JDO VS Oracle's business component.

Hi all,
I did work alwys with Oracle's business components for connecting to a db so I don't know nothing about other technologies to connect java's applications with db.
Now I would change and I'm looking for something about more flexible.
I read some thing about JDO and I'm here for tell you what I understand and if it is correct.
The first thing is that JDO is a sub level between the applications and the db (if it exit).
The second thing is that JDO must connect to a driver to connect to the same db.
The third thing, but I think it is the most important, the db it could be too many types like MySQL, Oracle, LDAP, XML, and if the structure of these db is equal I can change the db with only change the driver to use...
In practice, if someone uses the Oracle's business components, it is the same only mor flexible...
It is all right?
If it is correct, I have another question, I must create a java's class for one table or does it exit some thing that I can call like:
select [columns] from [tables] and I make it persistence?
Thanks for your help.
P.S.: Sorry if there are some language's errors.

I would understand a simply thing: is JDO a Sun's technology?
I read here:
http://java.sun.com/jdo/index.jsp
that the jdo 2.0 is an Apache's project and I have a simply doubt: is this the right place where I can ask something about JDO?
Or is better write on apache's community?

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     at oracle.jbo.dt.jdevx.ui.JdxMenuInvoker.run (JdxMenuManager.java:2111) [C:/Oracle/Middleware/jdeveloper/jdev/extensions/oracle.BC4J.jar (from system property C:\Oracle\Middleware\jdeveloper\jdev\extensions\oracle.BC4J.jar), by main:11.0]
     at java.awt.event.InvocationEvent.dispatch (InvocationEvent.java:209) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventQueue.dispatchEvent (EventQueue.java:597) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.pumpOneEventForFilters (EventDispatchThread.java:273) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.pumpEventsForFilter (EventDispatchThread.java:183) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:173) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:168) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:160) [jre bootstrap, by jre.bootstrap:1.6.0_05]
     at java.awt.EventDispatchThread.run (EventDispatchThread.java:121) [jre bootstrap, by jre.bootstrap:1.6.0_05]
I searched for this class, and it is supposed to be in uic.jar. However, when I opened that jar file it was not there. Did I set something up wrong, or is this a bug in jdeveloper?

When I am trying to open a VO inside JDeveloper for editing. The issue appears only to be with the VO's, even the ones that were automatically created at the start of the tutorial. Other types of objects can be opened for editing without incident.
Here is my versioning info:
ADF Business Components     11.1.1.52.5
CVS Version     Internal to Oracle JDeveloper 11g (client-only)
Java(TM) Platform     1.6.0_05
Oracle IDE     11.1.1.0.31.52.05
Versioning Support     11.1.1.0.31.52.05

How to setup new OC4J instance to host jdev business component (EJB)

From Jdeveloper 9.0.3 I want to deploy a business component to an new oc4j instance running under 9ias version 9.0.3.
In jdeveloper I have built and tested an application server connection (type=Oracle Application Sever Remote DCM) to my new oc4j instance on 9ias. My understanding is that the jdeveloper deployment profile wizard will help me construct a profile to build what is known as an "EJB session bean".
Using EmWebSite, I have created and started the new oc4j instance, and i constructed a datasource to be used for the database connection.
Is there anything else that I will need to do to the new 9ias oc4j instance prior to building the deployment profile in jdeveloper, and then running the deployment? For instance, does this new oc4j instance somehow have the necessary hooks in it to support this bc4j component? Do I need to install any missing jar files? Do I need to define rmi ports ? Do I need to configure BC4J support?
BTW ... I have tried to pursue this topic from the Jdeveloper side but the support personnel are not familar with 9ias 903, nor are they familar with 9ias Remote DCM deployment.

