/* * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.lang.management; /** * Types of {@link MemoryPoolMXBean memory pools}. * * @author Mandy Chung * @since 1.5 */ public enum MemoryType { /** * Heap memory type. * <p> * The Java virtual machine has a <i>heap</i> * that is the runtime data area from which * memory for all class instances and arrays are allocated. */ HEAP("Heap memory"), /** * Non-heap memory type. * <p> * The Java virtual machine manages memory other than the heap * (referred as <i>non-heap memory</i>). The non-heap memory includes * the <i>method area</i> and memory required for the internal * processing or optimization for the Java virtual machine. * It stores per-class structures such as a runtime * constant pool, field and method data, and the code for * methods and constructors. */ NON_HEAP("Non-heap memory"); private final String description; private MemoryType(String s) { this.description = s; } /** * Returns the string representation of this <tt>MemoryType</tt>. * @return the string representation of this <tt>MemoryType</tt>. */ public String toString() { return description; } private static final long serialVersionUID = 6992337162326171013L; }