Source Code Cross Referenced for OgnlTool.java in  » J2EE » webwork-2.2.6 » com » opensymphony » webwork » views » jsp » ui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

01:        /*
02:         * Copyright (c) 2002-2003 by OpenSymphony
03:         * All rights reserved.
04:         */
05:        package com.opensymphony.webwork.views.jsp.ui;
06:
07:        import com.opensymphony.xwork.util.OgnlUtil;
08:        import ognl.Ognl;
09:        import ognl.OgnlException;
10:
11:        /**
12:         * @author Matt Ho <a href="mailto:matt@enginegreen.com">&lt;matt@enginegreen.com&gt;</a>
13:         * @version $Id: OgnlTool.java 1169 2005-09-02 05:14:35Z plightbo $
14:         */
15:        public class OgnlTool {
16:            private static OgnlTool instance = new OgnlTool();
17:
18:            private OgnlTool() {
19:            }
20:
21:            public static OgnlTool getInstance() {
22:                return instance;
23:            }
24:
25:            public Object findValue(String expr, Object context) {
26:                try {
27:                    return Ognl.getValue(OgnlUtil.compile(expr), context);
28:                } catch (OgnlException e) {
29:                    return null;
30:                }
31:            }
32:        }