| layout | title | folder | permalink | categories | tags | ||
|---|---|---|---|---|---|---|---|
pattern |
Data Access Object |
dao |
/patterns/dao/ |
Persistence Tier |
|
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