package org.apache.ojb.otm.lock.isolation;

 /* Copyright 2003-2005 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.apache.ojb.otm.core.Transaction;

 import org.apache.ojb.otm.lock.LockingException;

 import org.apache.ojb.otm.lock.ObjectLock;

 public class ReadUncommittedIsolation extends AbstractIsolation

 {

     /**

      * @see org.apache.ojb.otm.lock.TransactionIsolation#lockForRead(Transaction, ObjectLocks)

      */

     public void readLock(Transaction tx, ObjectLock lock)

     {

         // Read locks are always granted

         lock.readLock(tx);

     }

     /**

      * @see org.apache.ojb.otm.lock.TransactionIsolation#lockForWrite(Transaction, ObjectLocks)

      */

     public void writeLock(Transaction tx, ObjectLock lock)

         throws LockingException

     {

         // WriteLock will wait for an existing write lock to be released before it locks

         // it for this transaction

         lock.writeLock(tx);

     }

 }