/* * Copyright (c) 1998, 2017, 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 com.sun.jdi;
import com.sun.jdi.request.BreakpointRequest;
/** * A proxy used by a debugger to examine or manipulate some entity * in another virtual machine. Mirror is the root of the * interface hierarchy for this package. Mirrors can be proxies for objects * in the target VM ({@link ObjectReference}), primitive values * (for example, {@link IntegerValue}), types (for example, * {@link ReferenceType}), dynamic application state (for example, * {@link StackFrame}), and even debugger-specific constructs (for example, * {@link BreakpointRequest}). * The {@link VirtualMachine} itself is also considered a mirror, * representing the composite state of the target VM. * <P> * There is no guarantee that a particular entity in the target VM will map * to a single instance of Mirror. Implementors are free to decide * whether a single mirror will be used for some or all mirrors. Clients * of this interface should always use <code>equals</code> to compare * two mirrors for equality. * <p> * Any method on a {@link Mirror} that takes a <code>Mirror</code> as an * parameter directly or indirectly (e.g., as a element in a <code>List</code>) will * throw {@link VMMismatchException} if the mirrors are from different * virtual machines. * * @see VirtualMachine * * @author Robert Field * @author Gordon Hirsch * @author James McIlree * @since 1.3
*/ publicinterface Mirror {
/** * Gets the VirtualMachine to which this * Mirror belongs. A Mirror must be associated * with a VirtualMachine to have any meaning. * * @return the {@link VirtualMachine} for which this mirror is a proxy.
*/
VirtualMachine virtualMachine();
/** * Returns a String describing this mirror * * @return a string describing this mirror.
*/
String toString();
}
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