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     <h1>Injection of EntityManager Example

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     </h1>
 </div>

 <p><a name="InjectionofEntityManagerExample-Overview"></a></p>

 <h1>Overview</h1>

 <p><object width="400" height="250"><param name="movie"
 value="http://www.youtube.com/v/s4uiIoAehgQ?fs=1&amp;hl=en_US&amp;rel=0"></param><param
 name="allowFullScreen" value="true"></param><param name="allowscriptaccess"
 value="always"></param><embed
 src="http://www.youtube.com/v/s4uiIoAehgQ?fs=1&amp;hl=en_US&amp;rel=0"
 type="application/x-shockwave-flash" allowscriptaccess="always"
 allowfullscreen="true" width="400" height="250"></embed></object></p>

 <p>Shows use of <em>@PersistenceContext</em> to have an <em>EntityManager</em> with an
 <em>EXTENDED</em> persistence context injected into a @Stateful bean.  An EJB 3
 <em>@Entity</em> bean is used with the EntityManager to create, persist and merge
 data to a database.</p>

 <p>If you need to use a TRANSACTION persistence context, see <a href="testing-transactions-example.html">this example</a></p>

 <p><a name="InjectionofEntityManagerExample-Writingaunittestfortheexample"></a></p>

 <h1>Writing a unit test for the example</h1>

 <p>Curious on the InitialContext parameters used?  See the <a href="injection-of-datasource-example.html">Injection of DataSource Example</a>
  for an explanation of how any Resource can be configured via properties in
 the TestCase itself or via an openejb.xml file.</p>

 <h2>Movie</h2>

 <pre><code>package org.superbiz.injection.jpa;
 //START SNIPPET: code

 import javax.persistence.Entity;

 @Entity
 public class Movie {

     private String director;
     private String title;
     private int year;

     public Movie() {
     }

     public Movie(String director, String title, int year) {
         this.director = director;
         this.title = title;
         this.year = year;
     }

     public String getDirector() {
         return director;
     }

     public void setDirector(String director) {
         this.director = director;
     }

     public String getTitle() {
         return title;
     }

     public void setTitle(String title) {
         this.title = title;
     }

     public int getYear() {
         return year;
     }

     public void setYear(int year) {
         this.year = year;
     }
 }
 </code></pre>

 <h2>Movies</h2>

 <pre><code>package org.superbiz.injection.jpa;

 //START SNIPPET: code

 import javax.ejb.Stateful;
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
 import javax.persistence.PersistenceContextType;
 import javax.persistence.Query;
 import java.util.List;

 @Stateful
 public class Movies {

     @PersistenceContext(unitName = "movie-unit", type = PersistenceContextType.EXTENDED)
     private EntityManager entityManager;

     public void addMovie(Movie movie) throws Exception {
         entityManager.persist(movie);
     }

     public void deleteMovie(Movie movie) throws Exception {
         entityManager.remove(movie);
     }

     public List&lt;Movie&gt; getMovies() throws Exception {
         Query query = entityManager.createQuery("SELECT m from Movie as m");
         return query.getResultList();
     }
 }
 </code></pre>

 <h2>persistence.xml</h2>

 <pre><code>&lt;persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0"&gt;

   &lt;persistence-unit name="movie-unit"&gt;
     &lt;jta-data-source&gt;movieDatabase&lt;/jta-data-source&gt;
     &lt;non-jta-data-source&gt;movieDatabaseUnmanaged&lt;/non-jta-data-source&gt;
     &lt;class&gt;org.superbiz.injection.jpa.Movie&lt;/class&gt;

     &lt;properties&gt;
       &lt;property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(ForeignKeys=true)"/&gt;
     &lt;/properties&gt;
   &lt;/persistence-unit&gt;
 &lt;/persistence&gt;
     &lt;!-- END SNIPPET: code --&gt;
 </code></pre>

 <h2>MoviesTest</h2>

 <pre><code>package org.superbiz.injection.jpa;

 import junit.framework.TestCase;

 import javax.ejb.embeddable.EJBContainer;
 import javax.naming.Context;
 import java.util.List;
 import java.util.Properties;

