| /******************************************************************************* |
| * Copyright (c) 2000, 2012 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.osgi.framework.util; |
| |
| /** |
| * An element of an <code>KeyedHashSet</code>. A KeyedElement privides the key which is used to hash |
| * the elements in an <code>KeyedHashSet</code>. |
| * @see KeyedHashSet |
| * @since 3.2 |
| */ |
| // This class was moved from /org.eclipse.osgi/core/framework/org/eclipse/osgi/framework/internal/core/KeyedElement.java |
| public interface KeyedElement { |
| /** |
| * Returns the hash code of the key |
| * @return the hash code of the key |
| */ |
| public int getKeyHashCode(); |
| |
| /** |
| * Compares this element with a specified element |
| * @param other the element to compare with |
| * @return returns true if the specified element equals this element |
| */ |
| public boolean compare(KeyedElement other); |
| |
| /** |
| * Returns the key for this element |
| * @return the key for this element |
| */ |
| public Object getKey(); |
| } |
