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<h1>Alternate Descriptors</h1>
</div>
</div>
</div>
<div class="row">
<div class="col-md-12">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>See the <a href="../../alternate-descriptors.html">Alternate Descriptors</a>
page for the full details of how this feature works.</p>
</div>
<div class="paragraph">
<p>For our example we’ll use the standard <code>`moviefun'' code which contains
a `Movie</code> entity and <code>Movies</code> session bean. To add a twist for testing
and demonstrate alternate descriptors, we will create an interceptor
that will be used only in our test cases.</p>
</div>
<div class="paragraph">
<p>To add this to our application, we simply need a <code>test.ejb-jar.xml</code> in
the same location that the regular <code>ejb-jar.xml</code> would be expected.</p>
</div>
<div class="paragraph">
<p>That gives us the following files in our project:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>src/main/resources/META-INF/ejb-jar.xml</p>
</li>
<li>
<p>src/main/resources/META-INF/persistence.xml</p>
</li>
<li>
<p>src/main/resources/META-INF/test.ejb-jar.xml</p>
</li>
</ul>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_the_test_ejb_jar_xml">The test.ejb-jar.xml</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The normal <code>ejb-jar.xml</code> simply contains <code>&lt;ejb-jar/&gt;</code>, however the
<code>test.ejb-jar.xml</code> we add an extra interceptor:</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-xml" data-lang="xml">&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt;
&lt;ejb-jar xmlns="http://java.sun.com/xml/ns/javaee"&gt;
&lt;assembly-descriptor&gt;
&lt;interceptor-binding&gt;
&lt;ejb-name&gt;Movies&lt;/ejb-name&gt;
&lt;interceptor-class&gt;org.superbiz.altdd.MoviesTest$Interceptor&lt;/interceptor-class&gt;
&lt;/interceptor-binding&gt;
&lt;/assembly-descriptor&gt;
&lt;/ejb-jar&gt;</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_the_testcase">The TestCase</h2>
<div class="sectionbody">
<div class="paragraph">
<p>To enable our <code>test.ejb-jar.xml</code> in the test case, we simply set the
<code>openejb.altdd.prefix</code> property when creating the embedded
<code>EJBContainer</code></p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java"> public class MoviesTest extends TestCase {
@EJB
private Movies movies;
@Resource
private UserTransaction userTransaction;
@PersistenceContext
private EntityManager entityManager;
public void setUp() throws Exception {
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");
p.put("openejb.altdd.prefix", "test");
EJBContainer.createEJBContainer(p).getContext().bind("inject", this);
}
public void test() throws Exception {
userTransaction.begin();
try {
entityManager.persist(new Movie("Quentin Tarantino", "Reservoir Dogs", 1992));
entityManager.persist(new Movie("Joel Coen", "Fargo", 1996));
entityManager.persist(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());
} finally {
try {
userTransaction.commit();
fail("Transaction should have been rolled back");
} catch (RollbackException e) {
// Good, we don't want to clean up the db
}
}
}
public static class Interceptor {
@Resource
private SessionContext sessionContext;
@AroundInvoke
public Object invoke(InvocationContext context) throws Exception {
sessionContext.setRollbackOnly();
return context.proceed();
}
}
}</code></pre>
</div>
</div>
<div class="paragraph">
<p>As noted in <a href="../../alternate-descriptors.html">the documentation</a>,
several prefixes can be used at once.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_running">Running</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-console" data-lang="console">-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running org.superbiz.altdd.MoviesTest
Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06
http://tomee.apache.org/
INFO - openejb.home = /Users/dblevins/examples/alternate-descriptors
INFO - openejb.base = /Users/dblevins/examples/alternate-descriptors
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/alternate-descriptors/target/classes
INFO - Beginning load: /Users/dblevins/examples/alternate-descriptors/target/classes
INFO - AltDD ejb-jar.xml -&gt; file:/Users/dblevins/examples/alternate-descriptors/target/classes/META-INF/test.ejb-jar.xml
INFO - Configuring enterprise application: /Users/dblevins/examples/alternate-descriptors
WARN - Method 'lookup' is not available for 'javax.annotation.Resource'. Probably using an older Runtime.
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.altdd.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/alternate-descriptors" loaded.
INFO - Assembling app: /Users/dblevins/examples/alternate-descriptors
INFO - PersistenceUnit(name=movie-unit, provider=org.apache.openjpa.persistence.PersistenceProviderImpl) - provider time 411ms
INFO - Jndi(name="java:global/alternate-descriptors/Movies!org.superbiz.altdd.Movies")
INFO - Jndi(name="java:global/alternate-descriptors/Movies")
INFO - Jndi(name="java:global/EjbModule1893321675/org.superbiz.altdd.MoviesTest!org.superbiz.altdd.MoviesTest")
INFO - Jndi(name="java:global/EjbModule1893321675/org.superbiz.altdd.MoviesTest")
INFO - Created Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container)
INFO - Created Ejb(deployment-id=org.superbiz.altdd.MoviesTest, ejb-name=org.superbiz.altdd.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.altdd.MoviesTest, ejb-name=org.superbiz.altdd.MoviesTest, container=Default Managed Container)
INFO - Deployed Application(path=/Users/dblevins/examples/alternate-descriptors)
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.569 sec
Results :
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0</code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_warning_on_tooling">Warning on Tooling</h2>
<div class="sectionbody">
<div class="paragraph">
<p>If you split your descriptors into separate directories, this support
will not work. Specifically, this will not work:</p>
</div>
<div class="ulist">
<ul>
<li>
<p>src/main/resources/META-INF/ejb-jar.xml</p>
</li>
<li>
<p>src/main/resources/META-INF/persistence.xml</p>
</li>
<li>
<p>src/<strong>test</strong>/resources/META-INF/test.ejb-jar.xml</p>
</li>
</ul>
</div>
<div class="paragraph">
<p>This support is <strong>not</strong> aware of any Maven, Gradle, Ant, IntelliJ,
NetBeans, Eclipse or other settings.</p>
</div>
</div>
</div>
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