JBoss Seam default Persistence Provider is Hibernate. If you want to change the Persistence Provider from Hibernate to OpenJPA, here is a tutorial: http://seamframework.org/Documentation/UsingOpenJPAAsPersistenceProviderInsteadOfHibernate
OK, Here is a method to change the Persistence Provider to EclipseLink.
First. Edit the persistence.xml:
<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/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_1_0.xsd" version="1.0"> <persistence-unit name="opentutorial" transaction-type="RESOURCE_LOCAL"> <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> <non-jta-data-source>jdbc/oracle</non-jta-data-source> <class>com.opentutorial.entity.User</class> <class>com.opentutorial.entity.UserInfo</class> <exclude-unlisted-classes>false</exclude-unlisted-classes> <properties> <property name="eclipselink.target-server" value="JBoss" /> <property name="eclipselink.target-database" value="Oracle" /> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.logging.timestamp" value="true" /> <property name="eclipselink.logging.session" value="true" /> <property name="eclipselink.logging.thread" value="false" /> <property name="eclipselink.logging.exceptions" value="true" /> <property name="eclipselink.cache.type.default" value="NONE" /> </properties> </persistence-unit> </persistence>
- transaction-type must be RESOURCE_LOCAL
- provider change to EclipseLink’s PersistenceProvider
- Must be non-jta-data-source
- Declare all entity class
Now, edit components.xml, add below tag value in components.xml:
<transaction:entity-transaction
entity-manager="#{entityManager}" />
<persistence:entity-manager-factory
persistence-unit-name="opentutorial" name="entityManagerFactory" startup="false" />
<persistence:managed-persistence-context
name="entityManager" auto-create="true" entity-manager-factory="#{entityManagerFactory}" />
<component class="org.jboss.seam.persistence.PersistenceProvider"
name="org.jboss.seam.persistence.persistenceProvider" scope="stateless" />
Now. The seam will use EclipseLink as your PersistenceProvider.
Recommended To You
