KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > codehaus > groovy > runtime > TemporaryMethodKey


1 /*
2  * $Id: TemporaryMethodKey.java,v 1.3 2004/07/10 03:31:42 bran Exp $
3  *
4  * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
5  *
6  * Redistribution and use of this software and associated documentation
7  * ("Software"), with or without modification, are permitted provided that the
8  * following conditions are met:
9  * 1. Redistributions of source code must retain copyright statements and
10  * notices. Redistributions must also contain a copy of this document.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  * 3. The name "groovy" must not be used to endorse or promote products
15  * derived from this Software without prior written permission of The Codehaus.
16  * For written permission, please contact info@codehaus.org.
17  * 4. Products derived from this Software may not be called "groovy" nor may
18  * "groovy" appear in their names without prior written permission of The
19  * Codehaus. "groovy" is a registered trademark of The Codehaus.
20  * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
23  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25  * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
32  * DAMAGE.
33  *
34  */
35 package org.codehaus.groovy.runtime;
36
37 import groovy.lang.MetaClass;
38
39 /**
40  * A temporary implementation of MethodKey used to perform a fast lookup
41  * for a method using a set of arguments to a method
42  *
43  * @author <a HREF="mailto:james@coredevelopers.net">James Strachan</a>
44  * @version $Revision: 1.3 $
45  */
46 public class TemporaryMethodKey extends MethodKey {
47
48     private Object JavaDoc[] parameterValues;
49
50     public TemporaryMethodKey(String JavaDoc name, Object JavaDoc[] parameterValues) {
51         super(name);
52         if (parameterValues == null) {
53             parameterValues = MetaClass.EMPTY_ARRAY;
54         }
55         this.parameterValues = parameterValues;
56     }
57
58     public int getParameterCount() {
59         return parameterValues.length;
60     }
61
62     public Class JavaDoc getParameterType(int index) {
63         Object JavaDoc value = parameterValues[index];
64
65         if (value != null ) {
66             Class JavaDoc type = (Class JavaDoc)((value.getClass() == java.lang.Class JavaDoc.class) ?
67                     value :
68                     value.getClass());
69             return type;
70         }
71
72         return Object JavaDoc.class;
73     }
74 }
75
Popular Tags