Locking an object with lock mode WRITE failed

[Thomas Phan]

Hi,

I get:

[org.apache.ojb.odmg.TransactionImpl] ERROR: Locking obj
[EMAIL PROTECTED] with lock mode 4 failed
[Lcom.entersys.escds.interfaces.UserRole;
org.odmg.ClassNotPersistenceCapableException:
[Lcom.entersys.escds.interfaces.UserRole;
        at org.apache.ojb.odmg.ObjectEnvelope.manage(Unknown Source)
        at org.apache.ojb.odmg.ObjectEnvelope.<init>(Unknown Source)
        at org.apache.ojb.odmg.TransactionImpl.register(Unknown Source)
        at org.apache.ojb.odmg.TransactionImpl.lock(Unknown Source)
        at com.entersys.util.DAOHelper.update(DAOHelper.java:159)
        at
com.entersys.escds.services.DAOSoapBindingImpl.updateUser(DAOSoapBindingImpl
.java:479)

when I attempt to lock an object that has an array property (1:n and
unidirectional)

What would be the problem? I don't want to use java.util.Collection, as my
User class will serialize/deserialize using SOAP

thanks

my code:

 public Object update(Object data) throws Exception {
  Transaction tx = odmg.newTransaction();
  tx.begin();
  try {
   Object o = ((HasBroker) tx).getBroker().getObjectByQuery(new
QueryByIdentity(data));
   tx.lock(o, Transaction.WRITE); <- throws the exception here
   org.apache.commons.beanutils.PropertyUtils.copyProperties(o, data);
   tx.commit();
  }
  catch (Throwable t) {
   tx.abort();
   throw new Exception(t.getMessage());
  }
  return data;
 }

public class User  implements java.io.Serializable {
    private java.lang.String userId;
...
    private com.entersys.escds.interfaces.UserRole[] userRoles;

    public java.lang.String getUserId() {
        return userId;
    }

    public void setUserId(java.lang.String userId) {
        this.userId = userId;
    }
...
    public com.entersys.escds.interfaces.UserRole[] getUserRoles() {
        return userRoles;
    }

    public void setUserRoles(com.entersys.escds.interfaces.UserRole[]
userRoles) {
        this.userRoles = userRoles;
    }
}

<!-- Definitions for com.entersys.escds.interfaces.User -->
   <class-descriptor
      class="com.entersys.escds.interfaces.User"
      table="Users"
   >
      <field-descriptor id="1"
         name="userId"
         column="userId"
         jdbc-type="VARCHAR"
         primarykey="true"
      />
...
      <collection-descriptor
         name="userRoles"
         element-class-ref="com.entersys.escds.interfaces.UserRole"
         auto-retrieve="true"
         auto-update="true"
         auto-delete="true"
      >
         <inverse-foreignkey field-id-ref="1"/>
      </collection-descriptor>
   </class-descriptor>

<!-- Definitions for com.entersys.escds.interfaces.UserRole -->
   <class-descriptor
      class="com.entersys.escds.interfaces.UserRole"
      table="UserRole"
   >
      <field-descriptor id="1"
         name="userId"
         column="userId"
         jdbc-type="VARCHAR"
         primarykey="true"
      />
      <field-descriptor id="2"
         name="roleId"
         column="roleId"
         jdbc-type="VARCHAR"
         primarykey="true"
      />
   </class-descriptor>


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