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accessing persistence unit in jar.
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created by <a href="http://community.jboss.org/people/monty_hall">Monty Hall</a> in <i>Beginner's Corner</i> - <a href="http://community.jboss.org/message/643212#643212">View the full discussion</a>
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<div class="jive-rendered-content"><p>New to jboss and created the following projects using jboss tools in eclipse.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: 'courier new', courier;">Name                  Eclipse Project</span></p><p><span style="font-family: 'courier new', courier;">EAR                   EAR Project</span></p><p><span style="font-family: 'courier new', courier;">EJB                   EJB Project</span></p><p><span style="font-family: 'courier new', courier;">PERSISTENCE           JPA Project</span></p><p><span style="font-family: 'courier new', courier;">WEB                   Dynamic Web Project<br/></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In a backing bean in the WEB project, I cannot create an entity manager.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: 'courier new', courier;">@Named</span></p><p><span style="font-family: 'courier new', courier;">@RequestScoped</span></p><p><span style="font-family: 'courier new', courier;">public class UserAction {</span></p><p><span style="font-family: 'courier new', courier;">          @PersistenceContext</span></p><p><span style="font-family: 'courier new', courier;">          private EntityManager em;</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: 'courier new', courier;">          public String getText() {</span></p><p><span style="font-family: 'courier new', courier;">                    return "UserAction";</span></p><p><span style="font-family: 'courier new', courier;">          }</span></p><p><span style="font-family: 'courier new', courier;">}</span></p><p><span style="font-family: 'courier new', courier;"><br/></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-family: 'courier new', courier;">I've tried '@PersistenceContext(unitName="PERSISTENCE")' and <span style="font-family: 'courier new', courier;">'@PersistenceContext(unitName="PERSISTENCE.jar#PERSISTENCE")' no luck.</span><br/></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Monty</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>-------------------------------------------</p><p><span style="font-family: 'courier new', courier;">The persistence.xml in the PERSISTENCE project is:</span></p><p><span style="font-family: 'courier new', courier;"><br/></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;"><?xml version="1.0" encoding="UTF-8"?></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;"><span><persistence version="2.0" xmlns="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span>" xmlns:xsi="</span><a class="jive-link-external-small" href="http://www.w3.org/2001/XMLSchema-instance" target="_blank">http://www.w3.org/2001/XMLSchema-instance</a><span>" xsi:schemaLocation="</span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence" target="_blank">http://java.sun.com/xml/ns/persistence</a><span> </span><a class="jive-link-external-small" href="http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" target="_blank">http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd</a><span>"></span></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          <persistence-unit name="PERSISTENCE"></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">                    <jta-data-source>java:jboss/datasources/xxxx</jta-data-source></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">                    <exclude-unlisted-classes>false</exclude-unlisted-classes></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;">          </persistence-unit></span></p><p style="padding-left: 30px;"><span style="font-family: 'courier new', courier;"></persistence></span></p><p><span style="font-family: 'courier new', courier;"><br/></span></p></div>
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