Jdeveloper 11 and/or toplink-jpa problem

Hello,
We have a big problem with toplink-jpa or jdev 11. I tried something very similar to the jdev/jpa tutorial (http://download-uk.oracle.com/otn_hosted_doc/jdeveloper/11/demos/JPA/JPA_Demo.html), only adapted to our db. I've been trying to solve this for hours, but whenever we run the sample facade client we created, we get this as only output:
Error opening zip file: toplink/jlib/essentials-agent.jar
Error occurred during initialization of VM
agent library failed to init: instrument
Process exited with exit code 1.
I would greatly appreciate some support, I'm desesperate, this project being an experiment to see how we can evolve from "classic" toplink to toplink/jpa.

Please also note: I tried this with jre 1.5.0.6 and 1.6.0.1 . The first one says "Error opening zip file: toplink/jlib/essentials-agent.jar", 1.6 says "Error opening zip file or JAR manifest missing : toplink/jlib/essentials-agent.jar".
I also tried the 1.5.0.6 jvm which comes with jdev 10.x, which doesn't say (or does) anything.
I downloaded the las version of toplink/jpa, without any change.
All help greatly appreciated :-/

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Weblogic 9.1 with toplink JPA - Problem creating entityManagerFactory

I am using weblogic 9.1 with toplink jpa provider.
I am getting the error while creating entityManagerFactory.
Exception stack trace
faces.FacesException: #{LogonMB.authenticateLogin}: javax.faces.el.EvaluationException: java.lang.ExceptionInInitializerError
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
     at javax.faces.component.UICommand.broadcast(UICommand.java:332)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:287)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:401)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:95)
     at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268)
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     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:213)
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     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:165)
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     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:1973)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1880)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1310)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:179)
Caused by: javax.faces.el.EvaluationException: java.lang.ExceptionInInitializerError
     at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:150)
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     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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Internal Exception: org.xml.sax.SAXNotRecognizedException: http://java.sun.com/xml/jaxp/properties/schemaLanguage
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     at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
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hi JavaCrazyLover
u got why u getting the error i ma getting similar error its running fine in 8.1 but in web9.1 it is giving errors in some jsp pages may be due to versions or name spacing ie we write in top of the page DTD schema am not sure but i think , there is no jars to add on as such web 9.1 is upgraded one and it supports all files some where there will be conflicts between versions example JDK 1.5and 1.4 enum is a keyword in 9.1 but in normal in 8.1 if u get the solution for this error please mail me to [email protected]
rgds
Mohammed Mansoor

Toplink JPA Problem

Please i have this problem wth toplink in netbeans 6.1
The reason am bringin this here is that it uses toplink implementation of JPA
I have two projects
1.project A
2. Project b
In project A i have a database with Users,Contacts tables with a datasource configured as projectAdDS pointing to projectADb
In projectB i have a different database with Users,Contacts tables with a datasource configured as projectBdDS pointing to projectBDb
Now the generated Entity Classes for each projects is Users , Contacts. They have the same name but different package name
in project a the Users Entity classes is com.projectA.Users while in projectB is com.projectB.Users.
Now the problem is where the webapplication of projectA tries to save a Users it save it in projectB database.
That is the problem even when the two persistent are pointing to two different datasources.
Project A Persistent. XML
<?xml version="1.0" encoding="UTF-8"?>
<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">
<persistence-unit name="RestfulPU" transaction-type="JTA">
    <jta-data-source>phonebookdb</jta-data-source>
    <class>com.chineduefoagui.entity.Contacts</class>
    <class>com.chineduefoagui.entity.Users</class>
    <class>com.chineduefoagui.entity.Userdetails</class>
    <exclude-unlisted-classes>true</exclude-unlisted-classes>
    <properties/>
</persistence-unit>
</persistence><?xml version="1.0" encoding="UTF-8"?>
<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">
<persistence-unit name="SoapProPU" transaction-type="JTA">
<jta-data-source>soapphonebook</jta-data-source>
<class>com.chineduefoagui.soap.entity.Users</class>
<class>com.chineduefoagui.soap.entity.Contacts</class>
<class>com.chineduefoagui.soap.entity.Userdetails</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties/>
</persistence-unit>
</persistence>

