?? factory.java
字號:
package cn.register;
import cn.register.product.Product;
import cn.register.product.SqlProduct;
import cn.register.user.SqlUser;
import cn.register.user.User;
public abstract class Factory {
private static Factory factory = null;
public Factory(){}
public static Factory getInstance(){
if(factory == null){
try{
Class factoryClass = Class.forName("cn.register.SqlFactory");
factory = (Factory)factoryClass.newInstance();
}catch(Exception e){
e.printStackTrace();
}
}
return factory;
}
public abstract User initUser();
public abstract SqlUser initSqlUser();
public abstract Product initProduct();
public abstract SqlProduct initSqlProduct();
}
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