namefactory.java

来自「源码为科学出版社出版的英文<java设计模式>(影印版)所用的所有例」· Java 代码 · 共 15 行

public class NameFactory {
    Namer namer;
//Factory decides which class to return based on
    //presence of a comma
    public Namer getNamer(String entry) {
        //comma determines name order
        int i = entry.indexOf(",");   
        if (i > 0)
            return new LastFirst(entry);
        else
            return new FirstFirst(entry);
    }
}