Yes,
It looks like you are getting 2 connection attempts for phonebookdb (2 is normal) but receive soapphonebook as the connection - this is odd.
But, I am working fine. In my application which is working now with <exclude-unlisted-classes>true</exclude-unlisted-classes> on "all" persistence units
I am working with two (Cell) entities in different packages (both are in the EJB jar). So this is either an issue with entities in the WAR or it is a db platform issue surrounding JavaDB
See a screencap of both persistence units working on two different datasources with the same entity "alias" but different packages
[http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial#Two_Persistence_Units]
For reference I get the same 4 logs when I attempt a single JTA connection but in my case my datasource name is listed as null even though my app continues on ok.
In the case of using both persistence units I get 2 sets of 4 logs = 8 for the 4 connections to the 2 datasources
The two datasources in my case are Oracle11g (remoteJTA) and Oracle10g (localJTA) - both using the same 11g driver - so it is easier to tell them apart in the logs.
[EL Example|http://forums.oracle.com/forums/]: enterprise: Object: org.eclipse.persistence.example.jpa.server.entity.Cell@26145598( id: 1 state: null left: null right: null parent: HashSet@234560 references: HashSet@234560)
When i use the exampleDuplicate persistence unit i get a login for the first datasource
Oracle 10g = remoteJTA datasource
[EL Fine|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.356--Thread(Thread[)--Detected Vendor platform: org.eclipse.persistence.platform.database.oracle.Oracle10Platform
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.403--ServerSession(3303389)--Connection(18436986)--Thread(Thread[)--connecting(DatabaseLogin(
platform=>Oracle10Platform
user name=> ""
connector=>JNDIConnector datasource name=>null
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.419--ServerSession(3303389)--Connection(28810575)--Thread(Thread[)--Connected: jdbc:oracle:thin:@127.0.0.1:1521:orcl
User: SCOTT
Database: Oracle Version: Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Driver: Oracle JDBC driver Version: 11.1.0.7.0-Production
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.419--ServerSession(3303389)--Connection(28892307)--Thread(Thread[)--connecting(DatabaseLogin(
platform=>Oracle10Platform
user name=> ""
connector=>JNDIConnector datasource name=>null
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.419--ServerSession(3303389)--Connection(26833471)--Thread(Thread[)--Connected: jdbc:oracle:thin:@127.0.0.1:1521:orcl
User: SCOTT
Database: Oracle Version: Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Driver: Oracle JDBC driver Version: 11.1.0.7.0-Production
[EL Finest|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.419--ServerSession(3303389)--Thread(Thread[)--sequencing connected, state is Preallocation_NoTransaction_State
and the persist call
[EL Example|http://forums.oracle.com/forums/]: enterprise: ApplicationService persisting: [email protected]( id: null state: null left: null right: null parent: HashSet@18981093 references: HashSet@18981093) on EM: org.eclipse.persistence.internal.jpa.EntityManagerImpl@1a7ed8f> later when I use the other example persistence unit i get a login for the second datasource
Oracle 11g = localJTA datasource
[EL Fine|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.966--Thread(Thread[)--Detected Vendor platform: org.eclipse.persistence.platform.database.oracle.Oracle10Platform
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.966--ServerSession(25279766)--Connection(13859800)--Thread(Thread[)--connecting(DatabaseLogin(
platform=>Oracle10Platform
user name=> ""
connector=>JNDIConnector datasource name=>null
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.966--ServerSession(25279766)--Connection(6794127)--Thread(Thread[)--Connected: jdbc:oracle:thin:@10.156.53.19:1521:orcl
User: SCOTT
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 11.1.0.7.0-Production
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.966--ServerSession(25279766)--Connection(3176465)--Thread(Thread[)--connecting(DatabaseLogin(
platform=>Oracle10Platform
user name=> ""
connector=>JNDIConnector datasource name=>null
[EL Config|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.997--ServerSession(25279766)--Connection(1751745)--Thread(Thread[)--Connected: jdbc:oracle:thin:@10.156.53.19:1521:orcl
User: SCOTT
Database: Oracle Version: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
Driver: Oracle JDBC driver Version: 11.1.0.7.0-Production
[EL Finest|http://forums.oracle.com/forums/]: 2008.12.15 15:43:56.997--ServerSession(25279766)--Thread(Thread[)--sequencing connected, state is Preallocation_NoTransaction_State
and the persist call
[EL Example|http://forums.oracle.com/forums/]: enterprise: ApplicationService2 persisting: org.eclipse.persistence.example.jpa.server.entity.Cell@20979305( id: null state: null left: null right: null parent: HashSet@14247956 references: HashSet@14247956) on EM: org.eclipse.persistence.internal.jpa.EntityManagerImpl@14bf56d
Here is my whole persistence unit (note I am not using the RESOURCE_LOCAL one but I still need an exclude on it
.<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]">
<persistence-unit name="exampleDuplicate" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>remoteJTA</jta-data-source>
<class>org.eclipse.persistence.example.jpa.server.entity.Cell</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.logging.level" value="FINEST"/>
</properties>
</persistence-unit>
<persistence-unit name="example" transaction-type="JTA">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>localJTA</jta-data-source>
<class>org.eclipse.persistence.example.jpa.server.business.Cell</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-server" value="WebLogic_10"/>
<property name="eclipselink.logging.level" value="FINEST"/>
</properties>
</persistence-unit>
<persistence-unit name="exampleLocal" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>org.eclipse.persistence.example.jpa.server.business.Cell</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="eclipselink.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="eclipselink.jdbc.platform" value="org.eclipse.persistence.platform.database.oracle.OraclePlatform"/>
<property name="eclipselink.jdbc.url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl"/>
<property name="eclipselink.jdbc.user" value="scott"/>
<property name="eclipselink.jdbc.password" value="tiger"/>
</properties>
</persistence-unit>
</persistence>
I also do not see anything from the persistence unit "SoapProPU" in the logs from your servlet. Have you initialized both persistence units there or are there logs from the other servlet?
For example I used the following servlet with 2 references to session beans that in turn reference the 2 pu's - or you could just use persistence unit injection on the servlet.
public class FrontController extends HttpServlet implements Servlet {
@EJB(beanName="ApplicationService")
public ApplicationServiceLocal applicationService;
@EJB(beanName="ApplicationService2")
public ApplicationServiceLocal2 applicationService2;
@Local @Stateless
public class ApplicationService2 implements ApplicationServiceLocal2 {
@PersistenceContext(unitName="exampleDuplicate", type=PersistenceContextType.TRANSACTION)
private EntityManager entityManager;
@Local@Stateless
public class ApplicationService implements ApplicationServiceLocal {
@PersistenceContext(unitName="example", type=PersistenceContextType.TRANSACTION)
private EntityManager entityManager;
This may be DB platform specific, I think a reproduction on the same JavaDBPlatform is required on our side.
You may be right about the alias name that is narrowed to Userdetails (with no qualifying package). I see the same message when creating the EntityManagerFactory for the particular PU from....
m_entityName = Helper.getShortClassName(getJavaClassName());
getLogger().logConfigMessage(MetadataLogger.ALIAS, getDescriptor(), m_entityName);
and get further because I forgot to add the following exclude so that predeploy does not pick up classes from the persistence.xml classpath.
<exclude-unlisted-classes>true</exclude-unlisted-classes>
I wil let you know when I have switched my reproduction to use JavaDB.
thank you
/michael [http://www.eclipselink.org/]