Yes, you should be able to deploy an BC4J application without making any other changes to an IAS instance. For standalone OC4J please look at http://otn.oracle.com/products/jdev/htdocs/config_oc4j_for_bc4j.html
regards
Debu

Error JBO-33003 ADF Business component as an EJB remote

Hi,
I need to deploy an ADF application (model in business component and view in ADF Faces) in a multi-tier architecture. I deployed the MODEL project (bc4j) in an OAS’s OC4J instance. Now, when I try to test de application I get the following error:
oracle.jbo.ConfigException: JBO-33003: Connection name <my_conn_to_oas> not defined.
Also, I tried to connect to de EJB session from my VIEW project, so I changed the file DataBindings.cpx. I changed the line Configuration="AMProyectosLocal" to Configuration="AMProyectosAS_DS".
When I run the view project I get the same error:
500 Internal Server Error
oracle.jbo.ConfigException: JBO-33003: Connection name AppServerPenny not defined
     at oracle.jbo.client.Configuration.initializeFromConnectionName(Configuration.java:1103)
     at oracle.jbo.client.Configuration.getConfiguration(Configuration.java:538)
     at oracle.jbo.client.Configuration.getConfiguration(Configuration.java:461)
     at oracle.jbo.client.Configuration.getConfiguration(Configuration.java:436)
     at oracle.jbo.common.ampool.PoolMgr.createPool(PoolMgr.java:287)
     at oracle.jbo.common.ampool.PoolMgr.findPool(PoolMgr.java:539)
     at oracle.jbo.common.ampool.ContextPoolManager.findPool(ContextPoolManager.java:165)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.findOrCreateSessionCookie(DataControlFactoryImpl.java:136)
     at oracle.adf.model.bc4j.DataControlFactoryImpl.createSession(DataControlFactoryImpl.java:222)
     at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:76)
     at oracle.adf.model.BindingContext.get(BindingContext.java:457)
What is the problem?
Where can I find the process to deploy in a multi-tier platform?
Please, help me.

Thank for your help.
I reviewed the datasource configuration and it is Ok.
The connection’s name isn't a datasource name. It is the connection’s name to the APPLICATION SERVER. I reviewed the bc4j.xcfg file and it has the following definition:
<ConnectionDefinition name="AppServerPenny">
<ENTRY name="remote-oracle-home" value="/home/oracle/OAS/10.2.0/middle"/>
<ENTRY name="ConnectionType" value="Oracle_AS_10g_UNIX"/>
<ENTRY name="HOSTNAME" value="penny.asesoftware.com"/>
<ENTRY name="DeployPassword" value="true"/>
<ENTRY name="oc4j-instance-name" value="OC4J_ARES"/>
<ENTRY name="user" value="ias_admin"/>
<ENTRY name="ConnectionName" value="AppServerPenny"/>
<ENTRY name="ormi-username" value="admin"/>
<ENTRY name="ormi-client-url" value="ormi://penny.asesoftware.com:23791"/>
<ENTRY name="IIOP_PORT" value="1810"/>
<ENTRY name="password">
<![CDATA[{904}05B4D7F42A8C91433599EDC9FDE9B9B249A698997ABBAAAD13]]>
</ENTRY>
<ENTRY name="ormi-password" value="manager123"/>
<ENTRY name="DeployPassword" value="true"/>
</ConnectionDefinition>
Why does the test utility not found the AppServerPenny connection?

How to make ADF Business Component Connection which is using XATransaction?

Hi all,
I'm using ORACLE 10.1.3 ADF business component, how to set this component using XA transaction? Is that possible to use xa transaction manually from application module?
thanks

I believe you mean to ask whether ADF BC uses XA Transaction.
You can use a JDBC datasource based on XA Transaction for ADF BC. You might find this link useful for an overview: [XA Data Source Interface and Oracle Implementation|http://download-uk.oracle.com/docs/cd/B10501_01/java.920/a96654/xadistra.htm#1058741]
What do you mean by "+Is that possible to use xa transaction manually from application module?+" - Do you mean exposing the transaction of ADF BC outside its AM..? If so, I'm afraid that its not supported.
Thanks,
~Krithika

