/*******************************************************************************
* Copyright 2013 Geoscience Australia
*
* 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.
******************************************************************************/
package au.gov.ga.earthsci.common.databinding;
/**
* Listens for changes to a tree hierarchy.
* <p/>
* Used by the {@link ObservableListTreeSupport} class.
*
* @author Michael de Hoog (michael.dehoog@ga.gov.au)
*/
public interface ITreeChangeListener<E>
{
/**
* Called when an element was added.
*
* @param element
*/
void elementAdded(E element);
/**
* Called when an element was removed.
*
* @param element
*/
void elementRemoved(E element);
}