+ * In this example, the Hibernate query cache is also enabled. Query cache lets you + * avoid hitting the database in case of repetitive queries with the same parameter + * values. You may notice that when the example runs the same query repeatedly in + * loop, only the first query hits the database and the successive requests take the + * data from L2 cache. + *

+ * Note: this example uses {@link AccessType#READ_ONLY} L2 cache access type, but you + * can experiment with other access types by modifying the Hibernate configuration file + * {@code IGNITE_HOME/examples/config/hibernate/example-hibernate-L2-cache.xml}, used by the example. + *

+ * Remote nodes should always be started with special configuration file which + * enables P2P class loading: {@code 'ignite.{sh|bat} examples/config/example-ignite.xml'}. + *

+ * Alternatively you can run {@link ExampleNodeStartup} in another JVM which will + * start node with {@code examples/config/example-ignite.xml} configuration. + */ +public class HibernateL2CacheExample { + /** JDBC URL for backing database (an H2 in-memory database is used). */ + private static final String JDBC_URL = "jdbc:h2:mem:example;DB_CLOSE_DELAY=-1"; + + /** Path to hibernate configuration file (will be resolved from application {@code CLASSPATH}). */ + private static final String HIBERNATE_CFG = "hibernate/example-hibernate-L2-cache.xml"; + + /** Entity names for stats output. */ + private static final List ENTITY_NAMES = + Arrays.asList(User.class.getName(), Post.class.getName(), User.class.getName() + ".posts"); + + /** + * Executes example. + * + * @param args Command line arguments, none required. + * @throws IgniteException If example execution failed. + */ + public static void main(String[] args) throws IgniteException { + // Start the node, run the example, and stop the node when finished. + try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) { + // We use a single session factory, but create a dedicated session + // for each transaction or query. This way we ensure that L1 cache + // is not used (L1 cache has per-session scope only). + System.out.println(); + System.out.println(">>> Hibernate L2 cache example started."); + + try ( + // Create all required caches. + IgniteCache c1 = createCache("org.hibernate.cache.spi.UpdateTimestampsCache", ATOMIC); + IgniteCache c2 = createCache("org.hibernate.cache.internal.StandardQueryCache", ATOMIC); + IgniteCache c3 = createCache("org.apache.ignite.examples.datagrid.hibernate.User", TRANSACTIONAL); + IgniteCache c4 = createCache("org.apache.ignite.examples.datagrid.hibernate.User.posts", TRANSACTIONAL); + IgniteCache c5 = createCache("org.apache.ignite.examples.datagrid.hibernate.Post", TRANSACTIONAL) + ) { + URL hibernateCfg = ExamplesUtils.url(HIBERNATE_CFG); + + SessionFactory sesFactory = createHibernateSessionFactory(hibernateCfg); + + System.out.println(); + System.out.println(">>> Creating objects."); + + final long userId; + + Session ses = sesFactory.openSession(); + + try { + Transaction tx = ses.beginTransaction(); + + User user = new User("jedi", "Luke", "Skywalker"); + + user.getPosts().add(new Post(user, "Let the Force be with you.")); + + ses.save(user); + + tx.commit(); + + // Create a user object, store it in DB, and save the database-generated + // object ID. You may try adding more objects in a similar way. + userId = user.getId(); + } + finally { + ses.close(); + } + + // Output L2 cache and Ignite cache stats. You may notice that + // at this point the object is not yet stored in L2 cache, because + // the read was not yet performed. + printStats(sesFactory); + + System.out.println(); + System.out.println(">>> Querying object by ID."); + + // Query user by ID several times. First time we get an L2 cache + // miss, and the data is queried from DB, but it is then stored + // in cache and successive queries hit the cache and return + // immediately, no SQL query is made. + for (int i = 0; i < 3; i++) { + ses = sesFactory.openSession(); + + try { + Transaction tx = ses.beginTransaction(); + + User user = (User)ses.get(User.class, userId); + + System.out.println("User: " + user); + + for (Post post : user.getPosts()) + System.out.println("\tPost: " + post); + + tx.commit(); + } + finally { + ses.close(); + } + } + + // Output the stats. We should see 1 miss and 2 hits