"Error loading Business Component" in all projects (10.1.3 EA)

I have just started getting the following error message prompt when I attempt to expand any of my projects in the Appplication Navigator:
Error loading Business Component:
<path to>\Model.jpr
Exception: java.lang.NullPointerException
Here is a sample stack trace:
java.lang.NullPointerException
     at oracle.jbo.dt.jdevx.ui.JdxVcsListener.<init>(JdxLoader.java:1723)
     at oracle.jbo.dt.jdevx.ui.JdxJboAddin.initVCSListener(JdxJboAddin.java:684)
     at oracle.jbo.dt.jdevx.ui.JdxJboAddin.initJboProject(JdxJboAddin.java:203)
     at oracle.jbo.dt.jdevx.ui.JdxLoader.doOpenProject(JdxLoader.java:1500)
     at oracle.jbo.dt.jdevx.ui.JdxLoader.openProject(JdxLoader.java:1454)
     at oracle.jbo.dt.jdevx.ui.JdxLoader.update(JdxLoader.java:147)
     at oracle.ide.model.IdeSubject.notifyObservers(IdeSubject.java:94)
     at oracle.ide.model.Node.notifyObservers(Node.java:458)
     at oracle.ide.model.UpdateMessage.fireObjectOpened(UpdateMessage.java:681)
     at oracle.ide.model.Node$1$4.run(Node.java:1527)
     at oracle.ide.model.Node$1.invokeLaterIfNeeded(Node.java:1587)
     at oracle.ide.model.Node$1.nodeOpened(Node.java:1520)
     at oracle.ide.model.Node.fireNodeOpened(Node.java:1139)
     at oracle.ide.model.Node.open(Node.java:573)
     at oracle.ide.model.Node.ensureOpen(Node.java:976)
     at oracle.ide.model.DataContainer$2.run(DataContainer.java:147)
     at oracle.ide.model.Node.runWhileSynchronized(Node.java:809)
     at oracle.ide.model.DataContainer.getSharedPropertiesOnly(DataContainer.java:152)
     at oracle.ide.model.Project.getPropertiesImpl(Project.java:1047)
     at oracle.ide.model.Project.getProperties(Project.java:320)
     at oracle.jdeveloper.model.PathsConfiguration.getInstance(PathsConfiguration.java:89)
     at oracle.jdeveloper.model.PathsConfiguration.getInstance(PathsConfiguration.java:84)
     at oracle.jdeveloper.library.ProjectLibrary.getSourcePath(ProjectLibrary.java:67)
     at oracle.jdeveloper.model.PathsConfiguration.getSourcePath(PathsConfiguration.java:146)
     at oracle.jdeveloper.model.JavaProject$5.getValue(JavaProject.java:523)
     at oracle.jdeveloper.model.JavaProject$CachingProjectChangeListener.projectOpened(JavaProject.java:478)
     at oracle.ide.model.Project$StorageListener.fireProjectOpened(Project.java:1118)
     at oracle.ide.model.Project$StorageListener.mav$fireProjectOpened(Project.java)
     at oracle.ide.model.Project$NL.nodeOpened(Project.java:1077)
     at oracle.ide.model.Node.fireNodeOpened(Node.java:1139)
     at oracle.ide.model.Node.open(Node.java:573)
     at oracle.adf.dt.providers.DCXDataControlProvider.addControlsToArrayList(DCXDataControlProvider.java:51)
     at oracle.adf.dt.DataControlManager.getAllDataControls(DataControlManager.java:128)
     at oracle.adf.dt.controls.treemodel.DataControlsTreeModel.<init>(DataControlsTreeModel.java:50)
     at oracle.adf.dt.controls.treemodel.DataControlsTreeModel.<init>(DataControlsTreeModel.java:35)
     at oracle.adf.dt.controls.treemodel.DataControlsTreeModel.<init>(DataControlsTreeModel.java:30)
     at oracle.adf.dt.controls.treemodel.DataControlsTreeModel.<init>(DataControlsTreeModel.java:25)
     at oracle.adf.dt.controls.DataControlsTree.createDataControlsTreeModel(DataControlsTree.java:81)
     at oracle.adf.dt.controls.ModelCreator.run(DataControlsTree.java:113)
     at oracle.adf.dt.controls.DataControlsTree.internalPopulateFromActiveWorkSpace(DataControlsTree.java:76)
     at oracle.adf.dt.dbpanel.DataBindingPanelTree.update(DataBindingPanelTree.java:102)
     at oracle.ide.model.IdeSubject.notifyObservers(IdeSubject.java:94)
     at oracle.ide.model.Node.notifyObservers(Node.java:458)
     at oracle.ide.IdeViewHandler.fireActiveProjectChanged(IdeViewHandler.java:147)
     at oracle.ide.IdeViewHandler.activateProjectInWorkspace(IdeViewHandler.java:135)
     at oracle.ide.IdeViewHandler.viewSelectionChanged(IdeViewHandler.java:166)
     at oracle.ide.view.View.fireViewSelectionChanged(View.java:531)
     at oracle.ideri.navigator.DefaultNavigatorWindow.fireViewSelectionChanged(DefaultNavigatorWindow.java:613)
     at oracle.ide.view.View.updateSelectionImpl(View.java:484)
     at oracle.ide.view.View.updateSelection(View.java:324)
     at oracle.ideri.navigator.DefaultNavigatorWindow$3.viewSelectionChanged(DefaultNavigatorWindow.java:1011)
     at oracle.ide.view.View.fireViewSelectionChanged(View.java:531)
     at oracle.ide.view.View$4.actionPerformed(View.java:356)
     at javax.swing.Timer.fireActionPerformed(Timer.java:271)
     at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
I am unable to edit any of my business components. I get NullPointerExceptions when I try.
Any clue what's going on here and how to fix it? If I need to re-install, which directories do I need to copy over from the original installation to the new one in order to pick up where I left off (minus the errors, of course! )?
Thanks for any help!
Andy

