StrategyパターンによるTemplate Methodパターンの書き換え

gistfile1.java

// ■Template Method Pattern
public abstract class Template {

    public final void templateMethod() {
        ...
        method1();
        ...
        method2();
        ...
        method3();
        ...
    }

    protected void method1();
    protected void method2();
    protected void method3();
}

public class Concrete1 extends Template {
    @Override
    protected void method1() {
        ...
    }
    @Override
    protected void method2() {
        ...
    }
    @Override
    protected void method3() {
        ...
    }
}


// ■Strategy Pattern
public interface Strategy {
    void method1();
    void method2();
    void method3();
}

public class Client {
    public void templateMethod(final Strategy strategy) {
        ...
        strategy.method1();
        ...
        strategy.method2();
        ...
        strategy.method3();
        ...
    }
}

public class ConcreteStrategy implements Strategy {
    public void method1() {
        ...
    }
    public void method2() {
        ...
    }
    public void method3() {
        ...
    }
}