diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/listener/awt/AWTCollectionChangeListenerWrapper.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/listener/awt/AWTCollectionChangeListenerWrapper.java | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/listener/awt/AWTCollectionChangeListenerWrapper.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/listener/awt/AWTCollectionChangeListenerWrapper.java deleted file mode 100644 index b8af52a34e..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/listener/awt/AWTCollectionChangeListenerWrapper.java +++ /dev/null @@ -1,161 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 Oracle. 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: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.utility.internal.model.listener.awt; - -import java.awt.EventQueue; - -import org.eclipse.jpt.common.utility.model.event.CollectionAddEvent; -import org.eclipse.jpt.common.utility.model.event.CollectionChangeEvent; -import org.eclipse.jpt.common.utility.model.event.CollectionClearEvent; -import org.eclipse.jpt.common.utility.model.event.CollectionRemoveEvent; -import org.eclipse.jpt.common.utility.model.listener.CollectionChangeListener; - -/** - * Wrap another collection change listener and forward events to it on the AWT - * event queue, asynchronously if necessary. If the event arrived on the UI - * thread that is probably because it was initiated by a UI widget; as a - * result, we want to loop back synchronously so the events can be - * short-circuited. - */ -public final class AWTCollectionChangeListenerWrapper - implements CollectionChangeListener -{ - private final CollectionChangeListener listener; - - public AWTCollectionChangeListenerWrapper(CollectionChangeListener listener) { - super(); - if (listener == null) { - throw new NullPointerException(); - } - this.listener = listener; - } - - public void itemsAdded(CollectionAddEvent event) { - if (this.isExecutingOnUIThread()) { - this.itemsAdded_(event); - } else { - this.executeOnEventQueue(this.buildItemsAddedRunnable(event)); - } - } - - public void itemsRemoved(CollectionRemoveEvent event) { - if (this.isExecutingOnUIThread()) { - this.itemsRemoved_(event); - } else { - this.executeOnEventQueue(this.buildItemsRemovedRunnable(event)); - } - } - - public void collectionCleared(CollectionClearEvent event) { - if (this.isExecutingOnUIThread()) { - this.collectionCleared_(event); - } else { - this.executeOnEventQueue(this.buildCollectionClearedRunnable(event)); - } - } - - public void collectionChanged(CollectionChangeEvent event) { - if (this.isExecutingOnUIThread()) { - this.collectionChanged_(event); - } else { - this.executeOnEventQueue(this.buildCollectionChangedRunnable(event)); - } - } - - private Runnable buildItemsAddedRunnable(final CollectionAddEvent event) { - return new Runnable() { - public void run() { - AWTCollectionChangeListenerWrapper.this.itemsAdded_(event); - } - @Override - public String toString() { - return "items added runnable"; //$NON-NLS-1$ - } - }; - } - - private Runnable buildItemsRemovedRunnable(final CollectionRemoveEvent event) { - return new Runnable() { - public void run() { - AWTCollectionChangeListenerWrapper.this.itemsRemoved_(event); - } - @Override - public String toString() { - return "items removed runnable"; //$NON-NLS-1$ - } - }; - } - - private Runnable buildCollectionClearedRunnable(final CollectionClearEvent event) { - return new Runnable() { - public void run() { - AWTCollectionChangeListenerWrapper.this.collectionCleared_(event); - } - @Override - public String toString() { - return "collection cleared runnable"; //$NON-NLS-1$ - } - }; - } - - private Runnable buildCollectionChangedRunnable(final CollectionChangeEvent event) { - return new Runnable() { - public void run() { - AWTCollectionChangeListenerWrapper.this.collectionChanged_(event); - } - @Override - public String toString() { - return "collection changed runnable"; //$NON-NLS-1$ - } - }; - } - - private boolean isExecutingOnUIThread() { - return EventQueue.isDispatchThread(); - } - - /** - * {@link EventQueue#invokeLater(Runnable)} seems to work OK; - * but using {@link EventQueue#invokeAndWait(Runnable)} can sometimes make - * things more predictable when debugging, at the risk of deadlocks. - */ - private void executeOnEventQueue(Runnable r) { - EventQueue.invokeLater(r); -// try { -// EventQueue.invokeAndWait(r); -// } catch (InterruptedException ex) { -// throw new RuntimeException(ex); -// } catch (java.lang.reflect.InvocationTargetException ex) { -// throw new RuntimeException(ex); -// } - } - - void itemsAdded_(CollectionAddEvent event) { - this.listener.itemsAdded(event); - } - - void itemsRemoved_(CollectionRemoveEvent event) { - this.listener.itemsRemoved(event); - } - - void collectionCleared_(CollectionClearEvent event) { - this.listener.collectionCleared(event); - } - - void collectionChanged_(CollectionChangeEvent event) { - this.listener.collectionChanged(event); - } - - @Override - public String toString() { - return "AWT(" + this.listener.toString() + ')'; //$NON-NLS-1$ - } - -} |