db-ojb-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ate Douma <...@douma.nu>
Subject Jetspeed-2: Cannot get FieldConversion working on autoIncrement field
Date Fri, 23 Apr 2004 10:57:35 GMT
Hello,

I'm trying to get the OJB model for Jetspeed 2 working against an Oracle 
database (9.2.0.1).
Up until now the model was only used against HSQLDB. After trying to 
switch to Oracle a few blocking issues were encountered which we didn't 
notice when using HSQLDB.

One of these is that for a PK of a table we use a custom object which is 
mapped onto a INTEGER field in the database. That field also has 
autoincrement=true.
On HSQLDB we didn't have a FieldConversion defined for the object which 
strangly does work (HSQLDB probably *fixes* this error with new 
Integer(object.toString())).
On Oracle it throwed correctly a ClassCastException (by the Oracle jdbc 
driver).
So now we defined the FieldConversion but were confronted with another
exception: IllegalArgumentException from 
sun.reflect.UnsafeIntegerFieldAccessorImpl.set (see below).

The field definition looks like this:

       <field-descriptor
          name="id"
          column="APPLICATION_ID"
          jdbc-type="INTEGER"
          primarykey="true"
          autoincrement="true" 
conversion="org.apache.jetspeed.util.ojb.ObjectIDtoLongFieldConversion"
       />

and the FieldConvertion is as follows:

public class ObjectIDtoLongFieldConversion implements FieldConversion
{
    public Object javaToSql(Object arg0) throws ConversionException
     {
         if (arg0 instanceof JetspeedObjectID)
         {
             JetspeedObjectID oid = (JetspeedObjectID) arg0;
             return new Integer(oid.intValue());
         }
         else
         {
             return arg0;
         }
     }

     public Object sqlToJava(Object arg0) throws ConversionException
     {
         if (arg0 instanceof Number)
         {
             return new JetspeedObjectID(((Number)arg0).intValue());
         }
         else
         {
             return arg0;
         }
     }
}

When running a unit test we get the following errors:

[PersistentField] ERROR: while set field:
[try to set 'object value' in 'target object'
target obj class: 
org.apache.jetspeed.om.portlet.impl.PortletApplicationDefinitionImplid
target field type: int
object value class: org.apache.jetspeed.util.JetspeedObjectID
object value: 41
]
null
------------- ---------------- ---------------
------------- Standard Error -----------------
java.lang.IllegalArgumentException
     at 
sun.reflect.UnsafeIntegerFieldAccessorImpl.set(UnsafeIntegerFieldAccessorImpl.java:80)
     at java.lang.reflect.Field.set(Field.java:519)
     at 
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImpl.doSet(PersistentFieldDirectAccessImpl.java:71)
     at 
org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField.set(AbstractPersistentField.java:98)
     at 
org.apache.ojb.broker.util.BrokerHelper.getAutoIncrementValue(BrokerHelper.java:302)
     at 
org.apache.ojb.broker.util.BrokerHelper.getValuesForObject(BrokerHelper.java:345)
     at 
org.apache.ojb.broker.util.BrokerHelper.getKeyValues(BrokerHelper.java:171)
     at org.apache.ojb.broker.Identity.init(Identity.java:118)
     at org.apache.ojb.broker.Identity.<init>(Identity.java:87)
     at 
org.apache.ojb.broker.core.PersistenceBrokerImpl.store(PersistenceBrokerImpl.java:679)
     at 
org.apache.ojb.broker.core.DelegatingPersistenceBroker.store(DelegatingPersistenceBroker.java:174)
     at 
org.apache.ojb.broker.core.DelegatingPersistenceBroker.store(DelegatingPersistenceBroker.java:174)
     at 
org.apache.jetspeed.components.persistence.store.ojb.pb.PBStore.store(PBStore.java:362)
     at 
org.apache.jetspeed.components.persistence.store.ojb.pb.PBStore.makePersistent(PBStore.java:346)
     at 
org.apache.jetspeed.components.portletentity.TestPortletEntityAccessComponent.setupTestData(TestPortletEntityAccessComponent.java:162)
     at 
org.apache.jetspeed.components.portletentity.TestPortletEntityAccessComponent.setUp(TestPortletEntityAccessComponent.java:66)
     at junit.framework.TestCase.runBare(TestCase.java:125)
     at junit.framework.TestResult$1.protect(TestResult.java:106)
     at junit.framework.TestResult.runProtected(TestResult.java:124)
     at junit.framework.TestResult.run(TestResult.java:109)
     at junit.framework.TestCase.run(TestCase.java:118)
     at junit.framework.TestSuite.runTest(TestSuite.java:208)
     at 
org.apache.jetspeed.components.ComponentAwareTestSuite.runTest(ComponentAwareTestSuite.java:141)
     at junit.framework.TestSuite.run(TestSuite.java:203)
     at 
org.apache.jetspeed.components.ComponentAwareTestSuite.run(ComponentAwareTestSuite.java:108)
     at 
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.run(JUnitTestRunner.java:325)
     at 
org.apache.tools.ant.taskdefs.optional.junit.JUnitTestRunner.main(JUnitTestRunner.java:536)
------------- ---------------- ---------------

