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Groovy example source code file (TemporaryMethodKey.java)

This example Groovy source code file (TemporaryMethodKey.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

class, class, methodkey, methodkey, object, object, string, temporarymethodkey, temporarymethodkey

The Groovy TemporaryMethodKey.java source code

 * Copyright 2003-2007 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.codehaus.groovy.runtime.metaclass;

import org.codehaus.groovy.runtime.MethodKey;
import org.codehaus.groovy.runtime.MetaClassHelper;

 * A temporary implementation of MethodKey used to perform a fast lookup
 * for a method using a set of arguments to a method
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 7922 $
public class TemporaryMethodKey extends MethodKey {

    private final Object[] parameterValues;

    public TemporaryMethodKey(Class sender, String name, Object[] parameterValues, boolean isCallToSuper) {
        super(sender, name, isCallToSuper);
        if (parameterValues == null) {
            parameterValues = MetaClassHelper.EMPTY_ARRAY;
        this.parameterValues = parameterValues;

    public int getParameterCount() {
        return parameterValues.length;

    public Class getParameterType(int index) {
        Object value = parameterValues[index];

        if (value != null ) {
            Class type = (Class)((value.getClass() == java.lang.Class.class) ?
                    value :
            return type;

        return Object.class;

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