Version: 5.0.0.Beta1 - 18 Dec 2015

Hibernate OGM is an attempt to store data in a NoSQL data grid using the Hibernate ORM engine rather than rewriting a JPA engine from scratch.

The benefits are fairly obvious:

• reimplementing the complex JPA specification is a lot of work
• a new implementation would mature at a rather slow rate and risk of bugs would be high
• Hibernate is familiar to many people

Checkout http://ogm.hibernate.org for more information.

The code is available on GitHub at https://github.com/hibernate/hibernate-ogm.

To run the full project build including tests for all backends, documentation etc. execute:

mvn clean install -s settings-example.xml

Note that for running the test suite against separately installed MongoDB and CouchDB servers their host name must be specified via an environment variable. See the sections below for the details.

To speed things up, there are several options for skipping parts of the build. To run the minimum project build without integration tests, documentation and distribution execute:

mvn clean install -DskipITs -DskipDocs -DskipDistro -s settings-example.xml

The following sections describe these options in more detail.

You can skip integration tests by specifying the skipITs property:

mvn clean install -DskipITs -s settings-example.xml

The documentation is built by default as part of the project build. You can skip it by specifying the skipDocs property:

mvn clean install -DskipDocs -s settings-example.xml

If you just want to build the documentation, run it from the documentation/manual subdirectory.

For rapid documentation testing, you can limit the generated format to html to speed up the process

mvn clean install -f documentation/manual/pom.xml -s settings-example.xml -Djdocbook.format=html_single

The distribution bundle is built by default as part of the project build. You can skip it by specifying the skipDistro property:

mvn clean install -DskipDistro -s settings-example.xml

Integration tests can be run from the integrationtest module and the default behaviour is to download the WildFly application server, unpack the modules in it and run the tests using Arquillian.

Be careful when using on existing installation since the modules used by the build are going to be extracted into the server you want to run the test, changing the original setup.

For executing the tests in the mongodb and integrationtest/mongodb modules, by default the embedmongo-maven-plugin is used which downloads the MongoDB distribution, extracts it, starts a mongod process and shuts it down after test execution.

If required, you can configure the port to which the MongoDB instance binds to (by default 27018) and the target directory for the extracted binary (defaults to ${project.build.directory}/embeddedMongoDb/extracted) like this:

mvn clean install -s settings-example.xml -DembeddedMongoDbTempDir=<my-temp-dir> -DembeddedMongoDbPort=<my-port>

To work with a separately installed MongoDB instance instead, specify the property -DmongodbProvider=external:

mvn clean install -s settings-example.xml -DmongodbProvider=external

This assumes MongoDB to be installed on localhost, using the default port and no authentication. If you work with different settings, configure the required properties in hibernate.properties (for the tests in mongodb) and/or the environment variables MONGODB_HOSTNAME MONGODB_PORT MONGODB_USERNAME MONGODB_PASSWORD (for the tests in integrationtest/mongodb) prior to running the tests:

export MONGODB_HOSTNAME=mongodb-machine
export MONGODB_PORT=1234
export MONGODB_USERNAME=someUsername
export MONGODB_PASSWORD=someP@ssw0rd
mvn clean install -s settings-example.xml -DmongodbProvider=external

Finally, you also can run the test suite against the in-memory "fake implementation" Fongo:

mvn clean install -s settings-example.xml -DmongodbProvider=fongo

For running the tests in the couchdb module an installed CouchDB server is required. Specify its host name by setting the environment variable COUCHDB_HOSTNAME prior to running the test suite:

export COUCHDB_HOSTNAME=couchdb-machine

If this variable is not set, the couchdb module still will be compiled and packaged but the tests will be skipped. If needed, the port to connect to can be configured through the environment variable COUCHDB_PORT.

For running the tests in the cassandra module an installed Cassandra server is required. Specify its host name by setting the environment variable CASSANDRA_HOSTNAME prior to running the test suite:

export CASSANDRA_HOSTNAME=cassandra-machine

If this variable is not set, the cassandra module still will be compiled and packaged but the tests will be skipped. If needed, the port to connect to can be configured through the environment variable CASSANDRA_PORT.

For running the tests in the redis module an installed Redis server is required. Specify its host name by setting the environment variable REDIS_HOSTNAME prior to running the test suite:

export REDIS_HOSTNAME=redis-machine

If this variable is not set, the redis module still will be compiled and packaged but the tests will be skipped. If needed, the port to connect to can be configured through the environment variable REDIS_PORT.

Latest Documentation:

http://community.jboss.org/en/hibernate/ogm

Bug Reports:

Hibernate JIRA (preferred): https://hibernate.onjira.com/browse/OGM hibernate-dev@lists.jboss.org

Free Technical Support:

https://forum.hibernate.org/viewforum.php?f=31

If you want to contribute, come to the hibernate-dev@lists.jboss.org mailing list or join us on #hibernate-dev on freenode (login required)

This software and its documentation are distributed under the terms of the FSF Lesser Gnu Public License (see license.txt).