Pardon the -bump-. I figured I'd give it one more try for feedback before I re-install and transfer all my settings, connections etc.
Thanks,
Andy

Confused about the Business Component Developer Certification

Excuse me, I´m confused...
How many certifications are about the Business Component Certification? Three??
I thought there was just one, the Business Component Developer, which is the 1Z0-860 code...
but I also have seen these:
Java EE 6 Enterprise JavaBeans Developer Certified Expert Exam - 1Z0-895
Java EE 6 Java Persistence API Developer Certified Expert Exam - 1Z0-898
and now I don´t know which one to study for...
Are these better? Or just different? Or are the last ones just the new ones and the 1Z0-860 is obsolete?
Thanks in advance!

938334 wrote:
Excuse me, I´m confused...
How many certifications are about the Business Component Certification? Three??
I thought there was just one, the Business Component Developer, which is the 1Z0-860 code...
but I also have seen these:
Java EE 6 Enterprise JavaBeans Developer Certified Expert Exam - 1Z0-895
Java EE 6 Java Persistence API Developer Certified Expert Exam - 1Z0-898
and now I don´t know which one to study for...
Are these better? Or just different? Or are the last ones just the new ones and the 1Z0-860 is obsolete?
Thanks in advance!The basic answer to look at the question topics for each exam and and see what fits you. The question topcis should yield insight.
Additionally the following exam is an OCP
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_org_id=&lang=&p_exam_id=1Z0_860
The other two are OCE, as far as I can tell. Typically more of an area in depth, but OCE's can vary.
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_org_id=&lang=&p_exam_id=1Z0_895
http://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=41&p_org_id=&lang=&p_exam_id=1Z0_898
I also notice the earlier exam is J2EE5; the later exams are J2EE6
Hope this helps a little, but this java stuff is too hard for me and i must stackdump.

JDO VS Oracle's business component.

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