manual/working/javaGuide/main/sql/JavaJPA.md

[garbagetown]

• https://github.com/playframework-ja/translation-project/tree//2.4.x/manual/working/javaGuide/main/sql/JavaJPA.md
• diffs between 2.2.0/manual/working/javaGuide/main/sql/JavaJPA.md and 2.4.x/manual/working/javaGuide/main/sql/JavaJPA.md.

--- /Users/garbagetown/Desktop/2.2.0/manual/working/javaGuide/main/sql/JavaJPA.md   2016-02-07 23:19:03.000000000 +0900
+++ //Users/garbagetown/Desktop/2.4.x/manual/working/javaGuide/main/sql/JavaJPA.md  2016-02-07 23:19:30.000000000 +0900
@@ -1,3 +1,4 @@
+<!--- Copyright (C) 2009-2015 Typesafe Inc. <http://www.typesafe.com> -->
 # Integrating with JPA

 ## Adding dependencies to your project
@@ -7,15 +8,15 @@
 There is no built-in JPA implementation in Play; you can choose any available implementation. For example, to use Hibernate, just add the dependency to your project:

 '''
-val appDependencies = Seq(
+libraryDependencies ++= Seq(
   javaJpa,
-  "org.hibernate" % "hibernate-entitymanager" % "3.6.9.Final" // replace by your jpa implementation
+  "org.hibernate" % "hibernate-entitymanager" % "4.3.9.Final" // replace by your jpa implementation
 )
 '''

 ## Exposing the datasource through JNDI

-JPA requires the datasource to be accessible via JNDI. You can expose any Play-managed datasource via JDNI by adding this configuration in `conf/application.conf`:
+JPA requires the datasource to be accessible via JNDI. You can expose any Play-managed datasource via JNDI by adding this configuration in `conf/application.conf`:

 '''
 db.default.driver=org.h2.Driver
@@ -30,13 +31,13 @@
 Here is a sample configuration file to use with Hibernate:

 '''
-<persistence xmlns="http://java.sun.com/xml/ns/persistence"
+<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
-             version="2.0">
+             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"
+             version="2.1">

     <persistence-unit name="defaultPersistenceUnit" transaction-type="RESOURCE_LOCAL">
-        <provider>org.hibernate.ejb.HibernatePersistence</provider>
+        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
         <non-jta-data-source>DefaultDS</non-jta-data-source>
         <properties>
             <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
@@ -49,9 +50,18 @@
 Finally you have to tell Play, which persistent unit should be used by your JPA provider. This is done by the `jpa.default` property in your `application.conf`.

 '''
-jpa.default=defaultPerstistenceUnit
+jpa.default=defaultPersistenceUnit
 '''

+## Deploying Play with JPA
+
+Running Play in development mode while using JPA will work fine, but in order to deploy the application you will need to add this to your `build.sbt` file.
+
+@[](code/jpa.sbt)
+
+Since Play 2.4 the contents of the `conf` directory are added to the classpath by default. This option will disable that behavior and allow a JPA application to be deployed. Note that the content of conf directory will still be available in the classpath due to it being inclued in the applications jar file.
+
+
 ## Annotating JPA actions with `@Transactional`

 Every JPA call must be done in a transaction so, to enable JPA for a particular action, annotate it with `@play.db.jpa.Transactional`. This will compose your action method with a JPA `Action` that manages the transaction for you:
@@ -63,7 +73,7 @@
 }
 '''

-If your action perfoms only queries, you can set the `readOnly` attribute to `true`:
+If your action runs only queries, you can set the `readOnly` attribute to `true`:

 '''
 @Transactional(readOnly=true)
@@ -82,4 +92,6 @@
 }
 '''

-> **Next:** [[Using the cache | JavaCache]]
+## Enabling Play database evolutions
+
+Read [[Evolutions]] to find out what Play database evolutions are useful for, and follow the setup instructions for using it.
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