for + // User and Collection object (stored separately in L2 cache). + // The Post is loaded with the collection, so it won't imply + // a miss. + printStats(sesFactory); + } + } + } + + /** + * Creates cache. + * + * @param name Cache name. + * @param atomicityMode Atomicity mode. + * @return Cache configuration. + */ + private static IgniteCache createCache(String name, CacheAtomicityMode atomicityMode) { + CacheConfiguration ccfg = new CacheConfiguration(name); + + ccfg.setAtomicityMode(atomicityMode); + ccfg.setWriteSynchronizationMode(FULL_SYNC); + + return Ignition.ignite().getOrCreateCache(ccfg); + } + + /** + * Creates a new Hibernate {@link SessionFactory} using a programmatic + * configuration. + * + * @param hibernateCfg Hibernate configuration file. + * @return New Hibernate {@link SessionFactory}. + */ + private static SessionFactory createHibernateSessionFactory(URL hibernateCfg) { + ServiceRegistryBuilder builder = new ServiceRegistryBuilder(); + + builder.applySetting("hibernate.connection.url", JDBC_URL); + builder.applySetting("hibernate.show_sql", true); + + return new Configuration() + .configure(hibernateCfg) + .buildSessionFactory(builder.buildServiceRegistry()); + } + + /** + * Prints Hibernate L2 cache statistics to standard output. + * + * @param sesFactory Hibernate {@link SessionFactory}, for which to print + * statistics. + */ + private static void printStats(SessionFactory sesFactory) { + System.out.println("=== Hibernate L2 cache statistics ==="); + + for (String entityName : ENTITY_NAMES) { + System.out.println("\tEntity: " + entityName); + + SecondLevelCacheStatistics stats = + sesFactory.getStatistics().getSecondLevelCacheStatistics(entityName); + + System.out.println("\t\tL2 cache entries: " + stats.getEntries()); + System.out.println("\t\tHits: " + stats.getHitCount()); + System.out.println("\t\tMisses: " + stats.getMissCount()); + } + + System.out.println("====================================="); + } +} http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/Post.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/Post.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/Post.java new file mode 100644 index 0000000..8e98835 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/Post.java @@ -0,0 +1,130 @@ +/* + * 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 org.apache.ignite.examples.datagrid.hibernate; + +import java.util.Date; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.GenerationType; +import javax.persistence.Id; +import javax.persistence.ManyToOne; + +/** + * An entity class representing a post, that a + * {@link User} has made on some public service. + */ +@Entity +class Post { + /** ID. */ + @Id + @GeneratedValue(strategy=GenerationType.AUTO) + private long id; + + /** Author. */ + @ManyToOne + private User author; + + /** Text. */ + private String text; + + /** Created timestamp. */ + private Date created; + + /** + * Default constructor (required by Hibernate). + */ + Post() { + // No-op. + } + + /** + * Constructor. + * + * @param author Author. + * @param text Text. + */ + Post(User author, String text) { + this.author = author; + this.text = text; + created = new Date(); + } + + /** + * @return ID. + */ + public long getId() { + return id; + } + + /** + * @param id New ID. + */ + public void setId(long id) { + this.id = id; + } + + /** + * @return Author. + */ + public User getAuthor() { + return author; + } + + /** + * @param author New author. + */ + public void setAuthor(User author) { + this.author = author; + } + + /** + * @return Text. + */ + public String getText() { + return text; + } + + /** + * @param text New text. + */ + public void setText(String text) { + this.text = text; + } + + /** + * @return Created timestamp. + */ + public Date getCreated() { + return (Date)created.clone(); + } + + /** + * @param created New created timestamp. + */ + public void setCreated(Date created) { + this.created = (Date)created.clone(); + } + + /** {@inheritDoc} */ + @Override public String toString() { + return "Post [id=" + id + + ", text=" + text + + ", created=" + created + + ']'; + } +} http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/User.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/User.