| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.timelineservice.storage.reader | Package org.apache.hadoop.yarn.server.timelineservice.storage.reader
 contains classes used to read entities from backend based on query type. | 
| Class and Description | 
|---|
| AbstractTimelineStorageReader The base class for reading timeline data from the HBase storage. | 
| AbstractTimelineStorageReader.FlowContext Encapsulates flow context information. | 
| EntityTypeReader Timeline entity reader for listing all available entity types given one
 reader context. | 
| TimelineEntityReader The base class for reading and deserializing timeline entities from the
 HBase storage. | 
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