Toplink-jpa and/or jdev11 problem

Hi,
How should I configure a toplink/jpa application in oc4j 11? Mine doesn't seem to be able to be able to connect... But I guess I didn't configure correctly.
Anyway, it works in the jdevelopper 11 (technical preview) embedded oc4j. I can deploy it ok from jdeveloper, and even connect to the session beans on the server from another application (swing client, independant).
But whenever my beans try to make a request, I get this exception:
exception occurred during method invocation:
javax.ejb.EJBTransactionRolledbackException: Exception [TOPLINK-4002] (Oracle
TopLink - 11g Release 1 (11.1.1.0.0) (Build 070428)):
oracle.toplink.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Io exception: The Network Adapter could not establish
the connectionError Code: 17002; nested exception is: Exception [TOPLINK-4002]
(Oracle TopLink - 11g Release 1 (11.1.1.0.0) (Build 070428)):
I made a sample jdbc connection from the session bean, to the database it should connect to: no problem.
Is there a checklist of what I should make sure? There are a lot of wizards, configuration files, etc. and I'm a little bit confused about the cause of the problem and how to fix it. My question has been on metalink for 48 hours, but without luck yet.
Here is a more complete part of the stack trace:
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at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:72)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:105)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:168)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:224)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:495)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:429)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:650)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:200)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:34)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:413)
at oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:388)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:278)
at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:203)
at oracle.oc4j.sql.DataSourceConnectionPoolDataSource.getPooledConnection(DataSourceConnectionPoolDataSource.jav
a:57)
at oracle.oc4j.sql.xa.EmulatedXADataSource.getXAConnection(EmulatedXADataSource.java:94)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createXAConnection(ManagedConnectionFactoryImpl.java:251)
at oracle.oc4j.sql.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:21
2)
at com.evermind.server.connector.ApplicationConnectionManager.createManagedConnection(ApplicationConnectionManager.java:1354)
at oracle.oc4j.sql.OracleConnectionFactoryAdapter.createConnection(OracleConnectionFactoryAdapter.java:110)
at oracle.ucp.common.CollectionConnectionPoolImpl.createOnePooledConnection(Coll
ectionConnectionPoolImpl.java:513)
at oracle.ucp.common.CollectionConnectionPoolImpl.borrowConnectionWithoutCountingRequests(CollectionConnectionPoolImpl.java:
419)
at oracle.ucp.common.CollectionConnectionPoolImpl.borrowConnection(CollectionConnectionPoolImpl.java:295)
at oracle.oc4j.sql.OracleCommonConnectionPool.borrowConnection(OracleCommonConnectionPool.java:79)
at oracle.oc4j.sql.OracleCommonConnectionPool.getManagedConnection(OracleCommonConnectionPool.java:61)
at oracle.j2ee.connector.OC4JConnectionPoolAdapter.getManagedConnection(OC4JConnect
ionPoolAdapter.java:543)
at com.evermind.server.connector.ApplicationConnectionManager.getManagedConnectionContext(ApplicationConnectionManager.java:1568)
at com.evermind.server.connector.ApplicationConnectionManager.getConnectionFromPool
(ApplicationConnectionManager.java:1553)
at com.evermind.server.connector.ApplicationConnectionManager.acquireConnectionContext(ApplicationConnectionManager.ja
va:1499)
at com.evermind.server.connector.ApplicationConnectionManager.allocateConnection(ApplicationConnectionManager.java:1444)
at oracle.j2ee.connector.OracleConnectionManager.unprivileged_allocateConnection(OracleConnectionManager.jav
a:238)
at oracle.j2ee.connector.OracleConnectionManager.allocateConnection(OracleConnectionManager.java:192)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:217)
at oracle.oc4j.sql.ManagedDataSource.getConnection(ManagedDataSource.java:147)
at oracle.toplink.jndi.JNDIConnector.connect(JNDIConnector.java:123)
... 69 more

