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Groovy example source code file (Janitor.java)

This example Groovy source code file (Janitor.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

all, exception, exception, hascleanup, hascleanup, hashset, iterator, iterator, janitor, janitor, set, util

The Groovy Janitor.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.control;

import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

 *  An agent that can be used to defer cleanup operations to 
 *  a later time.  Users much implement the HasCleanup interface.  
 *  @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier
 *  @version $Id: Janitor.java 10493 2008-01-19 10:23:02Z russel $

public class Janitor implements HasCleanup
    private final Set pending = new HashSet();   // All objects pending cleanup
    public void register( HasCleanup object )
        pending.add( object );
    public void cleanup()
        Iterator iterator = pending.iterator();
        while( iterator.hasNext() )
            HasCleanup object = (HasCleanup)iterator.next();
            try { object.cleanup(); } catch( Exception e ) {
                // Ignore

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