100 lines
4.6 KiB
Markdown
100 lines
4.6 KiB
Markdown
<img src="http://static.jboss.org/hibernate/images/hibernate_logo_whitebkg_200px.png" />
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Hibernate ORM is a component/library providing Object/Relational Mapping (ORM) support
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to applications and other components/libraries. It is also provides an implementation of the
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JPA specification, which is the standardized Java specification for ORM. See
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[Hibernate.org](http://hibernate.org/orm/) for additional information.
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[](http://ci.hibernate.org/job/hibernate-orm-master-h2/)
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Quickstart
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==========
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git clone git://github.com/hibernate/hibernate-orm.git
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cd hibernate-orm
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./gradlew clean build
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The build requires a Java 8 JDK as JAVA_HOME, but will ensure Java 6 compatibility.
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Resources
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=========
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Hibernate uses [Gradle](http://gradle.org) as its build tool. See the _Gradle Primer_ section below if you are new to
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Gradle.
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Contributors should read the [Contributing Guide](CONTRIBUTING.md)
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See the guides for setting up [IntelliJ](https://developer.jboss.org/wiki/ContributingToHibernateUsingIntelliJ) or
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[Eclipse]() as your development environment. [Building Hibernate ORM](https://community.jboss.org/wiki/BuildingHibernateORM4x)
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is somewhat outdated, but still has
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CI Builds
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=========
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Hibernate makes use of [Jenkins](http://jenkins-ci.org) for its CI needs. The project is built continuous on each
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push to the upstream repository. Overall there are a few different jobs, all of which can be seen at
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[http://ci.hibernate.org/view/ORM/](http://ci.hibernate.org/view/ORM/)
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Gradle primer
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=============
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This section describes some of the basics developers and contributors new to Gradle might
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need to know to get productive quickly. The Gradle documentation is very well done; 2 in
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particular that are indispensable:
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* [Gradle User Guide](http://gradle.org/docs/current/userguide/userguide_single.html) is a typical user guide in that
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it follows a topical approach to describing all of the capabilities of Gradle.
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* [Gradle DSL Guide](http://gradle.org/docs/current/dsl/index.html) is quite unique and excellent in quickyl
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getting up to speed on certain aspects of Gradle.
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Using the Gradle Wrapper
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------------------------
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For contributors who do not otherwise use Gradle and do not want to install it, Gradle offers a very cool
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features called the wrapper. It lets you run Gradle builds without a previously installed Gradle distro in
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a zero-conf manner. Hibernate configures the Gradle wrapper for you. If you would rather use the wrapper and
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not install Gradle (or to make sure you use the version of Gradle intended for older builds) you would just use
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the command `gradlew` (or `gradlew.bat`) rather than `gradle` (or `gradle.bat`) in the following discussions.
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Note that `gradlew` is only available in the project's root dir, so depending on your `pwd` you may need to adjust
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the path to `gradlew` as well.
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Executing Tasks
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---------------
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Gradle uses the concept of build tasks (equivalent to Ant targets or Maven phases/goals). You can get a list of
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available tasks via
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gradle tasks
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To execute a task across all modules, simply perform that task from the root directory. Gradle will visit each
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sub-project and execute that task if the sub-project defines it. To execute a task in a specific module you can
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either:
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1. `cd` into that module directory and execute the task
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2. name the "task path". For example, in order to run the tests for the _hibernate-core_ module from the root directory you could say `gradle hibernate-core:test`
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Common Java related tasks
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-------------------------
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* _build_ - Assembles (jars) and tests this project
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* _buildDependents_ - Assembles and tests this project and all projects that depend on it. So think of running this in hibernate-entitymanager, Gradle would assemble and test hibernate-entitymanager as well as hibernate-envers (because envers depends on entitymanager)
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* _classes_ - Compiles the main classes
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* _testClasses_ - Compiles the test classes
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* _compile_ (Hibernate addition) - Performs all compilation tasks including staging resources from both main and test
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* _jar_ - Generates a jar archive with all the compiled classes
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* _test_ - Runs the tests
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* _publish_ - Think Maven deploy
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* _publishToMavenLocal_ - Installs the project jar to your local maven cache (aka ~/.m2/repository). Note that Gradle
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never uses this, but it can be useful for testing your build with other local Maven-based builds.
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* _eclipse_ - Generates an Eclipse project
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* _idea_ - Generates an IntelliJ/IDEA project (although the preferred approach is to use IntelliJ's Gradle import).
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* _clean_ - Cleans the build directory
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