1/*
2 * Copyright (c) 2004, 2007, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25package sun.jvm.hotspot.utilities.soql;
26
27import sun.jvm.hotspot.oops.*;
28
29/**
30 * Wraps a java.lang.String instance of the target VM.
31 */
32public class JSJavaString extends JSJavaInstance {
33    public JSJavaString(Instance instance, JSJavaFactory fac) {
34        super(instance, fac);
35    }
36
37    public String toString() {
38        StringBuffer buf = new StringBuffer();
39        buf.append("String (address=");
40        buf.append(getOop().getHandle());
41        buf.append(", value=");
42        buf.append("'");
43        buf.append(getString());
44        buf.append('\'');
45        buf.append(')');
46        return buf.toString();
47    }
48
49    protected Object getFieldValue(String name) {
50        if (name.equals("stringValue")) {
51            return getString();
52        } else {
53            return super.getFieldValue(name);
54        }
55    }
56
57    protected String[] getFieldNames() {
58        String[] fields = super.getFieldNames();
59        String[] res = new String[fields.length + 1];
60        System.arraycopy(fields, 0, res, 0, fields.length);
61        res[fields.length] = "stringValue";
62        return res;
63    }
64
65    protected boolean hasField(String name) {
66        if (name.equals("stringValue")) {
67            return true;
68        } else {
69            return super.hasField(name);
70        }
71    }
72
73    //-- Internals only below this point
74    private String getString() {
75        return OopUtilities.stringOopToString(getOop());
76    }
77}
78