June 2022
Beginner to intermediate
672 pages
17h 23m
Japanese
Content preview from Head Firstデザインパターン 第2版 ―頭とからだで覚えるデザインパターンの基本
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301
8
章
Template Method
パターン
実際のテンプレートメソッド
Template Method
パターンはとても一般的なパターンです。
実際にこのパターンを見かけることも多いでしょう。しかし、
このパターンの教科書どおりの設計とは異なるテンプレート
メソッドの実装も多数あるため、このパターンには鋭い観察
眼が必要です。
このパターンをよく見かけるのは、フレームワークが処理
の実行方法を制御しつつも、フレームワークを使う人がアル
ゴリズムの各手順で実際に発生する処理の独自の詳細を指定
できるようなフレームワークを作成する、優れた設計ツール
であるからです。
実際の場面での（
Java API
における）いくつかの使用例を少
し探検してみましょう。
訓練では古典的なパターンを勉強する。だが、実世界
に出ると、状況からどのパターンが必要かを選択する技
を身に付ける必要がある。また、実世界では四角い穴が
必ずしも本当に四角であるとは限らないので、パターン
のバリエーションも選択できるようならなければいけない。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.