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Spring Framework example source code file (FactoryMethods.java)

This example Spring Framework source code file (FactoryMethods.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

factorymethods, factorymethods, illegalstateexception, integer, list, should, should, string, string, testbean, testbean, util

The Spring Framework FactoryMethods.java source code

/*
 * Copyright 2002-2006 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.xml;

import java.util.Collections;
import java.util.List;

import org.springframework.beans.TestBean;

/**
 * Test class for Spring's ability to create objects using static
 * factory methods, rather than constructors.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
 */
public class FactoryMethods {
	
	public static FactoryMethods nullInstance() {
		return null;
	}

	public static FactoryMethods defaultInstance() {
		TestBean tb = new TestBean();
		tb.setName("defaultInstance");
		return new FactoryMethods(tb, "default", 0);
	}
	
	/**
	 * Note that overloaded methods are supported.
	 */
	public static FactoryMethods newInstance(TestBean tb) {
		return new FactoryMethods(tb, "default", 0);
	}
	
	protected static FactoryMethods newInstance(TestBean tb, int num, String name) {
		if (name == null) {
			throw new IllegalStateException("Should never be called with null value");
		}
		return new FactoryMethods(tb, name, num);
	}
	
	static FactoryMethods newInstance(TestBean tb, int num, Integer something) {
		if (something != null) {
			throw new IllegalStateException("Should never be called with non-null value");
		}
		return new FactoryMethods(tb, null, num);
	}

	private static List listInstance() {
		return Collections.EMPTY_LIST;
	}


	private int num = 0;
	private String name = "default";
	private TestBean tb;
	private String stringValue;


	/**
	 * Constructor is private: not for use outside this class,
	 * even by IoC container.
	 */
	private FactoryMethods(TestBean tb, String name, int num) {
		this.tb = tb;
		this.name = name;
		this.num = num;
	}
	
	public void setStringValue(String stringValue) {
		this.stringValue = stringValue;
	}
	
	public String getStringValue() {
		return this.stringValue;
	}
	
	public TestBean getTestBean() {
		return this.tb;
	}
	
	protected TestBean protectedGetTestBean() {
		return this.tb;
	}
	
	private TestBean privateGetTestBean() {
		return this.tb;
	}
	
	public int getNum() {
		return num;
	}
	
	public String getName() {
		return name;
	}
	
	/**
	 * Set via Setter Injection once instance is created.
	 */
	public void setName(String name) {
		this.name = name;
	}

}

Other Spring Framework examples (source code examples)

Here is a short list of links related to this Spring Framework FactoryMethods.java source code file:

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