alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

ActiveMQ example source code file (ContainerEntrySet.java)

This example ActiveMQ source code file (ContainerEntrySet.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 - ActiveMQ tags/keywords

arraylist, cannot, containerentryset, containerentrysetiterator, containermapentry, containermapentry, iterator, iterator, list, object, object, set, set, unsupportedoperationexception, util

The ActiveMQ ContainerEntrySet.java source code

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.activemq.kaha.impl.container;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
 * Set of Map.Entry objects for a container
 * 
 * 
 */
public class ContainerEntrySet extends ContainerCollectionSupport implements Set {
    ContainerEntrySet(MapContainerImpl container) {
        super(container);
    }

    public boolean contains(Object o) {
        return container.entrySet().contains(o);
    }

    public Iterator iterator() {
        return new ContainerEntrySetIterator(container, buildEntrySet().iterator());
    }

    public Object[] toArray() {
        return buildEntrySet().toArray();
    }

    public Object[] toArray(Object[] a) {
        return buildEntrySet().toArray(a);
    }

    public boolean add(Object o) {
        throw new UnsupportedOperationException("Cannot add here");
    }

    public boolean remove(Object o) {
        boolean result = false;
        if (buildEntrySet().remove(o)) {
            ContainerMapEntry entry = (ContainerMapEntry)o;
            container.remove(entry.getKey());
        }
        return result;
    }

    public boolean containsAll(Collection c) {
        return buildEntrySet().containsAll(c);
    }

    public boolean addAll(Collection c) {
        throw new UnsupportedOperationException("Cannot add here");
    }

    public boolean retainAll(Collection c) {
        List<Object> tmpList = new ArrayList();
        for (Iterator i = c.iterator(); i.hasNext();) {
            Object o = i.next();
            if (!contains(o)) {
                tmpList.add(o);
            }
        }
        boolean result = false;
        for (Iterator<Object> i = tmpList.iterator(); i.hasNext();) {
            result |= remove(i.next());
        }
        return result;
    }

    public boolean removeAll(Collection c) {
        boolean result = true;
        for (Iterator i = c.iterator(); i.hasNext();) {
            if (!remove(i.next())) {
                result = false;
            }
        }
        return result;
    }

    public void clear() {
        container.clear();
    }

    protected Set<ContainerMapEntry> buildEntrySet() {
        Set<ContainerMapEntry> set = new HashSet();
        for (Iterator i = container.keySet().iterator(); i.hasNext();) {
            ContainerMapEntry entry = new ContainerMapEntry(container, i.next());
            set.add(entry);
        }
        return set;
    }
}

Other ActiveMQ examples (source code examples)

Here is a short list of links related to this ActiveMQ ContainerEntrySet.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.