Re: [castor-dev] using TransactionManager & XA Resource Pool

Venkat Dosapati Tue, 19 Aug 2003 06:09:07 -0700

Hi patrick,

I am not using castor in J2EE mode. I want to use Castor in non-EJB application.

For this I use Tomcat-4.1.24, MySQL-4.0.12 DB, JDK 1.4.2.

I tried to configure XA-compliant Datasource XAPool with Castor. But I couldnt succeed.

How can I use JNDI option in database.xml.

When I configured JNDI resource like this in database.xml:

I am getting this errors:

[test] org.exolab.castor.jdo.DatabaseNotFoundException: Nested error: org.xml.sax.SAXException: unable to find FieldDescriptor for 'param' in ClassDescriptor of jndi{file: file:/D:/Tech/jdo/castor-0.9.5-src/build/examples/jdo/database.xml; line: 47; column: 70}
[test] org.xml.sax.SAXException: unable to find FieldDescriptor for 'param' in ClassDescriptor of jndi
[test] at org.exolab.castor.xml.UnmarshalHandler.startElement(UnmarshalHandler.java:1224)
[test] at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
[test] at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source)
[test] at org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
[test] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
[test] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
[test] at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
[test] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
[test] at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
[test] at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
[test] at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
[test] at org.exolab.castor.xml.Unmarshaller.unmarshal(Unmarshaller.java:555)
[test] at org.exolab.castor.jdo.engine.DatabaseRegistry.loadDatabase(DatabaseRegistry.java:241)
[test] at org.exolab.castor.jdo.JDO.getDatabase(JDO.java:583)
[test] at jdo.Test.runMyProduct(Test.java:375)
[test] at jdo.Test.main(Test.java:63)

Can I use JNDI tag in database.xml to load JNDI resource? what was the problem with my configuration data.

thanx

Venkat

----- Original Message -----

From: Werner Guttmann

To: [EMAIL PROTECTED]

Sent: Tuesday, August 19, 2003 5:18 PM

Subject: Re: [castor-dev] using TransactionManager & XA Resource Pool

Venkat,

just reading this a bit late, but can you please briefly describe your runtime enviroment. From your description, I am
getting the impression that you want to use Castor in J2EE mode ? If that's the case, what's your application server ?
Rather than trying to configure XA-compliant DataSources, etc. yourself, you could rely on the features of the
application server and simply use these features from within Castor by the means of a JNDI lookup.

Werner

On Mon, 18 Aug 2003 11:50:47 +0530, Venkat Dosapati wrote:

>Sorry patrick,
>
>I came to know that we can configure datasources from mapping.xml.
>I will have a try and will ask you if I get any problems.
>
>thanx
>Venkat
>
>----- Original Message -----
>From: "Venkat Dosapati" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Sent: Monday, August 18, 2003 9:37 AM
>Subject: Re: [castor-dev] using TransactionManager & XA Resource Pool
>
>
>> Hi pattrick,
>> Thank you for your response!
>>
>> At the same time I want to use connection pool which can be like
>> XAPool(XA-compliant).
>> How can I use that with addition to TransactionManager in this JDO.
>>
>> thanx
>> Venkat
>> ----- Original Message -----
>> From: "Patrick van Kann" <[EMAIL PROTECTED]>
>> To: <[EMAIL PROTECTED]>
>> Sent: Wednesday, August 13, 2003 7:12 PM
>> Subject: Re: [castor-dev] using TransactionManager & XA Resource Pool
>>
>>
>> > You can call setTransactionManager(String
>> > jndiNameOfTransactionManagerInYourJ2EEServer) on the JDO object.
>> > Typically you would do this on a JDO instance that itself would then be
>> > registered in JNDI for use by your app.
>> >
>> > You would then manage the transactions in castor using a UserTransaction
>> > obtained from the TransactionManager managing JDO.
>> >
>> > UserTransaction ut = ( UserTransaction )
>> ic.lookup( "java/utJndiAddress" );
>> > DataObjects jdo jdo = ( DataObjects )
>>
>p(
>> > "java/jdoJndiAddressOfJDOInstanceUponWhichYouHaveSetTransactionManagerAbove"
>> > );
>> > ut.begin()
>> > Database db = jdo.getDatabase();
>> > file://...do your stuff
>> > ut.commit();
>> > return data;
>> >
>> > Note that you must begin your tranny before you get the Database from
>> > the DataObject.
>> >
>> > Hope this helps.
>> >
>> > Patrick
>> >
>> >
>> > Venkat Dosapati wrote:
>> >
>> > >hi all,
>> > >
>> > >Can I use JTA & JTS compliant Transaction Manager & XA-compliant connection
>> > >pool
>> > >with Castor JDO. where can set the configuration to use them.
>> > >
>> > >In my case I want to use JOTM [
>TransactionManager] & XAPool [XA resource
>> > >pool]
>> > >with Castor JDO.
>> > >
>> > >Did anyone try this?
>> > >
>> > >thanks
>> > >Venkat
>> > >
>> > >-----------------------------------------------------------
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>> > >
>> > >
>> >
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