Directory actions
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Directory actions
More options
Folders and files
| Name | Name | Last commit date | ||
|---|---|---|---|---|
parent directory.. | ||||
| layout | pattern | ||
|---|---|---|---|
| title | Data Mapper | ||
| folder | data-mapper | ||
| permalink | /patterns/data-mapper/ | ||
| categories | Persistence Tier | ||
| tags |
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A layer of mappers that moves data between objects and a database while keeping them independent of each other and the mapper itself
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