package org.apache.ojb.odmg.link;

 /* 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.apache.commons.lang.builder.ToStringBuilder;

 import org.apache.ojb.broker.PersistenceBroker;

 import org.apache.ojb.broker.metadata.ObjectReferenceDescriptor;

 /**

  * @author <a href="mailto:arminw@apache.org">Armin Waibel</a>

  * @version $Id: LinkEntry.java,v 1.1 2007-08-24 22:17:41 ewestfal Exp $

  */

 public abstract class LinkEntry

 {

     final boolean isUnlink;

     final Object source;

     final Object referenceToLink;

     final ObjectReferenceDescriptor ord;

     protected LinkEntry(Object source, ObjectReferenceDescriptor ord, Object referenceToLink, boolean unlink)

     {

         this.source = source;

         this.ord = ord;

         this.referenceToLink = referenceToLink;

         isUnlink = unlink;

     }

     public abstract void execute(final PersistenceBroker broker);

     public String toString()

     {

         return new ToStringBuilder(this)

                 .append("source", source)

                 .append("descriptor", ord)

                 .append("referenceToLink", referenceToLink)

                 .append("isUnlink", isUnlink)

                 .toString();

     }

 }