diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPropertyValueModelAdapter.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPropertyValueModelAdapter.java | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPropertyValueModelAdapter.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPropertyValueModelAdapter.java deleted file mode 100644 index de238160c9..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/ListPropertyValueModelAdapter.java +++ /dev/null @@ -1,176 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008, 2012 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.value; - -import org.eclipse.jpt.common.utility.model.event.ListAddEvent; -import org.eclipse.jpt.common.utility.model.event.ListChangeEvent; -import org.eclipse.jpt.common.utility.model.event.ListClearEvent; -import org.eclipse.jpt.common.utility.model.event.ListMoveEvent; -import org.eclipse.jpt.common.utility.model.event.ListRemoveEvent; -import org.eclipse.jpt.common.utility.model.event.ListReplaceEvent; -import org.eclipse.jpt.common.utility.model.listener.ListChangeAdapter; -import org.eclipse.jpt.common.utility.model.listener.ListChangeListener; -import org.eclipse.jpt.common.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. - * <p> - * Subclasses must override:<ul> - * <li>{@link #buildValue()}<p> - * to return the current property value, as derived from the - * current list value - * </ul> - * Subclasses might want to override the following methods - * to improve performance (by not recalculating the value, if possible):<ul> - * <li>{@link #itemsAdded(ListAddEvent event)} - * <li>{@link #itemsRemoved(ListRemoveEvent event)} - * <li>{@link #itemsReplaced(ListReplaceEvent event)} - * <li>{@link #itemsMoved(ListMoveEvent event)} - * <li>{@link #listCleared(ListClearEvent event)} - * <li>{@link #listChanged(ListChangeEvent event)} - * </ul> - */ -public abstract class ListPropertyValueModelAdapter<T> - extends AbstractPropertyValueModelAdapter<T> -{ - /** The wrapped list value model. */ - protected final ListValueModel<?> listModel; - - /** A listener that allows us to sync with changes to the wrapped list model. */ - protected final ListChangeListener listListener; - - - // ********** constructor/initialization ********** - - /** - * Construct a property value model with the specified wrapped - * list value model. - */ - protected ListPropertyValueModelAdapter(ListValueModel<?> listModel) { - super(); - if (listModel == null) { - throw new NullPointerException(); - } - this.listModel = listModel; - this.listListener = this.buildListListener(); - } - - protected ListChangeListener buildListListener() { - return new ListListener(); - } - - protected class ListListener - extends ListChangeAdapter - { - @Override - public void itemsAdded(ListAddEvent event) { - ListPropertyValueModelAdapter.this.itemsAdded(event); - } - @Override - public void itemsRemoved(ListRemoveEvent event) { - ListPropertyValueModelAdapter.this.itemsRemoved(event); - } - @Override - public void itemsReplaced(ListReplaceEvent event) { - ListPropertyValueModelAdapter.this.itemsReplaced(event); - } - @Override - public void itemsMoved(ListMoveEvent event) { - ListPropertyValueModelAdapter.this.itemsMoved(event); - } - @Override - public void listCleared(ListClearEvent event) { - ListPropertyValueModelAdapter.this.listCleared(event); - } - @Override - public void listChanged(ListChangeEvent event) { - ListPropertyValueModelAdapter.this.listChanged(event); - } - } - - - // ********** listener ********** - - /** - * Start listening to the list holder. - */ - @Override - protected void engageModel_() { - this.listModel.addListChangeListener(ListValueModel.LIST_VALUES, this.listListener); - } - - /** - * Stop listening to the list holder. - */ - @Override - protected void disengageModel_() { - this.listModel.removeListChangeListener(ListValueModel.LIST_VALUES, this.listListener); - } - - - // ********** list change support ********** - - /** - * Items were added to the wrapped list holder; - * propagate the change notification appropriately. - */ - protected void itemsAdded(@SuppressWarnings("unused") ListAddEvent 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(@SuppressWarnings("unused") ListRemoveEvent 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(@SuppressWarnings("unused") ListReplaceEvent 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(@SuppressWarnings("unused") ListMoveEvent 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(@SuppressWarnings("unused") ListClearEvent 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(@SuppressWarnings("unused") ListChangeEvent event) { - // by default, simply recalculate the value and fire an event - this.propertyChanged(); - } -} |