net.admin4j.deps.commons.collections.Closure Maven / Gradle / Ivy
/*
* Copyright 2001-2004 The Apache Software Foundation
*
* 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,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.admin4j.deps.commons.collections;
/**
* Defines a functor interface implemented by classes that do something.
*
* A Closure represents a block of code which is executed from
* inside some block, function or iteration. It operates an input object.
*
* Standard implementations of common closures are provided by
* {@link ClosureUtils}. These include method invokation and for/while loops.
*
* @since Commons Collections 1.0
* @version $Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $
*
* @author James Strachan
* @author Nicola Ken Barozzi
* @author Stephen Colebourne
*/
public interface Closure {
/**
* Performs an action on the specified input object.
*
* @param input the input to execute on
* @throws ClassCastException (runtime) if the input is the wrong class
* @throws IllegalArgumentException (runtime) if the input is invalid
* @throws FunctorException (runtime) if any other error occurs
*/
public void execute(Object input);
}