Spring Framework example source code file (SimpleMapScope.java)

This example Spring Framework source code file (SimpleMapScope.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 - Spring Framework tags/keywords

io, iterator, list, map, map, object, object, objectfactory, runnable, runnable, scope, serializable, simplemapscope, simplemapscope, string, util

The Spring Framework SimpleMapScope.java source code

/*
 * Copyright 2002-2007 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,
 * 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.springframework.beans.factory.config;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.ObjectFactory;

/**
 * @author Juergen Hoeller
 */
public class SimpleMapScope implements Scope, Serializable {

	private final Map map = new HashMap();

	private final List callbacks = new LinkedList();


	public SimpleMapScope() {
	}

	public final Map getMap() {
		return this.map;
	}


	public Object get(String name, ObjectFactory objectFactory) {
		synchronized (this.map) {
			Object scopedObject = this.map.get(name);
			if (scopedObject == null) {
				scopedObject = objectFactory.getObject();
				this.map.put(name, scopedObject);
			}
			return scopedObject;
		}
	}

	public Object remove(String name) {
		synchronized (this.map) {
			return this.map.remove(name);
		}
	}

	public void registerDestructionCallback(String name, Runnable callback) {
		this.callbacks.add(callback);
	}

	public void close() {
		for (Iterator it = this.callbacks.iterator(); it.hasNext();) {
			Runnable runnable = (Runnable) it.next();
			runnable.run();
		}
	}

	public String getConversationId() {
		return null;
	}

}