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Java > Open Source Codes > org > apache > commons > jexl > util > Introspector


1 /*
2  * Copyright 2002,2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.jexl.util;
17
18 import org.apache.commons.jexl.util.introspection.Uberspect;
19 import org.apache.commons.jexl.util.introspection.UberspectImpl;
20 import org.apache.commons.jexl.util.introspection.UberspectLoggable;
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23
24 /**
25  * Little class to manage a Velocity uberspector (Vel 1.4+) for instrospective
26  * services.
27  *
28  * @since 1.0
29  * @author <a HREF="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
30  * @version $Id: Introspector.java 398171 2006-04-29 14:57:29Z dion $
31  */
32 public class Introspector {
33     /**
34      * The uberspector from Velocity that handles all instrospection patterns.
35      */
36     private static Uberspect uberSpect;
37
38     static {
39
40         Log logger = LogFactory.getLog(Introspector.class);
41
42         uberSpect = new UberspectImpl();
43         ((UberspectLoggable) uberSpect).setRuntimeLogger(logger);
44     }
45
46     /**
47      * For now, expose the raw uberspector to the AST.
48      *
49      * @return Uberspect The Velocity uberspector.
50      */
51     public static Uberspect getUberspect() {
52         return uberSpect;
53     }
54 }
55
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