HI
can you reply the feedback of metalink? because I'm having similar problem.
I debug in junit and embebbed at the jdev and it works well, but when I deploy in a standalone oc4j it gives me the same error of Excepção de E/S: The Network Adapter could not establish the connection
And I'm not using 11g, I'm still in 10g but the problem might be the same.
cumps
DnlCY
null

TopLink - JPA - Jdeveloper 11g

Hi All,
I am having a TopLink - JPA example. I am executing a InsertExample.java which will insert record. But as I run InsertExample.java I keep getting following error.
I am using Jdeveloper 11 g (and NOT Eclipse). How to get rid of following error ?
"C:\Program Files\Java\jdk1.6.0_22\bin\javaw.exe" -client -classpath C:\MyJdevUserHomeEnv\mywork\TopLinkDesign\.adf;C:\MyJdevUserHomeEnv\mywork\TopLinkDesign\TopLink\classes;C:\Oracle\MiddlewarePS3\modules\com.oracle.toplink_1.0.0.0_11-1-1-4-0.jar;C:\Oracle\MiddlewarePS3\modules\org.eclipse.persistence_1.0.0.0_2-1.jar;C:\Oracle\MiddlewarePS3\modules\com.bea.core.antlr.runtime_2.7.7.jar;C:\Oracle\MiddlewarePS3\oracle_common\modules\oracle.toplink_11.1.1\javax.persistence_2.0_preview.jar;C:\Oracle\MiddlewarePS3\oracle_common\modules\oracle.xdk_11.1.0\xmlparserv2.jar;C:\Oracle\MiddlewarePS3\oracle_common\modules\oracle.xdk_11.1.0\xml.jar;C:\downloads\toplink_111130_en.zip;C:\downloads\coherence-java-3.6.0.0b17229.zip;C:\downloads\coherence-java-3.6.0.0b17229\coherence\lib\coherence.jar;C:\downloads\eclipselink-2.1.1.v20100817-r8050\eclipselink\jlib\eclipselink.jar;C:\downloads\toplink_111130_en\jlib\toplink-grid.jar;C:\Oracle\MiddlewarePS3\jdeveloper\ide\macros\..\..\..\wlserver_10.3\server\lib\ojdbc6.jar;C:\Oracle\MiddlewarePS3\jdeveloper\ide\macros\..\..\..\oracle_common\modules\oracle.nlsrtl_11.1.0\orai18n.jar;C:\Oracle\MiddlewarePS3\oracle_common\modules\oracle.odl_11.1.1\ojdl.jar;C:\Oracle\MiddlewarePS3\oracle_common\modules\oracle.dms_11.1.1\dms.jar -Djavax.net.ssl.trustStore=C:\Oracle\MiddlewarePS3\wlserver_10.3\server\lib\DemoTrust.jks gridcache.example.InsertExample
[EL Info]: 2010-11-20 19:58:59.418--ServerSession(30936685)--EclipseLink, version: Eclipse Persistence Services - 2.1.2.v20101006-r8316
[EL Warning]: 2010-11-20 19:58:59.425--java.lang.ClassNotFoundException: weblogic.version
[EL Info]: 2010-11-20 19:58:59.855--ServerSession(30936685)--file:/C:/MyJdevUserHomeEnv/mywork/TopLinkDesign/TopLink/classes/_employee-pu login successful
[EL Info]: 2010-11-20 19:58:59.855--JMX MBeanServer instance found: [com.sun.jmx.mbeanserver.JmxMBeanServer@146c1d4], # of beans: [20], domain: [DefaultDomain] at index: [0].
[EL Warning]: 2010-11-20 19:58:59.861--Failed to initialize MBean threadPoolRuntime: javax.management.InstanceNotFoundException: com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean
[EL Warning]: 2010-11-20 19:58:59.862--Failed to initialize MBean threadPoolRuntime: javax.management.InstanceNotFoundException: com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean
Exception in thread "main" java.lang.IllegalArgumentException: Object: Employee(0: Smith, Bob) is not a known entity type.
*     at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4198)*
*     at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:403)*
*     at gridcache.example.InsertExample.main(InsertExample.java:29)*
Process exited with exit code 1.

It seems this is not a Java EE deployment so is the Employee class listed in the persistence.xml file? Or have you set <exclude-unlisted-classes>false</exclude-unlisted-classes> ? Alternatively you could package the classes into a Jar referenced through the <jar-file></jar-file> element.
--Gordon

Toplink JPA forces database table and column names to UPPERCASE! Why?

I have recently experienced using Toplink JPA while using glassfish ... migrating an existing application to EJB 3.0 persistence. Toplink JPA, as implemented in glassfish, forces tablenames and column names from my code to be uppercase in select statements, etc. as then submitted to the database. Why? I cannot find anything in the EJB 3.0 specs on persistence that even suggests this.
This created a serious problem for me, in my application. For my code to work I had to change the names of the database tables to all uppercase, even though that meant other of my applications, already written using the original mixed case names of the databases, will no longer work unless I revise the code in those applications! (I am using mySQL as my database.)
In both Unix/Linux and Java, which are both case sensitive, If I wanted names of files or other items to be uppercase, I would have written them that way. I do not expect some middleware piece of software to muck around with the case of text I have put into my code.
I am hopeful this 'feature' of the reference implementation of the EJB Persistence API will be corrected in a subsequent version. [Maybe you can tell I am not happy!]
Thanks for listening to my rant.

