# Package com.google.appengine.api.datastore.dev

- Interface Summary
  Interface | Description
  --- | ---
  HighRepJobPolicy | A policy for high replication job application.

- Class Summary
  Class | Description
  --- | ---
  CreationCostAnalysis | Data object that describes the cost of creating an `Entity`.
  DefaultHighRepJobPolicy | An implementation of `HighRepJobPolicy` in which a user-defined percentage of jobs do not apply.
  LocalDatastoreCostAnalysis | Utility class that can calculate the cost of writing (put or delete) a given `Entity`.
  LocalDatastoreService | A local implementation of the Datastore service interface.
  WriteLatencyAdjuster | `DynamicLatencyAdjuster` that adds the paxos penalty for writes and takes the fact that transactional puts and deletes are super-fast into account.