| /* |
| * Copyright (c) 2004, 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 java.util.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| /** |
| This is JavaScript wrapper for Klass. |
| */ |
| public abstract class JSJavaKlass { |
| private static final int FIELD_SUPER_CLASS = 0; |
| private static final int FIELD_NAME = 1; |
| private static final int FIELD_IS_ARRAY_CLASS = 2; |
| private static final int FIELD_UNDEFINED = -1; |
| |
| public JSJavaKlass(Klass klass, JSJavaFactory factory) { |
| this.factory = factory; |
| this.klass = klass; |
| } |
| |
| public final Klass getKlass() { |
| return klass; |
| } |
| |
| public JSJavaClass getJSJavaClass() { |
| return (JSJavaClass) factory.newJSJavaObject(getKlass().getJavaMirror()); |
| } |
| |
| public Object getMetaClassFieldValue(String name) { |
| int fieldID = getFieldID(name); |
| switch (fieldID) { |
| case FIELD_SUPER_CLASS: { |
| JSJavaKlass jk = factory.newJSJavaKlass(getKlass().getSuper()); |
| return (jk != null) ? jk.getJSJavaClass() : null; |
| } |
| case FIELD_NAME: |
| return getName(); |
| case FIELD_IS_ARRAY_CLASS: |
| return Boolean.valueOf(isArray()); |
| case FIELD_UNDEFINED: |
| default: |
| return ScriptObject.UNDEFINED; |
| } |
| } |
| |
| public boolean hasMetaClassField(String name) { |
| return getFieldID(name) != FIELD_UNDEFINED; |
| } |
| |
| |
| public String[] getMetaClassFieldNames() { |
| String[] res = { "name", "superClass", "isArrayClass" }; |
| return res; |
| } |
| |
| public abstract String getName(); |
| public abstract boolean isArray(); |
| |
| //-- Internals only below this point |
| private static Map fields = new HashMap(); |
| private static void addField(String name, int fieldId) { |
| fields.put(name, new Integer(fieldId)); |
| } |
| |
| private static int getFieldID(String name) { |
| Integer res = (Integer) fields.get(name); |
| return (res != null)? res.intValue() : FIELD_UNDEFINED; |
| } |
| |
| static { |
| addField("base", FIELD_SUPER_CLASS); |
| addField("baseClass", FIELD_SUPER_CLASS); |
| addField("superClass", FIELD_SUPER_CLASS); |
| addField("name", FIELD_NAME); |
| addField("isArrayClass", FIELD_IS_ARRAY_CLASS); |
| } |
| |
| protected final JSJavaFactory factory; |
| private final Klass klass; |
| } |