Robert,
I found that the name I specify in all of my @Table, @Column, ... annotations is used with the case as it is provided.
If TopLink determines the schema information through defaults then the names it comes up with are definitely upper cased by default.
Are you specifying the schema information that you want in annotations or XML?
Doug

Toplink JPA 2.0 migration in JDeveloper 11.1.1.2.0

I would like to used Toplink JPA 2.0 in JDeveloper 11g, how to update toplink_111120_en.zip in JDeveloper IDE.? Even I added eclipselink and JPA 2.0 spec lib into classpath, I am still getting compile time error on orphanRemoval attribute in OneToMany annotation.

Hi,
I am not clear on the requirement.Let me know if my understanding is correct.
You have a created a JPA project in Toplink Workbench and want to reuse the work in JDeveloper.
If the above is correct,open the JDeveloper(PS3 release) and use the File-import-TopLinkworkbenchProject and select the application workspce created in TWB.
Regards,
Vinay

Toplink JPA Deployment problem in OC4J

Hi all ,
we are having problem in deployment for an toplink JPA program in OC4J 10.1.3 .. We are using toplink essesntial and our deployed EAR structure is
aaplication.xml
rmwtoplink.war
the content of application.xml is as
<display-name>rmwtoplink</display-name>
<module>
<web>
<web-uri>rmwtoplink.war</web-uri>
<context-root>rmwapplist</context-root>
</web>
</module>
the content of war file as below :
web-inf\web.xml
web-inf\classes\META-INF\persistence.xml
web-inf\classes\<classes>
web-inf\gnf\<jsp pages>
when ever a pages are called those do not use entity manager / jpa call are loading perfectly , but the pages which have used jpa are nt diplayed , we check the error messages , it just halts after following codes :
EntityManagerFactory emf =
Persistence.createEntityManagerFactory(jpaSource);
It seems there is no exception that is even thrown in page or opmn log .
The same program is running fine in Jdveloper 10.1.3 /
Is there any way where we can get the actual error message ?
we are using toplink.jdbc.url for connecting the database .

Here is little more insight for the problem , further check reveals that :
start connecting rmwtest
exception occured for connection test , Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Listener refused the connection with the following error:
ORA-12514, TNS:listener does not currently know of service requested in connect descriptor
The Connection descriptor used by the client was:
//localhost:1521/ORCL
we do not have any idea how is localhost:1521/ORCL picked up , in our persistence.xml we have
where as rmwtest defined in persistence.xml as
<persistence-unit name="rmwtest" transaction-type="RESOURCE_LOCAL">
<provider>oracle.toplink.essentials.PersistenceProvider</provider>
<class>rmw.gnf.entity.ServSesnUser</class>
<class>rmw.gnf.entity.RmwData</class>
<class>rmw.gnf.entity.GnfData</class>
<properties>
<property name="toplink.logging.level" value="FINEST"/>
<property name="toplink.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="toplink.jdbc.url" value="jdbc:oracle:thin:@middb.1dc.com:1621:ukdbins"/>
<property name="toplink.jdbc.user" value="****"/>
<property name="toplink.jdbc.password" value="********"/>
</properties>
</persistence-unit>

Useing toplink jpa in jdev11 and mysql4,but meet the DatabaseException

Hello everyone,I'm useing toplink jpa in jdev11 and mysql4.I create a class from database success.Then I use "Java Service Facade" to create a class called JavaServiceFacade sucess.Then I add some code:
System.out.println(javaServiceFacade.queryCnationalityFindAll().size())
in main
then I run the program,but I got this error:
xception in thread "main" Local Exception Stack:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0 (Build b41-beta2 (03/30/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: [Microsoft][ODBC 驱动程序管理器] 未发现数据源名称并且未指定默认驱动程序
Error Code: 0
     at oracle.toplink.essentials.exceptions.DatabaseException.sqlException(DatabaseException.java:290)
     at oracle.toplink.essentials.sessions.DefaultConnector.connect(DefaultConnector.java:87)
     at oracle.toplink.essentials.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:170)
     at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:218)
     at oracle.toplink.essentials.internal.databaseaccess.DatabaseAccessor.connect(DatabaseAccessor.java:227)
     at oracle.toplink.essentials.internal.databaseaccess.DatasourceAccessor.connect(DatasourceAccessor.java:294)
     at oracle.toplink.essentials.threetier.ConnectionPool.buildConnection(ConnectionPool.java:102)
     at oracle.toplink.essentials.threetier.ConnectionPool.startUp(ConnectionPool.java:324)
     at oracle.toplink.essentials.threetier.ServerSession.connect(ServerSession.java:443)
     at oracle.toplink.essentials.internal.sessions.DatabaseSessionImpl.login(DatabaseSessionImpl.java:571)
     at oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:208)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:212)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:78)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:111)
     at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:105)
     at oracle.toplink.essentials.internal.ejb.cmp3.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:76)
     at project6.JavaServiceFacade.getEntityManager(JavaServiceFacade.java:23)
     at project6.JavaServiceFacade.queryCnationalityFindAll(JavaServiceFacade.java:72)
     at project6.JavaServiceFacade.main(JavaServiceFacade.java:18)
Caused by: java.sql.SQLException: [Microsoft][ODBC 驱动程序管理器] 未发现数据源名称并且未指定默认驱动程序
     at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6958)
     at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7115)
     at sun.jdbc.odbc.JdbcOdbc.SQLDriverConnect(JdbcOdbc.java:3074)
     at sun.jdbc.odbc.JdbcOdbcConnection.initialize(JdbcOdbcConnection.java:323)
     at sun.jdbc.odbc.JdbcOdbcDriver.connect(JdbcOdbcDriver.java:174)
     at java.sql.DriverManager.getConnection(DriverManager.java:525)
     at java.sql.DriverManager.getConnection(DriverManager.java:140)
     at oracle.toplink.essentials.sessions.DefaultConnector.connect(DefaultConnector.java:85)
     ... 17 more
there's some chinese you may not know,that means there's something wrong with
Microsoft odbc.I'm puzzle of that:I'm useing java+mysql,why there's wrong with odbc???
thank you very much
(maybe it's jdev11 technical preview edition so it can't work?)

