diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/ListPropertyValueModelAdapter.java')
-rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/ListPropertyValueModelAdapter.java | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/ListPropertyValueModelAdapter.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/ListPropertyValueModelAdapter.java deleted file mode 100644 index 6c78b4fd62..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/ListPropertyValueModelAdapter.java +++ /dev/null @@ -1,166 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008 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.utility.internal.model.value; - -import org.eclipse.jpt.utility.model.event.ListChangeEvent; -import org.eclipse.jpt.utility.model.listener.ListChangeListener; -import org.eclipse.jpt.utility.model.value.ListValueModel; - -/** - * This abstract class provides the infrastructure needed to wrap - * a list value model, "lazily" listen to it, and convert - * its change notifications into property value model change - * notifications. - * - * Subclasses must override: - * - #buildValue() - * to return the current property value, as derived from the - * current list value - * - * Subclasses might want to override: - * - #itemsAdded(ListChangeEvent event) - * - #itemsRemoved(ListChangeEvent event) - * - #itemsReplaced(ListChangeEvent event) - * - #itemsMoved(ListChangeEvent event) - * - #listCleared(ListChangeEvent event) - * - #listChanged(ListChangeEvent event) - * to improve performance (by not recalculating the value, if possible) - */ -public abstract class ListPropertyValueModelAdapter<T> - extends AspectPropertyValueModelAdapter<T> -{ - /** The wrapped list value model. */ - protected final ListValueModel<?> listHolder; - - /** A listener that allows us to synch with changes to the wrapped list holder. */ - protected final ListChangeListener listChangeListener; - - - // ********** constructor/initialization ********** - - /** - * Construct a property value model with the specified wrapped - * list value model. - */ - protected ListPropertyValueModelAdapter(ListValueModel<?> listHolder) { - super(); - this.listHolder = listHolder; - this.listChangeListener = this.buildListChangeListener(); - } - - protected ListChangeListener buildListChangeListener() { - return new ListChangeListener() { - public void itemsAdded(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.itemsAdded(event); - } - public void itemsRemoved(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.itemsRemoved(event); - } - public void itemsReplaced(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.itemsReplaced(event); - } - public void itemsMoved(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.itemsMoved(event); - } - public void listCleared(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.listCleared(event); - } - public void listChanged(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.listChanged(event); - } - @Override - public String toString() { - return "list change listener"; - } - }; - } - - - // ********** behavior ********** - - /** - * Start listening to the list holder. - */ - @Override - protected void engageModel_() { - this.listHolder.addListChangeListener(ListValueModel.LIST_VALUES, this.listChangeListener); - } - - /** - * Stop listening to the list holder. - */ - @Override - protected void disengageModel_() { - this.listHolder.removeListChangeListener(ListValueModel.LIST_VALUES, this.listChangeListener); - } - - @Override - public void toString(StringBuilder sb) { - sb.append(this.listHolder); - } - - - // ********** collection change support ********** - - /** - * Items were added to the wrapped list holder; - * propagate the change notification appropriately. - */ - protected void itemsAdded(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - - /** - * Items were removed from the wrapped list holder; - * propagate the change notification appropriately. - */ - protected void itemsRemoved(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - - /** - * Items were replaced in the wrapped list holder; - * propagate the change notification appropriately. - */ - protected void itemsReplaced(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - - /** - * Items were moved in the wrapped list holder; - * propagate the change notification appropriately. - */ - protected void itemsMoved(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - - /** - * The wrapped list holder was cleared; - * propagate the change notification appropriately. - */ - protected void listCleared(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - - /** - * The value of the wrapped list holder has changed; - * propagate the change notification appropriately. - */ - protected void listChanged(ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } - -} |