001 /*
002 * $Id: TemporaryMethodKey.java,v 1.3 2004/07/10 03:31:42 bran Exp $
003 *
004 * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005 *
006 * Redistribution and use of this software and associated documentation
007 * ("Software"), with or without modification, are permitted provided that the
008 * following conditions are met:
009 * 1. Redistributions of source code must retain copyright statements and
010 * notices. Redistributions must also contain a copy of this document.
011 * 2. Redistributions in binary form must reproduce the above copyright
012 * notice, this list of conditions and the following disclaimer in the
013 * documentation and/or other materials provided with the distribution.
014 * 3. The name "groovy" must not be used to endorse or promote products
015 * derived from this Software without prior written permission of The Codehaus.
016 * For written permission, please contact info@codehaus.org.
017 * 4. Products derived from this Software may not be called "groovy" nor may
018 * "groovy" appear in their names without prior written permission of The
019 * Codehaus. "groovy" is a registered trademark of The Codehaus.
020 * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
021 *
022 * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
023 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
024 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
025 * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
026 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
028 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
032 * DAMAGE.
033 *
034 */
035 package org.codehaus.groovy.runtime;
036
037 import groovy.lang.MetaClass;
038
039 /**
040 * A temporary implementation of MethodKey used to perform a fast lookup
041 * for a method using a set of arguments to a method
042 *
043 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
044 * @version $Revision: 1.3 $
045 */
046 public class TemporaryMethodKey extends MethodKey {
047
048 private Object[] parameterValues;
049
050 public TemporaryMethodKey(String name, Object[] parameterValues) {
051 super(name);
052 if (parameterValues == null) {
053 parameterValues = MetaClass.EMPTY_ARRAY;
054 }
055 this.parameterValues = parameterValues;
056 }
057
058 public int getParameterCount() {
059 return parameterValues.length;
060 }
061
062 public Class getParameterType(int index) {
063 Object value = parameterValues[index];
064
065 if (value != null ) {
066 Class type = (Class)((value.getClass() == java.lang.Class.class) ?
067 value :
068 value.getClass());
069 return type;
070 }
071
072 return Object.class;
073 }
074 }