HI
can you reply the feedback of metalink? because I'm having similar problem.
I debug in junit and embebbed at the jdev and it works well, but when I deploy in a standalone oc4j it gives me the same error of Excepção de E/S: The Network Adapter could not establish the connection
And I'm not using 11g, I'm still in 10g but the problem might be the same.
cumps
DnlCY
null

Toplink JPA and handle to a sequence

Hi All,
I am trying to figure out a way to get a handle to an Oracle sequence and use it from the java application i.e. run operations like currval/nextval.
The reason I need this flexibility is to refer 2 sequences from the java app and apply it on a single table. Currently the table i am trying to insert already has a sequence which is a primary key generator. We do refer it in our JPA annotations and this works fine.
But there was a need where another column (not part of Primary key) also needs its values from a different sequence.
When we try to refer it from Toplink JPA it does not allow and errors stating cannot have 2 sequences mapping for a single table entity.
Let me know your thoughts.
Thanks

You could use a native SQL query to get the nextval or curval from the Sequence.
TopLink/EclipseLink should support an API for this, or allow multiple sequences per object, please vote for these bugs,
https://bugs.eclipse.org/bugs/show_bug.cgi?id=267701
https://bugs.eclipse.org/bugs/show_bug.cgi?id=320456
James : http://www.eclipselink.org

Oracle JDeveloper 10.1.3 Toplink Objects from Table Bug.

i try this with updates and without them.
toplink bug or toplink Wizzard Bug: I have create a conection to data base(MySQL) I use mysql-connector and everything works... i see the tables then i try to create "TOplink objects from Table " , choose connection ,for Schema i choose "none". When i choose AutoQuerry it shows the columns i add columns , I choose OK. When it ask for a name for the package i give him mypackage, when it ask for class name i also choose my package.Users(the table is Users) after which i have the following exception in MessageBox:
"oracle.jdeveloper.cm.ds.db.InvalidNameException : Object must have a name."
on details i get :
oracle.toplink.addin.mappingcreation.MWProjectCreationException: oracle.jdeveloper.cm.ds.db.InvalidNameException: Object must have a name.
     at oracle.toplink.addin.mappingcreation.MappingCreatorImpl.generateMappedDescriptorsForTables(MappingCreatorImpl.java:277)
     at oracle.toplink.addin.mappingcreation.MappingCreatorImpl.generateMappedDescriptorsForTables(MappingCreatorImpl.java:196)
     at oracle.toplink.addin.wizard.jobgeneration.JobWizard$1.construct(JobWizard.java:416)
     at oracle.ide.util.SwingWorker$1.run(SwingWorker.java:119)
     at java.lang.Thread.run(Thread.java:595)
Caused by: oracle.jdeveloper.cm.ds.db.InvalidNameException: Object must have a name.
     at oracle.jdeveloper.cm.ds.db.validators.AbstractValidator.validateName(AbstractValidator.java:54)
     at oracle.jdeveloper.offlinedb.validators.OfflineSchemaValidator.validateName(OfflineSchemaValidator.java:29)
     at oracle.jdeveloper.cm.ds.db.validators.AbstractValidator.validateObject(AbstractValidator.java:187)
     at oracle.jdeveloper.cm.ds.db.validators.AbstractValidator.validateObject(AbstractValidator.java:122)
     at oracle.jdeveloper.cm.ds.db.AbstractDBObjectProvider.validateObject(AbstractDBObjectProvider.java:822)
     at oracle.jdeveloper.cm.ds.db.AbstractDBObjectProvider.validateSchema(AbstractDBObjectProvider.java:858)
     at oracle.jdeveloper.offlinedb.OfflineDBObjectProvider.createSchema(OfflineDBObjectProvider.java:1954)
     at oracle.toplink.addin.mappingcreation.MappingCreatorImpl.updateOfflineDBandMWDatabaseWithTablesToMap(MappingCreatorImpl.java:450)
     at oracle.toplink.addin.mappingcreation.MappingCreatorImpl.generateMappedDescriptorsForTables(MappingCreatorImpl.java:242)
     ... 4 more
in the messege log i get :
Starting Java object generation...
Creating offline database objects...
A problem was encountered creating offline database objects.
Aborted Java object generation.
Message was edited by:
JOKe
Message was edited by:
JOKe

I have tried this out in the EA release of JDev, and have reproduced the problem you reported. However, trying out the latest development build, the problem does not occur, so this bug has been fixed. You'll pick up this fix when we next release the software on OTN.

