java-design-patterns/data-mapper/index.md

layout, title, folder, permalink, categories, tags

layout	title	folder	permalink	categories	tags
pattern	Data Mapper	data-mapper	/patterns/dm/	Persistence Tier	Java Difficulty-Beginner

Intent

A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself

Applicability

Use the Data Mapper in any of the following situations

• when you want to consolidate how the data layer is accessed
• when you want to avoid writing multiple data retrieval/persistence layers

Credits

• Data Mapper