bundles/org.eclipse.core.databinding.property/src/org/eclipse/core/internal/databinding/property/map/SelfMapProperty.java

/*******************************************************************************
 * Copyright (c) 2009, 2010 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 263868)
 *     Matthew Hall - bug 268203
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.map;

import java.util.Map;

import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.databinding.property.INativePropertyListener;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.core.databinding.property.map.SimpleMapProperty;

/**
 * @param <K>
 *            type of the keys to the map
 * @param <V>
 *            type of the values in the map
 * @since 3.3
 * 
 */
public final class SelfMapProperty<K, V> extends
		SimpleMapProperty<Map<K, V>, K, V> {
	private final Object keyTypeAsObject;
	private final Object valueTypeAsObject;
	private final Class<K> keyType;
	private final Class<V> valueType;

	/**
	 * @param keyType
	 * @param valueType
	 * @deprecated use the constructor that takes Class parameters instead
	 */
	public SelfMapProperty(Object keyType, Object valueType) {
		this.keyTypeAsObject = keyType;
		this.valueTypeAsObject = valueType;
		this.keyType = null;
		this.valueType = null;
	}

	/**
	 * @param keyType
	 * @param valueType
	 */
	public SelfMapProperty(Class<K> keyType, Class<V> valueType) {
		this.keyTypeAsObject = keyType;
		this.valueTypeAsObject = valueType;
		this.keyType = keyType;
		this.valueType = valueType;
	}

	public Object getKeyType() {
		return keyTypeAsObject;
	}

	public Object getValueType() {
		return valueTypeAsObject;
	}

	public Class<K> getKeyClass() {
		return keyType;
	}

	public Class<V> getValueClass() {
		return valueType;
	}

	protected Map<K, V> doGetMap(Map<K, V> source) {
		return source;
	}

	protected void doSetMap(Map<K, V> source, Map<K, V> map, MapDiff<K, V> diff) {
		doUpdateMap(source, diff);
	}

	protected void doUpdateMap(Map<K, V> source, MapDiff<K, V> diff) {
		diff.applyTo(source);
	}

	public INativePropertyListener<Map<K, V>> adaptListener(
			ISimplePropertyListener<MapDiff<K, V>> listener) {
		return null; // no listener API
	}

	protected void doAddListener(Object source,
			INativePropertyListener<Map<K, V>> listener) {
	}

	protected void doRemoveListener(Object source,
			INativePropertyListener<Map<K, V>> listener) {
	}
}