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Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/SimpleObjectReference.java')
-rw-r--r--common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/SimpleObjectReference.java98
1 files changed, 0 insertions, 98 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/SimpleObjectReference.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/SimpleObjectReference.java
deleted file mode 100644
index 5134aa98a3..0000000000
--- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/SimpleObjectReference.java
+++ /dev/null
@@ -1,98 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2009, 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;
-
-import java.io.Serializable;
-import org.eclipse.jpt.common.utility.ObjectReference;
-
-/**
- * Provide a container for passing an object that can be changed by the recipient.
- *
- * @see SynchronizedObject
- */
-public class SimpleObjectReference<V>
- implements ObjectReference<V>, Cloneable, Serializable
-{
- /** Backing value. */
- private volatile V value;
-
- private static final long serialVersionUID = 1L;
-
-
- // ********** constructors **********
-
- /**
- * Create an object reference with the specified initial value.
- */
- public SimpleObjectReference(V value) {
- super();
- this.value = value;
- }
-
- /**
- * Create an object reference with an initial value of
- * <code>null</code>.
- */
- public SimpleObjectReference() {
- this(null);
- }
-
-
- // ********** value **********
-
- public V getValue() {
- return this.value;
- }
-
- public boolean valueEquals(Object object) {
- return Tools.valuesAreEqual(this.value, object);
- }
-
- public boolean valueNotEqual(Object object) {
- return Tools.valuesAreDifferent(this.value, object);
- }
-
- public boolean isNull() {
- return this.value == null;
- }
-
- public boolean isNotNull() {
- return this.value != null;
- }
-
- public V setValue(V value) {
- V old = this.value;
- this.value = value;
- return old;
- }
-
- public V setNull() {
- return this.setValue(null);
- }
-
-
- // ********** standard methods **********
-
- @Override
- public SimpleObjectReference<V> clone() {
- try {
- @SuppressWarnings("unchecked")
- SimpleObjectReference<V> clone = (SimpleObjectReference<V>) super.clone();
- return clone;
- } catch (CloneNotSupportedException ex) {
- throw new InternalError();
- }
- }
-
- @Override
- public String toString() {
- return '[' + String.valueOf(this.value) + ']';
- }
-}

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