 //START SNIPPET: code
 public class MoviesTest extends TestCase {

     public void test() throws Exception {

         final Properties p = new Properties();
         p.put("movieDatabase", "new://Resource?type=DataSource");
         p.put("movieDatabase.JdbcDriver", "org.hsqldb.jdbcDriver");
         p.put("movieDatabase.JdbcUrl", "jdbc:hsqldb:mem:moviedb");

         final Context context = EJBContainer.createEJBContainer(p).getContext();

         Movies movies = (Movies) context.lookup("java:global/injection-of-entitymanager/Movies");

         movies.addMovie(new Movie("Quentin Tarantino", "Reservoir Dogs", 1992));
         movies.addMovie(new Movie("Joel Coen", "Fargo", 1996));
         movies.addMovie(new Movie("Joel Coen", "The Big Lebowski", 1998));

         List&lt;Movie&gt; list = movies.getMovies();
         assertEquals("List.size()", 3, list.size());

         for (Movie movie : list) {
             movies.deleteMovie(movie);
         }

         assertEquals("Movies.getMovies()", 0, movies.getMovies().size());
     }
 }
 </code></pre>

 <h1>Running</h1>

 <pre><code>-------------------------------------------------------
  T E S T S
 -------------------------------------------------------
 Running org.superbiz.injection.jpa.MoviesTest
 Apache OpenEJB 4.0.0-beta-1    build: 20111002-04:06
 http://tomee.apache.org/
 INFO - openejb.home = /Users/dblevins/examples/injection-of-entitymanager
 INFO - openejb.base = /Users/dblevins/examples/injection-of-entitymanager
 INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
 INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
 INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
 INFO - Configuring Service(id=movieDatabase, type=Resource, provider-id=Default JDBC Database)
 INFO - Found EjbModule in classpath: /Users/dblevins/examples/injection-of-entitymanager/target/classes
 INFO - Beginning load: /Users/dblevins/examples/injection-of-entitymanager/target/classes
 INFO - Configuring enterprise application: /Users/dblevins/examples/injection-of-entitymanager
 INFO - Configuring Service(id=Default Stateful Container, type=Container, provider-id=Default Stateful Container)
 INFO - Auto-creating a container for bean Movies: Container(type=STATEFUL, id=Default Stateful Container)
 INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
 INFO - Auto-creating a container for bean org.superbiz.injection.jpa.MoviesTest: Container(type=MANAGED, id=Default Managed Container)
 INFO - Configuring PersistenceUnit(name=movie-unit)
 INFO - Auto-creating a Resource with id 'movieDatabaseNonJta' of type 'DataSource for 'movie-unit'.
 INFO - Configuring Service(id=movieDatabaseNonJta, type=Resource, provider-id=movieDatabase)
 INFO - Adjusting PersistenceUnit movie-unit &lt;non-jta-data-source&gt; to Resource ID 'movieDatabaseNonJta' from 'movieDatabaseUnmanaged'
 INFO - Enterprise application "/Users/dblevins/examples/injection-of-entitymanager" loaded.
 INFO - Assembling app: /Users/dblevins/examples/injection-of-entitymanager
 INFO - PersistenceUnit(name=movie-unit, provider=org.apache.openjpa.persistence.PersistenceProviderImpl) - provider time 462ms
 INFO - Jndi(name="java:global/injection-of-entitymanager/Movies!org.superbiz.injection.jpa.Movies")
 INFO - Jndi(name="java:global/injection-of-entitymanager/Movies")
 INFO - Jndi(name="java:global/EjbModule1461341140/org.superbiz.injection.jpa.MoviesTest!org.superbiz.injection.jpa.MoviesTest")
 INFO - Jndi(name="java:global/EjbModule1461341140/org.superbiz.injection.jpa.MoviesTest")
 INFO - Created Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container)
 INFO - Created Ejb(deployment-id=org.superbiz.injection.jpa.MoviesTest, ejb-name=org.superbiz.injection.jpa.MoviesTest, container=Default Managed Container)
 INFO - Started Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container)
 INFO - Started Ejb(deployment-id=org.superbiz.injection.jpa.MoviesTest, ejb-name=org.superbiz.injection.jpa.MoviesTest, container=Default Managed Container)
 INFO - Deployed Application(path=/Users/dblevins/examples/injection-of-entitymanager)
 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.301 sec

