No I have followed your instruction, here is my code:
MySite.java:
package test;
@javax.persistence.Entity
@javax.persistence.Table(name="SI_SITE")
public class MySite {
@javax.persistence.Column(name="siteId")
@javax.persistence.Id
private java.lang.Long siteId;
@javax.persistence.Column(name="name")
private java.lang.String name;
@javax.persistence.Column(name="description")
private java.lang.String description;
@javax.persistence.Column(name="staticSite")
private boolean staticSite;
@javax.persistence.Column(name="status")
private int status;
public MySite() {
}
... getter and setter for the previous attributes
}
The client (part of a session bean):
EjbLocator ejbLocator=EjbLocator.getLocator();
MySite siteEJB3=ejbLocator.find(MySite.class, new Long(1));
EjbLocator.java:
public class EjbLocator {
@PersistenceContext(unitName="StatInfoUnit")
private EntityManager manager;
private static Context ctx;
private static EjbLocator instance = new EjbLocator();
private EjbLocator() {
try {
ctx = new InitialContext();
} catch (NamingException e) {
logger.error(e.getMessage());
}
}
public static EjbLocator getLocator() {
return instance;
}
private T getEjb(Class ejbClass, String name) {
try {
T service = (T) new InitialContext().lookup("Statinfo/"
+ name
+ "/local");
return service;
} catch (NamingException e) {
return null;
}
}
public T find(Class ejb3Class, Object id) {
return manager.find(ejb3Class, id);
}
public void persist(Object ejb3Object) {
manager.persist(ejb3Object);
}
}
I have a persistence.xml in META-INF dir:
<persistence-unit name="StatInfoUnit">
<jta-data-source>java:/StatInfoDS</jta-data-source>
<!-- Explicitly define mapping file path, else Hibernate won't find
the default -->
<mapping-file>META-INF/orm.xml</mapping-file>
test.MySite
<!-- exclude-unlisted-classes=true: Prevent annotation
scanning. In this app we are purely driven by orm.xml -->
<exclude-unlisted-classes>false</exclude-unlisted-classes>
org.hibernate.ejb.HibernatePersistence
</persistence-unit>
I have a orm.xml in META-INF dir:
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings
xmlns="http://java.sun.com/xml/ns/persistence/orm";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm orm_1_0.xsd"
version="1.0">
<persistence-unit-metadata>
</persistence-unit-metadata>
</entity-mappings>
Deployment is OK but the exception (Nullpointer) occurs when the client part is
called, any idea?
Thanks a lot for your help,
JF
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