| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.server.timelineservice.storage.common | Package org.apache.hadoop.yarn.server.timelineservice.storage.common contains
 a set of utility classes used across backend storage reader and writer. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AppIdKeyConverterEncodes and decodes  ApplicationIdfor row keys. | 
| class  | EventColumnNameConverterEncodes and decodes event column names for application and entity tables. | 
| class  | LongKeyConverterEncodes and decodes column names / row keys which are long. | 
| class  | StringKeyConverterEncodes and decodes column names / row keys which are merely strings. | 
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