/*
 * Copyright (c) 2003, 2007, 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.
 *
 * 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.jvm.hotspot.utilities.soql;

import sun.jvm.hotspot.oops.*;

This is JavaScript wrapper for Java Instance in debuggee.
/** This is JavaScript wrapper for Java Instance in debuggee.*/
public class JSJavaInstance extends JSJavaObject { public JSJavaInstance(Instance instance, JSJavaFactory fac) { super(instance, fac); this.type = (JSJavaInstanceKlass) fac.newJSJavaKlass(instance.getKlass()); } public final Instance getInstance() { return (Instance) getOop(); } public final JSJavaClass getJSJavaClass() { return type.getJSJavaClass(); } public Object get(String name) { if (hasField(name)) { return getFieldValue(name); } else { return super.get(name); } } public Object[] getIds() { String[] fieldNames = getFieldNames(); Object[] superFields = super.getIds(); Object[] res = new Object[fieldNames.length + superFields.length]; System.arraycopy(fieldNames, 0, res, 0, fieldNames.length); System.arraycopy(superFields, 0, res, fieldNames.length, superFields.length); return res; } public boolean has(String name) { if (hasField(name)) { return true; } else { return super.has(name); } } public void put(String name, Object value) { if (! hasField(name)) { super.put(name, value); } } protected Object getFieldValue(String name) { try { return type.getInstanceFieldValue(name, getInstance()); } catch (NoSuchFieldException exp) { return UNDEFINED; } } protected String[] getFieldNames() { return type.getInstanceFieldNames(); } protected boolean hasField(String name) { return type.hasInstanceField(name); } protected final JSJavaInstanceKlass type; }