Toplink JPA with Coherence deployment to Weblogic 10.3

Hi,
I have created an EJB application using Toplink JPA and Coherence. I would like to deploy this application to Weblogic 10.3.
During the startup of Weblogic I have specified the Java option as
-Dtangosol.coherence.cacheconfig=D:/JDEV_11g/jdeveloper/jdev/mywork/CoherenceApp/CoherenceProject/src/META-INF/coherence-cache-config.xml.
Persistence.xml and coherence-cache-config.xml are palced inside the jar file.
When I execute the ejb client program, during the method call, I can see that coherence is started but it uses the cache-config from the coherence.jar file instaed of the value I have set during startup. How can I make weblogic use my cache-config.xml? I have included the log file entries from server:
[EL Finest]: 2009.04.17 05:33:48.625--UnitOfWork(1777337)--Thread(Thread[[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads])--Execute query ReadObjectQuery(coherenceproject.MetadataType)
2009-04-17 05:33:54.547/258.954 Oracle Coherence 3.4.2/411 <Info> (thread=[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)', member=n/a): Loaded operational configuration from resource "zip:D:/JDEV_11g/jdeveloper/jdev/mywork/CoherenceApp/lib/coherence.jar!/tangosol-coherence.xml"
2009-04-17 05:33:54.562/258.969 Oracle Coherence 3.4.2/411 <Info> (thread=[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)', member=n/a): Loaded operational overrides from resource "zip:D:/JDEV_11g/jdeveloper/jdev/mywork/CoherenceApp/lib/coherence.jar!/tangosol-coherence-override-dev.xml"
2009-04-17 05:33:54.562/258.969 Oracle Coherence 3.4.2/411 <D5> (thread=[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)', member=n/a): Optional configuration override "/tangosol-coherence-override.xml" is not specified
2009-04-17 05:33:54.578/258.985 Oracle Coherence 3.4.2/411 <D5> (thread=[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)', member=n/a): Optional configuration override "/custom-mbeans.xml" is not specified
Oracle Coherence Version 3.4.2/411
Grid Edition: Development mode
Copyright (c) 2000-2009 Oracle. All rights reserved.
*2009-04-17 05:33:55.750/260.157 Oracle Coherence GE 3.4.2/411 <Info> (thread=[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)', member=n/a): Loaded cache configuration from resource "zip:D:/JDEV_11g/jdeveloper/jdev/mywork/CoherenceApp/lib/coherence.jar!/coherence-cache-config.xml"*
2009-04-17 05:34:17.390/281.797 Oracle Coherence GE 3.4.2/411 <D5> (thread=Cluster, member=n/a): Service Cluster joined the cluster with senior service member n/a
2009-04-17 05:34:21.890/286.297 Oracle Coherence GE 3.4.2/411 <Info> (thread=Cluster, member=n/a): Created a new cluster "cluster:0x2FFB" with Member(Id=1, Timestamp=2009-04-17 05:34:09.203, Address=141.144.90.113:8088, MachineId=18289, Location=site:sg.oracle.com,machine:rajerama-sg,process:3816, Role=WeblogicServer, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=1) UID=0x8D905A7100000120B0D9DD3347711F98
2009-04-17 05:34:27.000/291.407 Oracle Coherence GE 3.4.2/411 <D5> (thread=DistributedCache, member=1): Service DistributedCache joined the cluster with senior service member 1
[EL Finer]: 2009.04.17 05:34:28.343--ServerSession(32927169)--Thread(Thread[[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads])--Coherence(MetadataType)::Get: 2
[EL Fine]: 2009.04.17 05:34:28.703--ServerSession(32927169)--Thread(Thread[[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads])--Coherence(MetadataType)::Get: 2 result: null
[EL Finer]: 2009.04.17 05:34:28.703--ServerSession(32927169)--Thread(Thread[[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads])--Coherence(MetadataType)::Get: 2
*[EL Fine]: 2009.04.17 05:34:28.703--ServerSession(32927169)--Thread(Thread[[ACTIVE] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)',5,Pooled Threads])--Coherence(MetadataType)::Get: 2 result: null*
null
Eventhough the method is called correctly, it does not return the value. Is there any other setup that has to be done?
Regards
Raji

