/*

  * Copyright 2007-2010 The Kuali Foundation

  *

  * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php

  *

  * 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.

  */

 package org.kuali.rice.kns.datadictionary.impl;

 import java.util.List;

 import org.kuali.rice.kns.datadictionary.FieldOverride;

 /**

  * A Field Override used to delete elements from a Data Dictionary bean. 

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class FieldOverrideForListElementDeleteImpl extends FieldOverrideForListElementBase  implements FieldOverride{

         public Object performFieldOverride(Object bean, Object property) {

         List oldList = (List)property;

         int deletePos = getElementPositionInList(this.getElement(), oldList );

         if ( deletePos < 0  )

         {

                 throw new RuntimeException("Element to be deleted could not be found:bean=" + bean + ", property=" + property);

         }

         else

         {

                 oldList.remove(deletePos);

         }

         return oldList;

     }

 }