layout, title, folder, permalink, pumlid, categories, tags
| layout | title | folder | permalink | pumlid | categories | tags | ||
|---|---|---|---|---|---|---|---|---|
| pattern | Data Mapper | data-mapper | /patterns/data-mapper/ | JShB3OGm303HLg20nFVjnYGM1CN6ycTfVtFSsnjfzY5jPgUqkLqHwXy0mxUU8wuyqidQ8q4IjJqCO-QBWGOtVh5qyd5AKOmW4mT6Nu2-ZiAekapH_hkcSTNa-GC0 | Persistence Tier |
|
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 decouple data objects from DB access layer
- when you want to write multiple data retrieval/persistence implementations