# Uses of Package
org.apache.olingo.odata2.api.ep.callback

- Packages that use org.apache.olingo.odata2.api.ep.callback
  Package | Description
  --- | ---
  org.apache.olingo.odata2.api.ep | Entity Provider The org.apache.olingo.odata2.api.ep package contains all classes related and necessary to provide an `EntityProvider`.
  org.apache.olingo.odata2.api.ep.callback | Entity Provider Callbacks These callbacks will be used to support the $expand query option.

- Classes in org.apache.olingo.odata2.api.ep.callback used by org.apache.olingo.odata2.api.ep
  Class and Description
  OnReadInlineContent Callback interface for the deep insert read calls (read of `` content).

- Classes in org.apache.olingo.odata2.api.ep.callback used by org.apache.olingo.odata2.api.ep.callback
  Class and Description
  ReadEntryResult A `ReadEntryResult` represents an inlined navigation property which points to an entry.
  ReadFeedResult A `ReadFeedResult` represents an inlined navigation property which points to a feed (in the form of a list of `ODataEntry` instances).
  ReadResult A `ReadResult` represents an inlined navigation property which points to an entry or feed.
  TombstoneCallbackResult Objects of this class are a container for the result of the `TombstoneCallback`.
  WriteCallbackContext Wrapper for `WriteEntryCallbackContext` and `WriteFeedCallbackContext`.
  WriteEntryCallbackContext Context given if the target of an expand is an entry.
  WriteEntryCallbackResult Result of a callback.
  WriteFeedCallbackContext Context given if the target of an expand is a feed.
  WriteFeedCallbackResult Result of a callback.

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