Mercurial > projects > dwt2
view org.eclipse.core.databinding/src/org/eclipse/core/databinding/observable/map/AbstractObservableMap.d @ 94:1d37a7813832
First Databinding Snippet (004) builds
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 19 Apr 2009 17:37:36 +0200 |
parents | 6be48cf9f95c |
children | 48d4ee626868 |
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/******************************************************************************* * Copyright (c) 2006, 2008 IBM Corporation 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: * IBM Corporation - initial API and implementation * Brad Reynolds - bug 164653 * Matthew Hall - bug 118516 *******************************************************************************/ module org.eclipse.core.databinding.observable.map.AbstractObservableMap; import org.eclipse.core.databinding.observable.map.MapDiff; import org.eclipse.core.databinding.observable.map.MapChangeEvent; import org.eclipse.core.databinding.observable.map.IMapChangeListener; import org.eclipse.core.databinding.observable.map.IObservableMap; import java.lang.all; import java.util.AbstractMap; import java.util.Set; import java.util.Map; import org.eclipse.core.databinding.observable.ChangeEvent; import org.eclipse.core.databinding.observable.ChangeSupport; import org.eclipse.core.databinding.observable.IChangeListener; import org.eclipse.core.databinding.observable.IStaleListener; import org.eclipse.core.databinding.observable.Realm; import org.eclipse.core.databinding.observable.StaleEvent; import org.eclipse.core.runtime.Assert; import org.eclipse.core.runtime.AssertionFailedException; /** * * <p> * This class is thread safe. All state accessing methods must be invoked from * the {@link Realm#isCurrent() current realm}. Methods for adding and removing * listeners may be invoked from any thread. * </p> * @since 1.0 */ public abstract class AbstractObservableMap : AbstractMap , IObservableMap { // DWT start reimplement public override int size(){ return super.size(); } public override bool isEmpty(){ return super.isEmpty(); } public override bool containsKey(Object o){ return super.containsKey(o); } public override bool containsValue(Object o){ return super.containsValue(o); } public override Object get(Object o){ return super.get(o); } public override Object put(Object key, Object value){ return super.put(key, value); } public override equals_t opEquals(Object o){ return super.opEquals(o); } public override hash_t toHash(){ return super.toHash(); } public override Object remove(Object o){ return super.remove(o); } public override Set keySet(){ return super.keySet(); } public override Set values(){ return super.values(); } public int opApply (int delegate(ref Object value) dg){ foreach( entry; entrySet() ){ auto me = cast(Map.Entry)entry; auto v = me.getValue(); int res = dg( v ); if( res ) return res; } return 0; } public int opApply (int delegate(ref Object key, ref Object value) dg){ foreach( entry; entrySet() ){ auto me = cast(Map.Entry)entry; auto k = me.getKey(); auto v = me.getValue(); int res = dg( k, v ); if( res ) return res; } return 0; } // DWT end reimplement private ChangeSupport changeSupport; private bool stale; /** */ public this() { this(Realm.getDefault()); } /** * */ protected void lastListenerRemoved() { } /** * */ protected void firstListenerAdded() { } /** * @param realm */ public this(Realm realm) { Assert.isNotNull(realm, "Realm cannot be null"); //$NON-NLS-1$ changeSupport = new class(realm) ChangeSupport { this(Realm r){ super(r);} protected void firstListenerAdded() { this.outer.firstListenerAdded(); } protected void lastListenerRemoved() { this.outer.lastListenerRemoved(); } }; } public synchronized void addMapChangeListener(IMapChangeListener listener) { changeSupport.addListener(MapChangeEvent.TYPE, listener); } public synchronized void removeMapChangeListener(IMapChangeListener listener) { changeSupport.removeListener(MapChangeEvent.TYPE, listener); } public synchronized void addChangeListener(IChangeListener listener) { changeSupport.addChangeListener(listener); } public synchronized void addStaleListener(IStaleListener listener) { changeSupport.addStaleListener(listener); } public synchronized void dispose() { changeSupport.dispose(); changeSupport = null; } public Realm getRealm() { return changeSupport.getRealm(); } public bool isStale() { checkRealm(); return stale; } public synchronized void removeChangeListener(IChangeListener listener) { changeSupport.removeChangeListener(listener); } public synchronized void removeStaleListener(IStaleListener listener) { changeSupport.removeStaleListener(listener); } /** * Sets the stale state. Must be invoked from the current realm. * * @param stale */ public void setStale(bool stale) { checkRealm(); this.stale = stale; if (stale) { fireStale(); } } /** * Fires stale events. Must be invoked from current realm. */ protected void fireStale() { checkRealm(); changeSupport.fireEvent(new StaleEvent(this)); } /** * Fires change events. Must be invoked from current realm. */ protected void fireChange() { checkRealm(); changeSupport.fireEvent(new ChangeEvent(this)); } /** * Fires map change events. Must be invoked from current realm. * * @param diff */ protected void fireMapChange(MapDiff diff) { checkRealm(); changeSupport.fireEvent(new MapChangeEvent(this, diff)); } /** * Asserts that the realm is the current realm. * * @see Realm#isCurrent() * @throws AssertionFailedException * if the realm is not the current realm */ protected void checkRealm() { Assert.isTrue(getRealm().isCurrent(), "This operation must be run within the observable's realm"); //$NON-NLS-1$ } }