## Uses of Interface
com.sleepycat.persist.EntityIndex

Packages that use EntityIndex
com.sleepycat.persist: The Direct Persistence Layer (DPL) adds a persistent object model to the Berkeley DB transactional engine.

### Uses of EntityIndex in com.sleepycat.persist

Classes in com.sleepycat.persist that implement EntityIndex
`class` `PrimaryIndex<PK,​E>` The primary index for an entity class and its primary key.
`class` `SecondaryIndex<SK,​PK,​E>` The secondary index for an entity class and a secondary key.

Methods in com.sleepycat.persist that return EntityIndex
`EntityIndex<SK,​PK>` SecondaryIndex.`keysIndex()` Returns a read-only keys index that maps secondary key to primary key.
`EntityIndex<PK,​E>` SecondaryIndex.`subIndex​(SK key)` Returns an index that maps primary key to entity for the subset of entities having a given secondary key (duplicates).