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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/Bag.java')
| -rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/Bag.java | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/Bag.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/Bag.java deleted file mode 100644 index 2c68536c51..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/Bag.java +++ /dev/null @@ -1,49 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2005, 2007 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; - -/** - * A collection that allows duplicate elements. - * <p> - * The <code>Bag</code> interface places additional stipulations, - * beyond those inherited from the <code>java.util.Collection</code> interface, - * on the contracts of the <code>equals</code> and <code>hashCode</code> methods. - * - * @version 1.00 Jan-2002 - * @see java.util.Collection - * @see HashBag - */ - -public interface Bag<E> extends java.util.Collection<E> { - - /** - * Compares the specified object with this bag for equality. Returns - * <code>true</code> if the specified object is also a bag, the two bags - * have the same size, and every member of the specified bag is - * contained in this bag with the same number of occurrences (or equivalently, - * every member of this bag is contained in the specified bag with the same - * number of occurrences). This definition ensures that the - * equals method works properly across different implementations of the - * bag interface. - */ - boolean equals(Object o); - - /** - * Returns the hash code value for this bag. The hash code of a bag is - * defined to be the sum of the hash codes of the elements in the bag, - * where the hashcode of a <code>null</code> element is defined to be zero. - * This ensures that <code>b1.equals(b2)</code> implies that - * <code>b1.hashCode() == b2.hashCode()</code> for any two bags - * <code>b1</code> and <code>b2</code>, as required by the general - * contract of the <code>Object.hashCode</code> method. - */ - int hashCode(); - -} |