//my /conf/persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright 2006 Sun Microsystems, Inc. All rights reserved.
You may not modify, use, reproduce, or distribute this software except
in compliance with the terms of the License at:
http://developer.sun.com/berkeley_license.html
$Id: persistence.xml,v 1.2 2007/01/25 20:49:06 yutayoshida Exp $ -->
<persistence version="1.0" 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">
<!-- this is the unit-name from PersistenceContext -->
<persistence-unit name="PetCatalogPu" transaction-type="JTA">
<jta-data-source>jdbc/PETCatalogDB</jta-data-source>
<properties/>
</persistence-unit>
</persistence>
/***********public interface CatalogFacade ***********/
package sessionpagination.model;
import java.util.Collection;
import java.util.List;
public interface CatalogFacade {
public Item getItem(String itemID);
public Category getCategory(String id);
public List getCategorys();
public int getItemCount();
public List<Item> getItems(int firstItem,int batchSize );
}
/***********public class CatalogFacadeBean ***********/
package sessionpagination.model;
import java.util.Collection;
import java.util.List;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
//Local is useless for our purposes
//BEAN implements the Facade
@Stateless
public class CatalogFacadeBean implements CatalogFacade {
//unitName is what JNDI LOOKUP uses to lookup this bean
@PersistenceContext(unitName="PetCatalogPu")
private EntityManager em;
public Item getItem(String itemID)
{
Item item = em.find(Item.class,itemID);
return item;
}
public Category getCategory(String id)
{
Category category = em.find(Category.class,id);
return category;
}
@TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)
public List<Item> getItems(int firstItem,int batchSize) {
Query q = em.createQuery("select object(o) from Item as o");
q.setMaxResults(batchSize);
q.setFirstResult(firstItem);
List<Item> items= q.getResultList();
return items;
}
@SuppressWarnings("unchecked")
public List getCategorys() {
Query q = em.createQuery("select object(o) from Category as o");
List<Category> categories= q.getResultList();
return categories;
}
public int getItemCount() {
Query q = em.createQuery("select count(o) from Item as o");
int count = ((Long)q.getSingleResult()).intValue();
return count;
}
}
HTH
Martin Gainty
______________________________________________
Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité
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> Folks:
>
> I am using Glassfish V2.1.
>
> I am trying to deploy and use an EJB (Version 3). The EJB is part of a complete Enterprise application. It is within a JAR that is deployed with a WAR within an EAR.
>
> The EJB is pretty straightforward. It uses a local interface:
>
> @Local
//no facade?
> public interface CategoriesLocal
> {
//what does this do?
> public int save(Categories nwCategory);
> }
//any accessors for this interface????????????
> and the bean itself is more a skeleton than anything else:
>
> @Stateless
> public class CategoriesFacade implements CategoriesLocal
> {
>
> /**
> * Default constructor.
> */
> public CategoriesFacade() {
> }
>
> @Override
> public int save(Categories nwCategory) {
> return 0;
//?
> }
>
> The client code, at the moment, uses old- style JNDI (because DI is failing for some reason):
>
> try
> {
> InitialContext ctx = new InitialContext();
> CategoriesLocal local = (CategoriesLocal )ctx.lookup("com.path.CategoriesFacade");
> .
> .
> .
>
> Based on documentation of EJB3 and Glassfish, the client code should be able to get an instance of the facade from the server. But when the client code is run, I get the following exception:
>
> WARNING: javax.naming.NameNotFoundException: com.path.CategoriesFacade not found
> at com.sun.enterprise.naming.TransientContext.doLookup(TransientContext.java:216)
> at com.sun.enterprise.naming.TransientContext.lookup(TransientContext.java:188)
> at com.sun.enterprise.naming.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:74)
> at
> <other lines omitted for brevity>
>
> Obviously, I am missing something. Can someone tell me why this is not working???
> [Message sent by forum member 'factor_3' (factor_3)]
>
> http://forums.java.net/jive/thread.jspa?messageID=347582
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe_at_glassfish.dev.java.net
> For additional commands, e-mail: users-help_at_glassfish.dev.java.net
>
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