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/User.java new file mode 100644 index 0000000..d0486f5 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/User.java @@ -0,0 +1,154 @@ +/* + * 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 org.apache.ignite.examples.datagrid.hibernate; + +import java.util.HashSet; +import java.util.Set; +import javax.persistence.CascadeType; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.GenerationType; +import javax.persistence.Id; +import javax.persistence.OneToMany; +import org.hibernate.annotations.NaturalId; + +/** + * A user entity class. Represents a user of some public service, + * having a number of personal information fields as well as a + * number of posts written. + */ +@Entity +class User { + /** ID. */ + @Id + @GeneratedValue(strategy=GenerationType.AUTO) + private long id; + + /** Login. */ + @NaturalId + private String login; + + /** First name. */ + private String firstName; + + /** Last name. */ + private String lastName; + + /** Posts. */ + @OneToMany(mappedBy = "author", cascade = CascadeType.ALL) + private Set posts = new HashSet<>(); + + /** + * Default constructor (required by Hibernate). + */ + User() { + // No-op. + } + + /** + * Constructor. + * + * @param login Login. + * @param firstName First name. + * @param lastName Last name. + */ + User(String login, String firstName, String lastName) { + this.login = login; + this.firstName = firstName; + this.lastName = lastName; + } + + /** + * @return ID. + */ + public long getId() { + return id; + } + + /** + * @param id New ID. + */ + public void setId(long id) { + this.id = id; + } + + /** + * @return Login. + */ + public String getLogin() { + return login; + } + + /** + * @param login New login. + */ + public void setLogin(String login) { + this.login = login; + } + + /** + * @return First name. + */ + public String getFirstName() { + return firstName; + } + + /** + * @param firstName New first name. + */ + public void setFirstName(String firstName) { + this.firstName = firstName; + } + + /** + * @return Last name. + */ + public String getLastName() { + return lastName; + } + + /** + * @param lastName New last name. + */ + public void setLastName(String lastName) { + this.lastName = lastName; + } + + /** + * @return Posts. + */ + public Set getPosts() { + return posts; + } + + /** + * @param posts New posts. + */ + public void setPosts(Set posts) { + this.posts = posts; + } + + /** {@inheritDoc} */ + @Override public String toString() { + return "User [id=" + id + + ", login=" + login + + ", firstName=" + firstName + + ", lastName=" + lastName + + ']'; + } +} http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/package-info.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/package-info.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/package-info.java new file mode 100644 index 0000000..7bddaaf --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/hibernate/package-info.java @@ -0,0 +1,22 @@ +/* + * 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. + */ + +/** + * + * Hibernate example. + */ +package org.apache.ignite.examples.datagrid.hibernate; http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernatePersonStore.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernatePersonStore.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernatePersonStore.java new file mode 100644 index 0000000..d040b88 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernatePersonStore.java @@ -0,0 +1,122 @@ +/* + * 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 org.apache.ignite.examples.datagrid.store.hibernate; + +import java.util.List; +import java.util.UUID; +import javax.cache.integration.CacheLoaderException; +import javax.cache.integration.CacheWriterException; +import org.apache.ignite.cache.store.CacheStore; +import org.apache.ignite.cache.store.CacheStoreAdapter; +import org.apache.ignite.cache.store.CacheStoreSession; +import org.apache.ignite.examples.datagrid.store.Person; +import org.apache.ignite.lang.IgniteBiInClosure; +import org.apache.ignite.resources.CacheStoreSessionResource; +import org.hibernate.HibernateException; +import org.hibernate.Session; + +/** + * Example of {@link CacheStore} implementation that uses Hibernate + * and deals with maps {@link UUID} to {@link Person}. + */ +public class CacheHibernatePersonStore extends CacheStoreAdapter { + /** Auto-injected store session. */ + @CacheStoreSessionResource + private CacheStoreSession ses; + + /** {@inheritDoc} */ + @Override public Person load(Long key) { + System.out.println(">>> Store load [key=" + key + ']'); + + Session hibSes = ses.attachment(); + + try { + return (Person)hibSes.get(Person.class, key); + } + catch (HibernateException e) { + throw new CacheLoaderException("Failed to load value from cache store [key=" + key + ']', e); + } + } + + /** {@inheritDoc} */ + @Override public void write(javax.cache.Cache.Entry entry) { + Long key = entry.getKey(); + Person val = entry.getValue(); + + System.out.println(">>> Store write [key=" + key + ", val=" + val + ']'); + + Session hibSes = ses.attachment(); + + try { + hibSes.saveOrUpdate(val); + } + catch (HibernateException e) { + throw new CacheWriterException("Failed to put value to cache store [key=" + key + ", val" + val + "]", e); + } + } + + /** {@inheritDoc} */ + @SuppressWarnings({"JpaQueryApiInspection"}) + @Override public void delete(Object key) { + System.out.println(">>> Store delete [key=" + key + ']'); + + Session hibSes = ses.attachment(); + + try { + hibSes.createQuery("delete " + Person.class.getSimpleName() + " where key = :key"). + setParameter("key", key). + executeUpdate(); + } + catch (HibernateException e) { + throw new CacheWriterException("Failed to remove value from cache store [key=" + key + ']', e); + } + } + + /** {@inheritDoc} */ + @Override public void loadCache(IgniteBiInClosure clo, Object... args) { + if (args == null || args.length == 0 || args[0] == null) + throw new CacheLoaderException("Expected entry count parameter is not provided."); + + final int entryCnt = (Integer)args[0]; + + Session hibSes = ses.attachment(); + + try { + int cnt = 0; + + List list = hibSes.createCriteria(Person.class). + setMaxResults(entryCnt). + list(); + + if (list != null) { + for (Object obj : list) { + Person person = (Person)obj; + + clo.apply(person.getId(), person); + + cnt++; + } + } + + System.out.println(">>> Loaded " + cnt + " values into cache."); + } + catch (HibernateException e) { + throw new CacheLoaderException("Failed to load values from cache store.", e); + } + } +} http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernateStoreExample.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernateStoreExample.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernateStoreExample.java new file mode 100644 index 0000000..f993d81 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/CacheHibernateStoreExample.java @@ -0,0 +1,151 @@ +/* + * 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 org.apache.ignite.examples.datagrid.store.hibernate; + +import java.util.UUID; +import javax.cache.configuration.Factory; +import javax.cache.configuration.FactoryBuilder; +import org.apache.ignite.Ignite; +import org.apache.ignite.IgniteCache; +import org.apache.ignite.IgniteException; +import org.apache.ignite.Ignition; +import org.apache.ignite.cache.store.CacheStoreSessionListener; +import org.apache.ignite.cache.store.hibernate.CacheHibernateStoreSessionListener; +import org.apache.ignite.configuration.CacheConfiguration; +import org.apache.ignite.examples.ExampleNodeStartup; +import org.apache.ignite.examples.ExamplesUtils; +import org.apache.ignite.examples.datagrid.store.Person; +import org.apache.ignite.transactions.Transaction; + +import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL; + +/** + * Demonstrates usage of cache with underlying persistent store configured. + *

+ * This example uses {@link CacheHibernatePersonStore} as a persistent store. + *

+ * Remote nodes can be started with {@link ExampleNodeStartup} in another JVM which will + * start node with {@code examples/config/example-ignite.xml} configuration. + */ +public class CacheHibernateStoreExample { + /** Hibernate configuration resource path. */ + private static final String HIBERNATE_CFG = + "/org/apache/ignite/examples/datagrid/store/hibernate/hibernate.cfg.xml"; + + /** Cache name. */ + private static final String CACHE_NAME = CacheHibernateStoreExample.class.getSimpleName(); + + /** Heap size required to run this example. */ + public static final int MIN_MEMORY = 1024 * 1024 * 1024; + + /** Number of entries to load. */ + private static final int ENTRY_COUNT = 100_000; + + /** Global person ID to use across entire