/*
* Copyright (c) 2006 Stiftung Deutsches Elektronen-Synchroton,
* Member of the Helmholtz Association, (DESY), HAMBURG, GERMANY.
*
* THIS SOFTWARE IS PROVIDED UNDER THIS LICENSE ON AN "../AS IS" BASIS.
* WITHOUT WARRANTY OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE AND
* NON-INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
* FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. SHOULD THE SOFTWARE PROVE DEFECTIVE
* IN ANY RESPECT, THE USER ASSUMES THE COST OF ANY NECESSARY SERVICING, REPAIR OR
* CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
* NO USE OF ANY SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
* DESY HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
* OR MODIFICATIONS.
* THE FULL LICENSE SPECIFYING FOR THE SOFTWARE THE REDISTRIBUTION, MODIFICATION,
* USAGE AND OTHER RIGHTS AND OBLIGATIONS IS INCLUDED WITH THE DISTRIBUTION OF THIS
* PROJECT IN THE FILE LICENSE.HTML. IF THE LICENSE IS NOT INCLUDED YOU MAY FIND A COPY
* AT HTTP://WWW.DESY.DE/LEGAL/LICENSE.HTM
*/
package org.csstudio.dal.group;
import java.util.EventObject;
import org.csstudio.dal.DynamicValueProperty;
/**
* Event object fired in <code>GroupListener</code> event methods.
*
* @author Igor Kriznar (igor.kriznarATcosylab.com)
*
* @param <T> exact group type
*/
public class PropertyGroupEvent<T extends DynamicValueProperty<?>> extends EventObject
{
private static final long serialVersionUID = 1L;
private T[] members;
/**
* Creates a new GroupEvent object.
*
* @param source source of the event
* @param members members which were added or removed
*/
public PropertyGroupEvent(PropertyCollection<T> source, T[] members)
{
super(source);
this.members = members;
if (members == null) {
throw new NullPointerException("members");
}
if (members.length == 0) {
throw new IllegalArgumentException("Members aray is empty");
}
}
/**
* Returns collection source, if this event is assotiated with
* property group.
*
* @return collection source
*/
@SuppressWarnings("unchecked")
public PropertyCollection<T> getPropertyCollectionSource()
{
return (PropertyCollection<T>)getSource();
}
/**
* Returns members, which were added or romoved from collection.
*
* @return added or removed collection members
*/
public T[] getMembers()
{
return members;
}
} /* __oOo__ */
/* __oOo__ */