 Results :

 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
 </code></pre>


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	type="application/x-shockwave-flash" allowscriptaccess="always"
	allowfullscreen="true" width="400" height="250"></embed></object></p>

	<p>Shows use of <em>@PersistenceContext</em> to have an <em>EntityManager</em> with an
	<em>EXTENDED</em> persistence context injected into a @Stateful bean. An EJB 3
	<em>@Entity</em> bean is used with the EntityManager to create, persist and merge
	data to a database.</p>

	<p>If you need to use a TRANSACTION persistence context, see <a href="testing-transactions-example.html">this example</a></p>

	<p><a name="InjectionofEntityManagerExample-Writingaunittestfortheexample"></a></p>

	<h1>Writing a unit test for the example</h1>

	<p>Curious on the InitialContext parameters used? See the <a href="injection-of-datasource-example.html">Injection of DataSource Example</a>
	for an explanation of how any Resource can be configured via properties in
	the TestCase itself or via an openejb.xml file.</p>

	<h2>Movie</h2>

	<pre><code>package org.superbiz.injection.jpa;
	//START SNIPPET: code

	import javax.persistence.Entity;

	@Entity
	public class Movie {

	private String director;
	private String title;
	private int year;

	public Movie() {
	}

	public Movie(String director, String title, int year) {
	this.director = director;
	this.title = title;
	this.year = year;
	}

	public String getDirector() {
	return director;
	}

	public void setDirector(String director) {
	this.director = director;
	}

	public String getTitle() {
	return title;
	}

	public void setTitle(String title) {
	this.title = title;
	}

	public int getYear() {
	return year;
	}

	public void setYear(int year) {
	this.year = year;
	}
	}
	</code></pre>

	<h2>Movies</h2>

	<pre><code>package org.superbiz.injection.jpa;

	//START SNIPPET: code

	import javax.ejb.Stateful;
	import javax.persistence.EntityManager;
	import javax.persistence.PersistenceContext;
	import javax.persistence.PersistenceContextType;
	import javax.persistence.Query;
	import java.util.List;

	@Stateful
	public class Movies {

	@PersistenceContext(unitName = "movie-unit", type = PersistenceContextType.EXTENDED)
	private EntityManager entityManager;

	public void addMovie(Movie movie) throws Exception {
	entityManager.persist(movie);
	}

	public void deleteMovie(Movie movie) throws Exception {
	entityManager.remove(movie);
	}

	public List<Movie> getMovies() throws Exception {
	Query query = entityManager.createQuery("SELECT m from Movie as m");
	return query.getResultList();
	}
	}
	</code></pre>

	<h2>persistence.xml</h2>

	<pre><code><persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">

	<persistence-unit name="movie-unit">
	<jta-data-source>movieDatabase</jta-data-source>
	<non-jta-data-source>movieDatabaseUnmanaged</non-jta-data-source>
	<class>org.superbiz.injection.jpa.Movie</class>

	<properties>
	<property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(ForeignKeys=true)"/>
	</properties>
	</persistence-unit>
	</persistence>
	<!-- END SNIPPET: code -->
	</code></pre>

	<h2>MoviesTest</h2>

	<pre><code>package org.superbiz.injection.jpa;

	import junit.framework.TestCase;

	import javax.ejb.embeddable.EJBContainer;
	import javax.naming.Context;
	import java.util.List;
	import java.util.Properties;

	//START SNIPPET: code
	public class MoviesTest extends TestCase {

	public void test() throws Exception {

	final Properties p = new Properties();
	p.put("movieDatabase", "new://Resource?type=DataSource");
	p.put("movieDatabase.JdbcDriver", "org.hsqldb.jdbcDriver");
	p.put("movieDatabase.JdbcUrl", "jdbc:hsqldb:mem:moviedb");

	final Context context = EJBContainer.createEJBContainer(p).getContext();