example. */ + private static final Long id = Math.abs(UUID.randomUUID().getLeastSignificantBits()); + + /** + * Executes example. + * + * @param args Command line arguments, none required. + * @throws IgniteException If example execution failed. + */ + public static void main(String[] args) throws IgniteException { + ExamplesUtils.checkMinMemory(MIN_MEMORY); + + // To start ignite with desired configuration uncomment the appropriate line. + try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) { + System.out.println(); + System.out.println(">>> Cache store example started."); + + CacheConfiguration cacheCfg = new CacheConfiguration<>(CACHE_NAME); + + // Set atomicity as transaction, since we are showing transactions in example. + cacheCfg.setAtomicityMode(TRANSACTIONAL); + + // Configure Hibernate store. + cacheCfg.setCacheStoreFactory(FactoryBuilder.factoryOf(CacheHibernatePersonStore.class)); + + // Configure Hibernate session listener. + cacheCfg.setCacheStoreSessionListenerFactories(new Factory() { + @Override public CacheStoreSessionListener create() { + CacheHibernateStoreSessionListener lsnr = new CacheHibernateStoreSessionListener(); + + lsnr.setHibernateConfigurationPath(HIBERNATE_CFG); + + return lsnr; + } + }); + + cacheCfg.setReadThrough(true); + cacheCfg.setWriteThrough(true); + + try (IgniteCache cache = ignite.getOrCreateCache(cacheCfg)) { + // Make initial cache loading from persistent store. This is a + // distributed operation and will call CacheStore.loadCache(...) + // method on all nodes in topology. + loadCache(cache); + + // Start transaction and execute several cache operations with + // read/write-through to persistent store. + executeTransaction(cache); + } + } + } + + /** + * Makes initial cache loading. + * + * @param cache Cache to load. + */ + private static void loadCache(IgniteCache cache) { + long start = System.currentTimeMillis(); + + // Start loading cache from persistent store on all caching nodes. + cache.loadCache(null, ENTRY_COUNT); + + long end = System.currentTimeMillis(); + + System.out.println(">>> Loaded " + cache.size() + " keys with backups in " + (end - start) + "ms."); + } + + /** + * Executes transaction with read/write-through to persistent store. + * + * @param cache Cache to execute transaction on. + */ + private static void executeTransaction(IgniteCache cache) { + try (Transaction tx = Ignition.ignite().transactions().txStart()) { + Person val = cache.get(id); + + System.out.println("Read value: " + val); + + val = cache.getAndPut(id, new Person(id, "Isaac", "Newton")); + + System.out.println("Overwrote old value: " + val); + + val = cache.get(id); + + System.out.println("Read value: " + val); + + tx.commit(); + } + + System.out.println("Read value after commit: " + cache.get(id)); + } +} http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/Person.hbm.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/Person.hbm.xml b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/Person.hbm.xml new file mode 100644 index 0000000..035ab98 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/Person.hbm.xml @@ -0,0 +1,34 @@ + + + + + + + + + + + + + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/hibernate.cfg.xml ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/hibernate.cfg.xml b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/hibernate.cfg.xml new file mode 100644 index 0000000..80a43e7 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/hibernate.cfg.xml @@ -0,0 +1,41 @@ + + + + + + + + + + + jdbc:h2:mem:example;DB_CLOSE_DELAY=-1 + + + update + + + false + + + + + http://git-wip-us.apache.org/repos/asf/ignite/blob/c4b0877f/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/package-info.java ---------------------------------------------------------------------- diff --git a/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/package-info.java b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/package-info.java new file mode 100644 index 0000000..7210b49 --- /dev/null +++ b/examples-lgpl/src/main/java/org/apache/ignite/examples/datagrid/store/hibernate/package-info.java @@ -0,0 +1,22 @@ +/* + * 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. + */ + +/** + * + * Contains Hibernate-based cache store implementation. + */ +package org.apache.ignite.examples.datagrid.store.hibernate;