protected class MapTask.MapOutputBuffer.MRResultIterator extends Object implements RawKeyValueIterator
| Constructor and Description |
|---|
MapTask.MapOutputBuffer.MRResultIterator(int start,
int end) |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Closes the iterator so that the underlying streams can be closed.
|
org.apache.hadoop.io.DataInputBuffer |
getKey()
Gets the current raw key.
|
org.apache.hadoop.util.Progress |
getProgress()
Gets the Progress object; this has a float (0.0 - 1.0)
indicating the bytes processed by the iterator so far
|
org.apache.hadoop.io.DataInputBuffer |
getValue()
Gets the current raw value.
|
boolean |
next()
Sets up the current key and value (for getKey and getValue).
|
public MapTask.MapOutputBuffer.MRResultIterator(int start,
int end)
public boolean next()
throws IOException
RawKeyValueIteratornext in interface RawKeyValueIteratortrue if there exists a key/value,
false otherwise.IOExceptionpublic org.apache.hadoop.io.DataInputBuffer getKey()
throws IOException
RawKeyValueIteratorgetKey in interface RawKeyValueIteratorIOExceptionpublic org.apache.hadoop.io.DataInputBuffer getValue()
throws IOException
RawKeyValueIteratorgetValue in interface RawKeyValueIteratorIOExceptionpublic org.apache.hadoop.util.Progress getProgress()
RawKeyValueIteratorgetProgress in interface RawKeyValueIteratorpublic void close()
RawKeyValueIteratorclose in interface RawKeyValueIteratorCopyright © 2022 Apache Software Foundation. All rights reserved.