org.apache.hadoop.mapred.join.WrappedRecordReader
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## Class org.apache.hadoop.mapred.join.`WrappedRecordReader`

Removed interface `org.apache.hadoop.mapred.join.ComposableRecordReader`.
Added interface `org.apache.hadoop.mapred.join.ComposableRecordReader`.

Changed Methods
`void` `accept`(`JoinCollector,` WritableComparable) | Change in signature from (`JoinCollector, K, extends, WritableComparable`) to (`JoinCollector, WritableComparable`). | Add an iterator to the collector at the position occupied by this RecordReader over the values in this stream paired with the key provided (ie register a stream of values from this source matching K with a collector).
`int` `compareTo`(`ComposableRecordReader`) | Change in signature from (`ComposableRecordReader`) to `ComposableRecordReader`. | Implement Comparable contract (compare key at head of proxied RR with that of another).
`WritableComparable` `createKey`() | Change in return type from (`K, extends, WritableComparable`) to `WritableComparable`. | Request new key from proxied RR.
`Writable` `createValue`() | Change in return type from (`U, extends, Writable`) to `Writable`. | Request new value from proxied RR.
`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 at the head of this RR.
`void` `key`(`WritableComparable`) | Change in signature from (`K, extends, WritableComparable`) to `WritableComparable`. | Clone the key at the head of this RR into the object supplied.
`boolean` `next`(`WritableComparable,` Writable) | Change in signature from (`K, extends, WritableComparable, U, extends, Writable`) to (`WritableComparable, Writable`). | Write key-value pair at the head of this stream to the objects provided; get next key-value pair from proxied RR.

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