/* * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.management.counter; /** * The base class for a performance counter. * * @author   Brian Doherty */public interface Counter extends java.io.Serializable {     /**     * Returns the name of this performance counter     */    public String getName();     /**     * Returns the Units for this performance counter     */    public Units getUnits();     /**     * Returns the Variability for this performance counter     */    public Variability getVariability();     /**     * Returns true if this performance counter is a vector     */    public boolean isVector();     /**     * Returns the length of the vector     */    public int getVectorLength();     /**     * Returns an Object that encapsulates the data value of this counter     */    public Object getValue();     /**     * Returns <tt>true</tt> if this counter is an internal counter.     */    public boolean isInternal();     /**     * Return the flags associated with the counter.     */    public int getFlags();}