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Groovy example source code file (

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

Java - Groovy tags/keywords

cachedclass, class, class, closure, closure, closureinvokingmethod, closurestaticmetamethod, closurestaticmetamethod, metamethod, object, object, reflection, string

The Groovy 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
 * 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 groovy.lang.Closure;
import groovy.lang.ClosureInvokingMethod;
import groovy.lang.MetaMethod;
import org.codehaus.groovy.reflection.CachedClass;
import org.codehaus.groovy.reflection.ReflectionCache;

import java.lang.reflect.Modifier;

 * This class represents a MetaMethod that is a closure that pretends to be a static method.
 * It is used by ExpandoMetaClass to allow addition of static methods defined as closures
 * @author Graeme Rocher
 * @since 01.1
public class ClosureStaticMetaMethod extends MetaMethod implements ClosureInvokingMethod {

    private final Closure callable;
    private final CachedClass declaringClass;
    private final String name;

     * @param name The name of the MetaMethod
     * @param declaringClass The class which declared the MetaMethod
     * @param c The closure that this ClosureMetaMethod will invoke when called
    public ClosureStaticMetaMethod(String name, Class declaringClass, Closure c) {
        this(name, declaringClass, c, c.getParameterTypes());

    public ClosureStaticMetaMethod(String name, Class declaringClass, Closure c, Class[] paramTypes) {
        this.callable = c;
        this.declaringClass = ReflectionCache.getCachedClass(declaringClass); = name;
    public Object invoke(Object object, Object[] arguments) {
        Closure cloned = (Closure) callable.clone();

    public int getModifiers() {
        return Modifier.PUBLIC | Modifier.STATIC;

    public String getName() {
        return name;

    public Class getReturnType() {
        return Object.class;

    public CachedClass getDeclaringClass() {
        return this.declaringClass;

     * Retrieves the closure that is invoked by this MetaMethod
     * @return The closure
    public Closure getClosure() {
        return this.callable;

Other Groovy examples (source code examples)

Here is a short list of links related to this Groovy source code file:

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