org.apache.hadoop.io

Interface SequenceFile.Sorter.RawKeyValueIterator

Enclosing class:

SequenceFile.Sorter

public static interface SequenceFile.Sorter.RawKeyValueIterator

The interface to iterate over raw keys/values of SequenceFiles.

Method Summary

Modifier and Type	Method and Description
void	close() closes the iterator so that the underlying streams can be closed.
org.apache.hadoop.io.DataOutputBuffer	getKey() Gets the current raw key.
org.apache.hadoop.util.Progress	getProgress()
SequenceFile.ValueBytes	getValue() Gets the current raw value.
boolean	next() Sets up the current key and value (for getKey and getValue).

Method Detail

getKey

org.apache.hadoop.io.DataOutputBuffer getKey()
                                      throws IOException

Gets the current raw key.

Returns:

DataOutputBuffer

Throws:

IOException - raised on errors performing I/O.

getValue

SequenceFile.ValueBytes getValue()
                          throws IOException

Gets the current raw value.

Returns:

ValueBytes

Throws:

IOException - raised on errors performing I/O.

next

boolean next()
      throws IOException

Sets up the current key and value (for getKey and getValue).

Returns:

true if there exists a key/value, false otherwise

Throws:

IOException - raised on errors performing I/O.

close

void close()
    throws IOException

closes the iterator so that the underlying streams can be closed.

Throws:

IOException - raised on errors performing I/O.

getProgress

org.apache.hadoop.util.Progress getProgress()

Returns:

Gets the Progress object; this has a float (0.0 - 1.0) indicating the bytes processed by the iterator so far.