Data Source Architectural Patterns

最新推荐文章于 2025-08-16 23:45:53 发布

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原文链接：https://my.oschina.net/u/138995/blog/204505

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本文介绍了TableDataGateway数据源架构模式，这是一种用于访问数据库表的对象，处理所有表行操作，如选择、插入、更新和删除。该模式有助于将SQL与应用逻辑分离，便于数据库管理员进行调优。

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Data Source Architectural Patterns: Table Data Gateway (144), Row Data Gateway (152), Active Record (160), Data Mapper (165).

Table Data Gateway

An object that acts as a Gateway (466) to a database table. One instance handles all the rows in the table.

For a full description see P of EAA page 144

Mixing SQL in application logic can cause several problems. Many developers aren't comfortable with SQL, and many who are comfortable may not write it well. Database administrators need to be able to find SQL easily so they can figure out how to tune and evolve the database.

A Table Data Gateway holds all the SQL for accessing a single table or view: selects, inserts, updates, and deletes. Other code calls its methods for all interaction with the database.

转载于:https://my.oschina.net/u/138995/blog/204505