| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.timelineservice.reader | Package org.apache.hadoop.yarn.server.timelineservice.reader contains classes
 which can be used across reader. | 
| org.apache.hadoop.yarn.server.timelineservice.storage | Package org.apache.hadoop.yarn.server.timelineservice.storage contains
 classes which define and implement reading and writing to backend storage. | 
| Class and Description | 
|---|
| TimelineDataToRetrieve Encapsulates information regarding which data to retrieve for each entity
 while querying. Data to retrieve contains the following : confsToRetrieve - Used for deciding which configs to return in response. | 
| TimelineEntityFilters Encapsulates information regarding the filters to apply while querying. | 
| TimelineEntityFilters.Builder A builder class to build an instance of TimelineEntityFilters. | 
| TimelineReaderContext Encapsulates fields necessary to make a query in timeline reader. | 
| Class and Description | 
|---|
| TimelineDataToRetrieve Encapsulates information regarding which data to retrieve for each entity
 while querying. Data to retrieve contains the following : confsToRetrieve - Used for deciding which configs to return in response. | 
| TimelineEntityFilters Encapsulates information regarding the filters to apply while querying. | 
| TimelineReaderContext Encapsulates fields necessary to make a query in timeline reader. | 
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