[castor-dev] castor-jdo: Unable upadte an object..

Hi,

I am using Castor-JDO for database operations.

I am trying to update an object. When I retreive an object and try to update it, it throws the following exception:

java.lang.IllegalArgumentException: A master object that involves in a long transaction must be a TimeStampable!

at org.exolab.castor.persist.ClassMolder.update(ClassMolder.java:1727)

at org.exolab.castor.persist.LockEngine.update(LockEngine.java:638)

at org.exolab.castor.persist.TransactionContext.markUpdate(TransactionContext.java:920)

at org.exolab.castor.persist.TransactionContext.update(TransactionContext.java:991)

at org.exolab.castor.jdo.engine.DatabaseImpl.update(DatabaseImpl.java:353)

at com.smartifacts.narmada.CastorTestClient.updateRecord(CastorTestClient.java:155)

at com.smartifacts.narmada.CastorTestClient.main(CastorTestClient.java:222)

Here it is the code which I am using:

try{
db = jdo.getDatabase();

        db.begin();
            String id="3";
            Test_table x = (Test_table)db.load(Test_table.class, id );
        db.commit();

        x.setId("2");
        db.setAutoStore(true);
        db.begin();
            db.update(x);
        db.commit();

db.close();

    }
    catch(Exception e){
      e.printStackTrace();
    }

What could have been wrong with this? Can somebody help me on this.

Thanks

Veeru.

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