ruleprovider.java

一个基于java工厂模式的 的实现

/*
 * RuleProvider.java
 *
 * Created on 2007年4月20日, 上午9:21
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.ebuy.businessfacade;

import com.ebuy.common.rule.IRule;
import com.ebuy.common.rule.IRuleFactory;
import com.ebuy.common.NameProvider;

/**
 *
 * @author Administrator
 */
public class RuleProvider
{
    private static IRuleFactory factory;
    static
    {
        try
        {
            factory=(IRuleFactory)(Class.forName("com.ebuy.businessrule.RuleFactory").newInstance());
        }
        catch (Exception ex)
        {
            ex.printStackTrace();
        }
    }
    static IRule getRuleInstance(NameProvider name)
    {
        return factory.getRuleInstance(name);
    }
    private RuleProvider()
    {
        
    }
}