| layout | pattern | ||
|---|---|---|---|
| title | Data Access Object | ||
| folder | dao | ||
| permalink | /patterns/dao/ | ||
| categories | Persistence Tier | ||
| tags |
|
Object provides an abstract interface to some type of database or other persistence mechanism.
Use the Data Access Object 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