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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/model/event/CollectionChangeEvent.java')
-rw-r--r--jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/model/event/CollectionChangeEvent.java138
1 files changed, 0 insertions, 138 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/model/event/CollectionChangeEvent.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/model/event/CollectionChangeEvent.java
deleted file mode 100644
index fbbad13412..0000000000
--- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/model/event/CollectionChangeEvent.java
+++ /dev/null
@@ -1,138 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2007, 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.model.event;
-
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Iterator;
-
-import org.eclipse.jpt.utility.model.Model;
-
-/**
- * A "collection change" event gets delivered whenever a model changes a "bound"
- * or "constrained" collection. A CollectionChangeEvent is sent as an
- * argument to the CollectionChangeListener.
- *
- * Normally a CollectionChangeEvent is accompanied by the collection name and
- * the items that were added to or removed from the changed collection.
- *
- * Design options:
- * - create a collection to wrap a single added or removed item
- * (this is the option we implemented below and in collaborating code)
- * since there is no way to optimize downstream code for
- * single items, we take another performance hit by building
- * a collection each time (@see Collections#singleton(Object))
- * and forcing downstream code to use an iterator every time
- *
- * - fire a separate event for each item added or removed
- * eliminates any potential for optimizations to downstream code
- *
- * - add protocol to support both single items and collections
- * adds conditional logic to downstream code
- *
- * Provisional API: This class is part of an interim API that is still
- * under development and expected to change significantly before reaching
- * stability. It is available at this early stage to solicit feedback from
- * pioneering adopters on the understanding that any code that uses this API
- * will almost certainly be broken (repeatedly) as the API evolves.
- */
-public class CollectionChangeEvent extends ChangeEvent {
-
- /** Name of the collection that changed. */
- private final String collectionName;
-
- /** The items that were added to or removed from the collection. May be empty, if not known. */
- private final Collection<?> items;
-
- private static final long serialVersionUID = 1L;
-
-
- // ********** constructors **********
-
- /**
- * Construct a new collection change event.
- *
- * @param source The object on which the event initially occurred.
- * @param collectionName The programmatic name of the collection that was changed.
- * @param items The items that were added to or removed from the collection.
- */
- public CollectionChangeEvent(Model source, String collectionName, Collection<?> items) {
- super(source);
- if ((collectionName == null) || (items == null)) {
- throw new NullPointerException();
- }
- this.collectionName = collectionName;
- this.items = Collections.unmodifiableCollection(items);
- }
-
- /**
- * Construct a new collection change event.
- *
- * @param source The object on which the event initially occurred.
- * @param collectionName The programmatic name of the collection that was changed.
- */
- public CollectionChangeEvent(Model source, String collectionName) {
- this(source, collectionName, Collections.emptySet());
- }
-
-
- // ********** standard state **********
-
- /**
- * Return the programmatic name of the collection that was changed.
- */
- public String getCollectionName() {
- return this.collectionName;
- }
-
- @Override
- public String getAspectName() {
- return this.collectionName;
- }
-
- /**
- * Return an iterator on the items that were added to or
- * removed from the collection.
- * May be empty if inappropriate or unknown.
- */
- public Iterator<?> items() {
- return this.items.iterator();
- }
-
- /**
- * Return the number of items that were added to or
- * removed from the collection.
- * May be 0 if inappropriate or unknown.
- */
- public int itemsSize() {
- return this.items.size();
- }
-
-
- // ********** cloning **********
-
- /**
- * Return a copy of the event with the specified source
- * replacing the current source.
- */
- @Override
- public CollectionChangeEvent cloneWithSource(Model newSource) {
- return new CollectionChangeEvent(newSource, this.collectionName, this.items);
- }
-
- /**
- * Return a copy of the event with the specified source and collection name
- * replacing the current source and collection name.
- */
- public CollectionChangeEvent cloneWithSource(Model newSource, String newCollectionName) {
- return new CollectionChangeEvent(newSource, newCollectionName, this.items);
- }
-
-}

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