Testcase: testEntities took 0.75 sec
     Caused an ERROR
Can not init Identity for given object 
org.apache.jetspeed.om.portlet.impl.PortletApplicationDefinitionImpl@1d2b9b7
org.apache.ojb.broker.metadata.ClassNotPersistenceCapableException: Can 
not init Identity for given object 
org.apache.jetspeed.om.portlet.impl.PortletApplicationDefinitionImpl@1d2b9b7
     at org.apache.ojb.broker.Identity.init(Identity.java:125)
     at org.apache.ojb.broker.Identity.<init>(Identity.java:87)
     at 
org.apache.ojb.broker.core.PersistenceBrokerImpl.store(PersistenceBrokerImpl.java:679)
     at 
org.apache.ojb.broker.core.DelegatingPersistenceBroker.store(DelegatingPersistenceBroker.java:174)
     at 
org.apache.ojb.broker.core.DelegatingPersistenceBroker.store(DelegatingPersistenceBroker.java:174)
     at 
org.apache.jetspeed.components.persistence.store.ojb.pb.PBStore.store(PBStore.java:362)
     at 
org.apache.jetspeed.components.persistence.store.ojb.pb.PBStore.makePersistent(PBStore.java:346)
     at 
org.apache.jetspeed.components.portletentity.TestPortletEntityAccessComponent.setupTestData(TestPortletEntityAccessComponent.java:162)
     at 
org.apache.jetspeed.components.portletentity.TestPortletEntityAccessComponent.setUp(TestPortletEntityAccessComponent.java:66)
     at 
org.apache.jetspeed.components.ComponentAwareTestSuite.runTest(ComponentAwareTestSuite.java:141)
     at 
org.apache.jetspeed.components.ComponentAwareTestSuite.run(ComponentAwareTestSuite.java:108)
Caused by: org.apache.ojb.broker.PersistenceBrokerException: Error while 
trying to autoincrement field class 
org.apache.jetspeed.om.portlet.impl.PortletApplicationDefinitionImpl#id
     at 
org.apache.ojb.broker.util.BrokerHelper.getAutoIncrementValue(BrokerHelper.java:307)
     at 
org.apache.ojb.broker.util.BrokerHelper.getValuesForObject(BrokerHelper.java:345)
     at 
org.apache.ojb.broker.util.BrokerHelper.getKeyValues(BrokerHelper.java:171)
     at org.apache.ojb.broker.Identity.init(Identity.java:118)
     ... 19 more
Caused by: org.apache.ojb.broker.metadata.MetadataException: Error 
setting field:id in 
object:org.apache.jetspeed.om.portlet.impl.PortletApplicationDefinitionImpl
     at 
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImpl.doSet(PersistentFieldDirectAccessImpl.java:88)
     at 
org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField.set(AbstractPersistentField.java:98)
     at 
org.apache.ojb.broker.util.BrokerHelper.getAutoIncrementValue(BrokerHelper.java:302)
     ... 22 more
Caused by: java.lang.IllegalArgumentException
     at 
sun.reflect.UnsafeIntegerFieldAccessorImpl.set(UnsafeIntegerFieldAccessorImpl.java:80)
     at java.lang.reflect.Field.set(Field.java:519)
     at 
org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldDirectAccessImpl.doSet(PersistentFieldDirectAccessImpl.java:71)
     ... 24 more


Now, I have been looking long and hard at the code in BrokerHelper but I 
  don't have a real understanding whats going on.

As far as I can tell the generated id value has been converted to our 
JetspeedObjectID correctly but then OJB tries to set that back into the 
persistentField without converting it back (or maybe I got this the 
wrong way around).

We would very much appriciate any help because this really is a Blocking 
situation for us.

If possible please report back on this to the Jetspeed dev list 
(jetspeed-dev@jakarta.apache.org) and/or directly to me: ate@douma.nu as 
I'm currently not subscribed to the ojb list.

Regards,

Ate Douma


---------------------------------------------------------------------
To unsubscribe, e-mail: ojb-dev-unsubscribe@db.apache.org
For additional commands, e-mail: ojb-dev-help@db.apache.org


Mime
View raw message