package org.apache.ojb.odmg;
   
   /* Copyright 2002-2005 The Apache Software Foundation
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  import org.odmg.LockNotGrantedException;
  import org.apache.ojb.broker.PersistenceBroker;
  import org.apache.ojb.broker.Identity;
  import org.apache.ojb.broker.PersistenceBrokerException;
  
  /**
   * Wraps {@link org.odmg.Transaction} in managed environments.
   *
   * @author <a href="mailto:armin@codeAuLait.de">Armin Waibel</a>
   */
  public class NarrowTransaction implements TransactionExt
  {
      private TransactionImpl tx;
  
      public NarrowTransaction(TransactionImpl tx)
      {
          this.tx = tx;
      }
  
      public TransactionImpl getRealTransaction()
      {
          return tx;
      }
  
      public void markDelete(Object anObject)
      {
          this.tx.markDelete(anObject);
      }
  
      public void markDirty(Object anObject)
      {
          this.tx.markDirty(anObject);
      }
  
      public void flush()
      {
          tx.flush();
      }
  
      /**
       * Return associated PB instance, or null if not found.
       */
      public PersistenceBroker getBroker()
      {
          return tx.getBroker();
      }
  
      /**
       * Not supported!!
       */
      public void join()
      {
          throw new UnsupportedOperationException("Not supported operation");
      }
  
      /**
       * Not supported!!
       */
      public void leave()
      {
          throw new UnsupportedOperationException("Not supported operation");
      }
  
      /**
       * Not supported!!
       */
      public void begin()
      {
          throw new UnsupportedOperationException("Not supported operation");
      }
  
      /**
       * Not supported!!
       */
      public boolean isOpen()
      {
          return tx.isOpen();
      }
  
      /**
       * Not supported!!
       */
     public void commit()
     {
         throw new UnsupportedOperationException("Not supported operation");
     }
 
     /**
      * Abort the underlying odmg-transaction
      */
     public void abort()
     {
         tx.abort();
         //throw new UnsupportedOperationException("Not supported operation");
     }
 
     /**
      * Not supported!!
      */
     public void checkpoint()
     {
         throw new UnsupportedOperationException("Not supported operation");
     }
 
     /**
      * lock the given object
      * @see org.odmg.Transaction#lock
      */
     public void lock(Object obj, int lockMode)
             throws LockNotGrantedException
     {
         tx.lock(obj, lockMode);
     }
 
     /**
      * lock the given object if possible
      * @see org.odmg.Transaction#tryLock
      */
     public boolean tryLock(Object obj, int lockMode)
     {
         return tx.tryLock(obj, lockMode);
     }
 
 	public Object getObjectByIdentity(Identity id)
 			throws PersistenceBrokerException
 	{
 		return tx.getObjectByIdentity(id);
 	}
     /**
      * @see org.apache.ojb.odmg.TransactionExt#setImplicitLocking(boolean)
      */
     public void setImplicitLocking(boolean value)
     {
     	tx.setImplicitLocking(value);
     }
 
     /**
      * @see org.apache.ojb.odmg.TransactionExt#isImplicitLocking
      */
     public boolean isImplicitLocking()
     {
         return tx.isImplicitLocking();
     }
 
     /**
      * @see org.apache.ojb.odmg.TransactionExt#setCascadingDelete(Class, String, boolean)
      */
     public void setCascadingDelete(Class target, String referenceField, boolean doCascade)
     {
         tx.setCascadingDelete(target, referenceField, doCascade);
     }
 
     /**
      * @see org.apache.ojb.odmg.TransactionExt#setCascadingDelete(Class, boolean) 
      */
     public void setCascadingDelete(Class target, boolean doCascade)
     {
         tx.setCascadingDelete(target, doCascade);
     }
 
     public boolean isOrdering()
     {
         return tx.isOrdering();
     }
 
     public void setOrdering(boolean ordering)
     {
         tx.setOrdering(ordering);
     }
 
 //    public boolean isNoteUserOrder()
 //    {
 //        return tx.isNoteUserOrder();
 //    }
 //
 //    public void setNoteUserOrder(boolean noteUserOrder)
 //    {
 //        tx.setNoteUserOrder(noteUserOrder);
 //    }
 
     public boolean isDeleted(Identity id)
     {
         return tx.isDeleted(id);
     }
 }