| Package | Description | 
|---|---|
| org.apache.hadoop.mapred.join | |
| org.apache.hadoop.mapreduce.lib.join | 
| Modifier and Type | Interface and Description | 
|---|---|
| interface  | ResetableIterator<T extends Writable>This defines an interface to a stateful Iterator that can replay elements
 added to it directly. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ArrayListBackedIterator<X extends Writable>This class provides an implementation of ResetableIterator. | 
| class  | StreamBackedIterator<X extends Writable>This class provides an implementation of ResetableIterator. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected abstract ResetableIterator<X> | CompositeRecordReader. getDelegate()Obtain an iterator over the child RRs apropos of the value type
 ultimately emitted from this join. | 
| protected ResetableIterator<V> | MultiFilterRecordReader. getDelegate()Return an iterator returning a single value from the tuple. | 
| protected ResetableIterator<TupleWritable> | JoinRecordReader. getDelegate()Return an iterator wrapping the JoinCollector. | 
Copyright © 2023 Apache Software Foundation. All rights reserved.