Hi Raji,
You mentioned:
>
-Dtangosol.coherence.cacheconfig=D:/JDEV_11g/jdeveloper/jdev/mywork/CoherenceApp/CoherenceProject/src/META-INF/coherence-cache-config.xml
>
and
>
Persistence.xml and coherence-cache-config.xml are palced inside the jar file.
>
It appears that these are conflicting; as the system property indicates that the config should be read from a file, whereas the file is actually deployed in a jar.
That being said, I would suggest double checking that the system property is actually being set in the JVM. In my testing, if I specify a cache config that does not exist, an exception will be thrown:
java -Dtangosol.coherence.cacheconfig=foo.xml com.tangosol.net.CacheFactory
Oracle Coherence Version 3.4.2/411p3
Grid Edition: Development mode
Copyright (c) 2000-2009 Oracle. All rights reserved.
Map (?): cache test
2009-04-22 15:33:15.310/6.917 Oracle Coherence GE 3.4.2/411p3 <Error> (thread=main, member=1):
(Wrapped: Failed to load the factory) java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
        at com.tangosol.util.ClassHelper.newInstance(ClassHelper.java:662)
        at com.tangosol.net.CacheFactory.getConfigurableCacheFactory(CacheFactory.java:602)
        at com.tangosol.coherence.component.application.console.Coherence.doCache(Coherence.CDB:9)
        at com.tangosol.coherence.component.application.console.Coherence.processCommand(Coherence.CDB:209)
        at com.tangosol.coherence.component.application.console.Coherence.run(Coherence.CDB:39)
        at com.tangosol.coherence.component.application.console.Coherence.main(Coherence.CDB:3)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at com.tangosol.net.CacheFactory.main(CacheFactory.java:1308)
Caused by: (Wrapped: Failed to load configuration resource: foo.xml) java.io.IOException: Configuration is missing: "foo.xml", loader=null
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfigAsResource(DefaultConfigurableCacheFactory.java:386)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultConfigurableCacheFactory.java:337)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultConfigurableCacheFactory.java:309)
        at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfigurableCacheFactory.java:137)
        ... 15 moreThanks,
Patrick

Automatic connection "ping" / health check in TopLink JPA ?

Some days ago we experienced problems with our underlying Oracle database, so the DB server hat to be shut down and rebootet. The application server machine (running Apache Tomcat 5.5 on a Linux OS) which provides several web-applications that are using Toplink JPA were not restarted after the DB was up again.
We encountered several subsequent "connection reset" errors within the webapps which where produced by TopLink JPA. I'd assume that this comes from the underlying restart of the DB, which invalidated/closed TopLink's JPA connection.
is there any option e.g. to be set in persistence.xml to enable a Connection-"ping" or "health check" before TopLink JPA is using the connection?
e.g.
toplink.jpa.connection.ping = "select 1 from dual";
regards,
Hans

Hans,
There is nothing built in but you can use an ExceptionHandler to handle failures and re-connect connection. This is typically only an issue when using TopLink's internal connection pooling. It is more common in a container to use its data sources and rely on them to handle connection management.
Doug

JPA problem

Hi,
i'm spanish and my english is not good, so i'll try write as well as i can...
i'm developing a web aplication using Struts, java 6 and the topLink essential implementation to JPA.
Basically there are two entities, Flats and his son entity, Property ("Inmueble" in Spanish). The problem appears when you insert many Properties (with his corresponding Flat), delete one of them, and inmediatly after you re-insert another flat. That's when say the exception: "java.lang.IllegalStateException: During synchronization a new object was found through a relationship that was not marked cascade PERSIST:com.dalya.bbdd.entity.Inmueble [idInmueble=5]."
For insert, i do two save's, one for the Flat and the other for de Property in wich i've introduced the flat. we can introduced "n" Flat's and no problem never.
To clear, I just erased the Property because this relationship is marked with a cascade deleted, so, the floor connected also clears. When we clear, nor is there any problem apparently becuse on the BBDD persist the flat's i've introduced least that has been erased.
It is when we try to re-insert another floor when the exception jumps.
I tried to shut down the Tomcat server just after deleting the flat, and when you lift it and try to insert again, there're no problems.
When jumps the exception, if again attempt to save the floor, then it is recorded in the BBDD smoothly.
What did I do wrong??
If you want to see the source code, said to me, and i'll send it.

In ur application u r inserting child records(Properties) and parent record (Flats) at a time.
Actually that problem is raised when u will try to insert both child and parent records at a time.
For this purpose u have to maintain Cascade persist in the entity which u r inserting.

Why it is so slow using toplink JPA in applet or webstart

I use jpa in the applet,but it is too slow to initialize the toplink jpa.
It takes about 80 seconds to execute this method:
EntityManagerFactory factory=Persistence.createEntityManagerFactory("unit");
The applet/webstart has the security authorization.
I even modify the java.policy file to give the applet AllPermission.
How could I fix this?
thx for u help.
with regards

To test if it is jpa's problem.
I create a new desktop project and didn't use toplink JPA.
It performace good. But if I use JPA in this project.It became so slow.
as I said before. I have give the programme authorization to run.
Can anyone help.
Even when I change to openJPA.It just performace a little faster.
cause the project is nearly finished,I can't replace JPA in the project.It cost too much time that I can't afford.
I don't know what is the problem.
Please help.
thank you.

Jdeveloper 11 and/or toplink-jpa problem

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