/******************************************************************************* * Copyright (c) 2012 IBM Corporation. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * and Eclipse Distribution License v. 1.0 which accompanies this distribution. * * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * http://www.eclipse.org/org/documents/edl-v10.php. * * Contributors: * * IBM Corporation - initial API and implementation *******************************************************************************/ package org.eclipse.lyo.server.oauth.core.token; import java.util.LinkedHashMap; import java.util.Map; /** * Least recently used cache for storing OAuth tokens. * * @author Samuel Padgett <spadgett@us.ibm.com> */ public class LRUCache<K, V> extends LinkedHashMap<K, V> { private static final long serialVersionUID = -3846345693980360667L; private final int max; public LRUCache(final int max) { this.max = max; } @Override protected boolean removeEldestEntry(final Map.Entry<K, V> eldest) { return super.size() > max; } }