JDeveloper Prerelease 10.1.3 and toplink

Hello,
I know ADF is not supported but could someone tell me please if the new prerelease of JDeveloper supports toplink and if so how well is it supported? I mean by that does it have many quirks because it is a prelease.
If anyone out there using it feedback would be great.
Thanks much,
Alex.

The 10.1.3 J2EE Download contains TopLink, but you won't get the easy binding to the user interface that you get with ADF.
Since it is a developer preview you might encounter problems and glitches, if you do please report them on this or the TopLink forums so we can fix them for production.
If you want a production version of JDeveloper with full TopLink support check out the new 10.1.2 release - a lot of toplink improvments in there.

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This is really strange - the icons to start/stop the servers are defined as options in the tools->external tools menu option. Try going in there and verifying that they are still defined.
I never heard of this type of problem before - but you might want to post this question on the WebCenter forum to see if someone ran into this in the past.

JDeveloper and Toplink

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j.

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Urgently!! Deploy project using Struts and Toplink

Hello. I want to make a deploy of a project in wich I'm using Struts and Toplink technologies.
I'm using JDeveloper 10g for Windows and my production server is a SUN V880 with Soloaris 8 and I make it ok, but when I run it since a PC in the intranet the following errors appears (obviously those don't appear before):
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Comparision bw BC and TopLink business service

Hi Experts,
I am new to JDev. It appears to me that developing applications with BC in the back end is easier.
Is there any disadvantage of using AppModule as Data Control as compared to Toplink. ?
Can we use multiple types of Business Services in the same applications. eg AppMod and TopLink just in case.?

You are correct in your observation that ADF BC is easier to develop with since it offers more out-of-the-box declarative features.
There are also some things that TopLink does better though.
For example you can more easily map an OO designed set of object to an existing database (meet in the middle scenario).
Another thing is that with TopLink you are using java classes that don't need to extend any interface (POJO).
While ADF BC wizards are only available in JDev, TopLink has it's own stand alone tool - which means it is a bit easier to use if you are not using JDeveloper as your tool.
At the end of the day the big difference though is the "way of thinking" - see this blog entry:
http://blogs.oracle.com/shay/2006/03/10
And the great thing is that you can have both used in the same project :-)

ValueHolder Indirection and TopLink Cache

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Thanks for the reply.
We use JDeveloper 10.1.3.2. TopLink map in JDev is used to map all table objects and their relationships. So In TopLink map, object(table) A has a ValueHolder object(table) B through indirection. The primary key of B is: description_id, which is used in the table reference mapping.
We use the default TopLink settings in JDev, so object B has below settings in TopLink map:
Identity Map: FullIdentityMap
Size: 50 (there are only about 20 records in this lookup table)
Existence Checking: Check Cache
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Why ADF Business Components and TopLink

Hi All,
Why are there two types of components in Businses Tier? (ADF Business Components and TopLink). Even through there are other types, I can visualize the use of other components but ADF Business Components & TopLink seems to serve the same requirement.
Can some one provide me information on what is the difference between these two and when to use which one?

ADF Business Components (aka BC4J) are different from Toplink from approach point of view. Basically if you are more comfortable with SQL and want fine grain control over what and how SQL are run against the database, BC4J is the way to go, because, it's you who write the queries(in ViewObjects)
If you are from more of java backgroup and can visualize things in term of Object and relationships among objects, so on and so forth then Toplink would be the right choice.
Pls see the post by Shay in his blog:
http://blogs.oracle.com/shay/2006/03/10
regards - rutwik

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I downloaded jdeveloper 10.1.3.4 and when i try to apply the subversion update from the help menu and it is no longer is available, no updates display and only 11g is available as the update. Can anybody tell me how to install the subversion update by using the update option in jdeveloper?

Can you check that you don't already have subversion support - versioning menu->select version system
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I am having problems with connections not closing, we have a connection pool
setup to our Sybase ASE 12.0 database using the jconnect driver.
The connection pool maxes out at 50 connections but after those 50
connections are gone, requests fail...
Any Ideas?

