hello back!
try
<property name="toplink.weaving" value="false"/>
that's usually the source of crazy persistence errors with glassfish
(eclipselink.weaving)
HTH,
Chris
On 23/11/2011, at 8:02 PM, saurabh.jain wrote:
> Hello,
>
>
>
> While I am trying to display tapestry grid it throws following exception.
>
>
>
> Render queue error in SetupRender[Displayperson:grid]: Failure reading
> parameter 'source' of component Displayperson:grid: Failed to create
> EntityManagerFactory for persistence unit 'JPATESTDB'
>
>
>
> My persistence.xml looks like as
>
>
>
> <?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
> persistence_2_0.xsd
> <http://java.sun.com/xml/ns/persistence%20persistence_2_0.xsd> "
>
> version="2.0">
>
> <persistence-unit name="JPATESTDB" transaction-type="RESOURCE_LOCAL">
>
> <exclude-unlisted-classes>false</exclude-unlisted-classes>
>
> <properties>
>
> <property name="javax.persistence.jdbc.driver"
> value="oracle.jdbc.driver.OracleDriver"/>
>
> <property name="javax.persistence.jdbc.url"
> value="jdbc:oracle:thin:@172.20.1.115:5584:PLTDEV"/>
>
> <property name="javax.persistence.jdbc.user" value="rage"/>
>
> <property name="javax.persistence.jdbc.password" value="RAGE"/>
>
> </properties>
>
> </persistence-unit>
>
> </persistence>
>
>
>
> My tml file.
>
>
>
> <html t:type="layout" title="Person List"
>
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_3.xsd";>
>
>
>
> <h1>Person List</h1>
>
>
>
> <t:grid source="persons" t:include="fname,lname,age"/>
>
>
>
> <t:form t:id="displayperson">
>
>
>
> <table>
>
> <tr>
>
> <td>
>
> <t:submit t:id="submit"
> value="New Person"/>
>
> </td>
>
> </tr>
>
> </table>
>
>
>
> </t:form>
>
>
>
> </html>
>
>
>
> My corresponding component class.
>
>
>
> package com.rage.tutorial.pages;
>
>
>
> import java.util.List;
>
>
>
> import org.apache.tapestry5.annotations.InjectPage;
>
>
>
> import com.rage.tutorial.entities.Person;
>
> import javax.persistence.EntityManager;
>
> import javax.persistence.PersistenceContext;
>
>
>
> /**
>
> * Start page of application tutorial1.
>
> */
>
> public class Displayperson
>
> {
>
>
>
> @PersistenceContext(unitName = "JPATESTDB")
>
> private EntityManager entityManager;
>
>
>
> @InjectPage
>
> private Createperson createperson;
>
>
>
> public List<Person> getPersons()
>
> {
>
> return entityManager.createQuery("from
> Person", Person.class).getResultList();
>
> }
>
>
>
> Object onSuccessFromDisplayperson()
>
> {
>
> return createperson;
>
> }
>
> }
>
>
>
> So please help.
>
>
>
> Thanks & Regards,
>
>
>
> Saurabh Jain
>
>
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