org.apache.hadoop.mapred.join.ComposableRecordReader
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## Interface org.apache.hadoop.mapred.join.`ComposableRecordReader`

Removed interfaces `java.lang.Comparable>, org.apache.hadoop.mapred.RecordReader`.
Added interfaces `java.lang.Comparable, org.apache.hadoop.mapred.RecordReader`.

Changed Methods
`void` `accept`(`JoinCollector,` WritableComparable) | Change in signature from (`JoinCollector, K, extends, WritableComparable`) to (`JoinCollector, WritableComparable`). | While key-value pairs from this RecordReader match the given key register them with the JoinCollector provided.
`void` `skip`(`WritableComparable`) | Change in signature from (`K, extends, WritableComparable`) to `WritableComparable`. | Skip key-value pairs with keys less than or equal to the key provided.
`WritableComparable` `key`() | Change in return type from (`K, extends, WritableComparable`) to `WritableComparable`. | Return the key this RecordReader would supply on a call to next(K V)
`void` `key`(`WritableComparable`) | Change in signature from (`K, extends, WritableComparable`) to `WritableComparable`. | Clone the key at the head of this RecordReader into the object provided.

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