	Movies movies = (Movies) context.lookup("java:global/injection-of-entitymanager/Movies");

	movies.addMovie(new Movie("Quentin Tarantino", "Reservoir Dogs", 1992));
	movies.addMovie(new Movie("Joel Coen", "Fargo", 1996));
	movies.addMovie(new Movie("Joel Coen", "The Big Lebowski", 1998));

	List<Movie> list = movies.getMovies();
	assertEquals("List.size()", 3, list.size());

	for (Movie movie : list) {
	movies.deleteMovie(movie);
	}

	assertEquals("Movies.getMovies()", 0, movies.getMovies().size());
	}
	}
	</code></pre>

	<h1>Running</h1>

	<pre><code>-------------------------------------------------------
	T E S T S
	-------------------------------------------------------
	Running org.superbiz.injection.jpa.MoviesTest
	Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06
	http://tomee.apache.org/
	INFO - openejb.home = /Users/dblevins/examples/injection-of-entitymanager
	INFO - openejb.base = /Users/dblevins/examples/injection-of-entitymanager
	INFO - Using 'javax.ejb.embeddable.EJBContainer=true'
	INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service)
	INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager)
	INFO - Configuring Service(id=movieDatabase, type=Resource, provider-id=Default JDBC Database)
	INFO - Found EjbModule in classpath: /Users/dblevins/examples/injection-of-entitymanager/target/classes
	INFO - Beginning load: /Users/dblevins/examples/injection-of-entitymanager/target/classes
	INFO - Configuring enterprise application: /Users/dblevins/examples/injection-of-entitymanager
	INFO - Configuring Service(id=Default Stateful Container, type=Container, provider-id=Default Stateful Container)
	INFO - Auto-creating a container for bean Movies: Container(type=STATEFUL, id=Default Stateful Container)
	INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container)
	INFO - Auto-creating a container for bean org.superbiz.injection.jpa.MoviesTest: Container(type=MANAGED, id=Default Managed Container)
	INFO - Configuring PersistenceUnit(name=movie-unit)
	INFO - Auto-creating a Resource with id 'movieDatabaseNonJta' of type 'DataSource for 'movie-unit'.
	INFO - Configuring Service(id=movieDatabaseNonJta, type=Resource, provider-id=movieDatabase)
	INFO - Adjusting PersistenceUnit movie-unit <non-jta-data-source> to Resource ID 'movieDatabaseNonJta' from 'movieDatabaseUnmanaged'
	INFO - Enterprise application "/Users/dblevins/examples/injection-of-entitymanager" loaded.
	INFO - Assembling app: /Users/dblevins/examples/injection-of-entitymanager
	INFO - PersistenceUnit(name=movie-unit, provider=org.apache.openjpa.persistence.PersistenceProviderImpl) - provider time 462ms
	INFO - Jndi(name="java:global/injection-of-entitymanager/Movies!org.superbiz.injection.jpa.Movies")
	INFO - Jndi(name="java:global/injection-of-entitymanager/Movies")
	INFO - Jndi(name="java:global/EjbModule1461341140/org.superbiz.injection.jpa.MoviesTest!org.superbiz.injection.jpa.MoviesTest")
	INFO - Jndi(name="java:global/EjbModule1461341140/org.superbiz.injection.jpa.MoviesTest")
	INFO - Created Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container)
	INFO - Created Ejb(deployment-id=org.superbiz.injection.jpa.MoviesTest, ejb-name=org.superbiz.injection.jpa.MoviesTest, container=Default Managed Container)
	INFO - Started Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container)
	INFO - Started Ejb(deployment-id=org.superbiz.injection.jpa.MoviesTest, ejb-name=org.superbiz.injection.jpa.MoviesTest, container=Default Managed Container)
	INFO - Deployed Application(path=/Users/dblevins/examples/injection-of-entitymanager)
	Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.301 sec

	Results :

	Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
	</code></pre>




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