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comparison agent/src/share/classes/sun/jvm/hotspot/utilities/soql/InvocableCallable.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 */
23
24 package sun.jvm.hotspot.utilities.soql;
25
26 import javax.script.Invocable;
27 import javax.script.ScriptException;
28
29 /**
30 * This Callable implementation invokes a script
31 * function of given name when called. If the target
32 * object is non-null, script "method" is invoked, else
33 * a "global" script function is invoked.
34 */
35 public class InvocableCallable implements Callable {
36 private Object target;
37 private String name;
38 private Invocable invocable;
39
40 public InvocableCallable(Object target, String name,
41 Invocable invocable) {
42 this.target = target;
43 this.name = name;
44 this.invocable = invocable;
45 }
46
47 public Object call(Object[] args) throws ScriptException {
48 try {
49 if (target == null) {
50 return invocable.invokeFunction(name, args);
51 } else {
52 return invocable.invokeMethod(target, name, args);
53 }
54 } catch (NoSuchMethodException nme) {
55 throw new ScriptException(nme);
56 }
57 }
58 }