Hello,
I am having same problem with weblogic6.1sp3 and toplink 903.
I have one connection pool 'OraclePool'.
I have two data sources added and refereing to that pool.
My toplink.xml looks like this.
<login>
<datasource>oracleDataSource</datasource>
<non-jts-datasource>oracleNonJTSDataSource</non-jts-datasource>
</login>
I have max capacity of 60 to that pool.
When i run sql queries simultaneously server works ok, it uses all connections efficiently.
But when i use update method using toplink, connections max out.
And it says 'No connections available in the pool'.
How can we find out if toplink closes connections efficiently
after each transaction. Please let me know
what is wrong with my setup.
Thanks
George

Can be toplink-essentials.jar and toplink-essentials-agent.jar shared ?

I have 2 apps, A and B, toplink-essentials.jar and toplink-essentials-agent.jar are not in their war /lib directory. It is in /common/lib (Tomcat 5.5) or /toplink/jlib (OC4J 10.1.3.2.0).
First I deploy and run A - it works, then I deploy and run B - it fails with exception: No Persistence provider for EntityManager named ...
When I do it in opposite sequence, B works ok, A fails.
When I add toplink-essentials.jar and toplink-essentials-agent.jar into war /lib, both works OK, but only on Tomcat. On OC4J not. Itried to add orion-web.xml
<orion-web-app>
<web-app-class-loader search-local-classes-first="true"/>
</orion-web-app>
but without success. Second application still failed.
Can be toplink jars shared between applications ?
Tested with build 41
Lumir

Note: The agent JAR is only needed when starting a
client outside the container.Yes, I kow it - but I am confused, that OC4J /toplink/jlib contain agent, and tutorial at
http://www.oracle.com/technology/products/ias/toplink/jpa/examples/jsf-jpa-example.html#CHDDIFII
also say: Add toplink-essentials.jar and toplink-essentials-agent.jar to <EXAMPLE_HOME>\lib.
Is there any more information in the stack trace that
might help figure out why the second persistence unit
cannot be initialized?javax.persistence.PersistenceException: No Persistence provider for EntityManager named xxx
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:33)
Are you setting up any TopLink session configuration
properties in your persistence unit (i.e.
toplink.session-name)?No. I have only session customizer, that does following in customize()
JNDIConnector connector = (JNDIConnector) session.getLogin().getConnector();
connector.setLookupType(JNDIConnector.STRING_LOOKUP);
session.getLogin().setTableQualifier(schema);
Bye,
Lumir

What are the difference between TopLink and TopLink Essentials...?

What are the difference between TopLink, TopLink Essentials, EclipseLink and TopLink Essentials-GlassFish?
What is the difference of their functions?
Edited by: qkc on Nov 21, 2009 10:52 AM

Difference between TopLink and ToPLink Essentials:
TopLink Essentials are the reference implementation (RI) of JPA, is an open source effort that is licensed under the Common Development and Distribution License (CDDL) v1.0. It can be freely downloaded and used under the terms of this license agreement. This means, you can only use it for the management of persistence and orm with Java EE and Java SE. The binary distribution of TopLink consist of 2 jars:
* toplink-essentials-agent.jar: contains Java Persistence API; XML Schemas and TopLink essentials implementation
* toplink-essentials.jar: contains java agent class requires in a standolane Java SE application
In addition to TopLink Essentials that makes the JPA implementation alive, Oracle offers its Oracle TopLink product (10.1.3) that contains an earlier preview binary of JPA and also offers developers additional object-relational capabilities, object-XML mapping (JAXB), non-relational mapping using Java 2.0 Connector Architecture (JCA).
Let's wait other person to answer these questions.

What are the relation between JPA and Hibernate, JPA and TopLink?

What are the relation between JPA and Hibernate, JPA and TopLink?
Can JPA instead of Hibernate and TopLink?

