diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/AbstractAssociation.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/AbstractAssociation.java | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/AbstractAssociation.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/AbstractAssociation.java deleted file mode 100644 index 744d95c727..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/AbstractAssociation.java +++ /dev/null @@ -1,69 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2008, 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; - -/** - * Implement some of the methods in {@link Association} that can - * be defined in terms of the other methods. - */ -public abstract class AbstractAssociation<K, V> - implements Association<K, V> -{ - /** - * Default constructor. - */ - protected AbstractAssociation() { - super(); - } - - @Override - public synchronized boolean equals(Object o) { - if ( ! (o instanceof Association<?, ?>)) { - return false; - } - Association<?, ?> other = (Association<?, ?>) o; - return this.keyEquals(other) && this.valueEquals(other); - } - - protected boolean keyEquals(Association<?, ?> other) { - Object key = this.getKey(); - return (key == null) ? - (other.getKey() == null) : - key.equals(other.getKey()); - } - - protected boolean valueEquals(Association<?, ?> other) { - Object value = this.getValue(); - return (value == null) ? - (other.getValue() == null) : - value.equals(other.getValue()); - } - - @Override - public synchronized int hashCode() { - return this.keyHashCode() ^ this.valueHashCode(); - } - - protected int keyHashCode() { - Object key = this.getKey(); - return (key == null) ? 0 : key.hashCode(); - } - - protected int valueHashCode() { - Object value = this.getValue(); - return (value == null) ? 0 : value.hashCode(); - } - - @Override - public synchronized String toString() { - return this.getKey() + " => " + this.getValue(); //$NON-NLS-1$ - } - -} |