layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | |
|---|---|---|---|---|---|---|
| pattern | Data Mapper | data-mapper | /patterns/data-mapper/ | Architectural |
|
Intent
A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself
Class diagram
Applicability
Use the Data Mapper in any of the following situations
- when you want to decouple data objects from DB access layer
- when you want to write multiple data retrieval/persistence implementations