abstractfactory.java

这个是我做j2ee培训时候自己整理和编写的设计模式的学习例子

package org.hyq.factory.abstractfactory;

public abstract class AbstractFactory {
	private static String PRODUCT_NAME = "ProductA";

	public static AbstractFactory getInstance() {

		AbstractFactory af = null;
		try {
			af = (AbstractFactory) Thread.currentThread()
					.getContextClassLoader().loadClass(PRODUCT_NAME)
					.newInstance();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (InstantiationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return af;

	}

	public abstract Product createProduct();

	public static String getProductName() {
		return AbstractFactory.PRODUCT_NAME;
	}

	public static void setProductName(String pn) {
		AbstractFactory.PRODUCT_NAME = pn;
	}
}