The Java Persistence API (JPA) is the object relational mapping persistence
standard for Java. Hibernate and TopLink provide an Open source Object-relational mapping framework for Java.
They provide an implementation for the Java Persistence API. In my opinion, both Hibernate and TopLink provide support to JPA
and they can also be regarded as the complementary to JPA.
Let's wait to see other person's opinions.

Database Change Notification and TopLink Cache Invalidation

Has someone succeeed in implementing the How-to Database Change Notification and TopLink Cache Invalidation.
I have corrected some document errata about the pl/sql content and I manage to have messages in the 'notify_queue'.
I obtain the Topic in Java from this queue.
But the TopicSuscriber instances do not receive any message. Is there something to have in mind to make it work ?
Regards.

Reviving this thread again...
I am using DCN feature to build a middle-tier cache. I know oracle has problem sending physical rowid in case of 'Index Organized Table', however, in normal table also its not able to send proper rowid.
e.g, I have 2 records in Table A with rowid AAARIUAAGAAAV/uABw and AAARIUAAGAAAV/pAAX.
I have updated both the records. Strangely for the first record, oracle is sending INVALID rowid, although for the second record its sending the valid one.
Following is the output:
Row 1: (Wrong rowid being sent, AAARIUAAGAAAV/uABw is replaced with AAARIUAAGAAAXDCAAr)
Connection information : local=localhost.localdomain/127.0.0.1:47633, remote=localhost.localdomain/127.0.0.1:2278
Registration ID         : 2102
Notification version    : 1
Event type              : OBJCHANGE
Database name           : <sid>
Table Change Description (length=1)
    operation=[UPDATE], tableName=<table_name>, objectNumber=70164
    Row Change Description (length=1):
      ROW: operation=UPDATE, ROWID=AAARIUAAGAAAXDCAAr
Row 2: (Right rowid being sent, AAARIUAAGAAAV/pAAX)
Connection information : local=localhost.localdomain/127.0.0.1:47633, remote=localhost.localdomain/127.0.0.1:2278
Registration ID         : 2102
Notification version    : 1
Event type              : OBJCHANGE
Database name           : <sid>
Table Change Description (length=1)
    operation=[UPDATE], tableName=<table_name>, objectNumber=70164
    Row Change Description (length=1):
      ROW: operation=UPDATE, ROWID=AAARIUAAGAAAV/pAAX
Any idea ?

Weblogic 6.1 and Toplink 3.6.1

I am having problems with connections not closing, we have a connection pool
setup to our Sybase ASE 12.0 database using the jconnect driver.
The connection pool maxes out at 50 connections but after those 50
connections are gone, requests fail...
Any Ideas?

Hello,
I am having same problem with weblogic6.1sp3 and toplink 903.
I have one connection pool 'OraclePool'.
I have two data sources added and refereing to that pool.
My toplink.xml looks like this.
<login>
<datasource>oracleDataSource</datasource>
<non-jts-datasource>oracleNonJTSDataSource</non-jts-datasource>
</login>
I have max capacity of 60 to that pool.
When i run sql queries simultaneously server works ok, it uses all connections efficiently.
But when i use update method using toplink, connections max out.
And it says 'No connections available in the pool'.
How can we find out if toplink closes connections efficiently
after each transaction. Please let me know
what is wrong with my setup.
Thanks
George

Hibernate's dual-layer cach and TopLink's caching strategy

Dear members,
I understand that caching between hibernate and toplink is implemented (or utilized) differently. Hibernate seems to have 'dual-layer caching' (which may imply they have two layers of cache) whereas TopLink has session cache and shared cache. The way I see it, they seem to be aiming for the same thing. Are there any differences between (obviously there are, only that I do not know them) those two caching architectures, and how different are they?
Howard

Yes there are differences :) For details check out
TopLink vs Hibernate... revisited... again :)
and
Indirection - how are references resolved after session has been closed?

JDeveloper Prerelease 10.1.3 and toplink

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