ITreeChangeListener.java

/*******************************************************************************
 * 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);
}