@InterfaceAudience.LimitedPrivate(value={"MapReduce","Pig"}) @InterfaceStability.Unstable public class LineRecordReader extends Object implements RecordReader<LongWritable,Text>
Modifier and Type | Class and Description |
---|---|
static class |
LineRecordReader.LineReader
Deprecated.
Use
LineReader instead. |
Constructor and Description |
---|
LineRecordReader(Configuration job,
FileSplit split) |
LineRecordReader(Configuration job,
FileSplit split,
byte[] recordDelimiter) |
LineRecordReader(InputStream in,
long offset,
long endOffset,
Configuration job) |
LineRecordReader(InputStream in,
long offset,
long endOffset,
Configuration job,
byte[] recordDelimiter) |
LineRecordReader(InputStream in,
long offset,
long endOffset,
int maxLineLength) |
LineRecordReader(InputStream in,
long offset,
long endOffset,
int maxLineLength,
byte[] recordDelimiter) |
Modifier and Type | Method and Description |
---|---|
void |
close()
Close this
InputSplit to future operations. |
LongWritable |
createKey()
Create an object of the appropriate type to be used as a key.
|
Text |
createValue()
Create an object of the appropriate type to be used as a value.
|
long |
getPos()
Returns the current position in the input.
|
float |
getProgress()
Get the progress within the split
|
boolean |
next(LongWritable key,
Text value)
Read a line.
|
public LineRecordReader(Configuration job, FileSplit split) throws IOException
IOException
public LineRecordReader(Configuration job, FileSplit split, byte[] recordDelimiter) throws IOException
IOException
public LineRecordReader(InputStream in, long offset, long endOffset, int maxLineLength)
public LineRecordReader(InputStream in, long offset, long endOffset, int maxLineLength, byte[] recordDelimiter)
public LineRecordReader(InputStream in, long offset, long endOffset, Configuration job) throws IOException
IOException
public LineRecordReader(InputStream in, long offset, long endOffset, Configuration job, byte[] recordDelimiter) throws IOException
IOException
public LongWritable createKey()
RecordReader
createKey
in interface RecordReader<LongWritable,Text>
public Text createValue()
RecordReader
createValue
in interface RecordReader<LongWritable,Text>
public boolean next(LongWritable key, Text value) throws IOException
next
in interface RecordReader<LongWritable,Text>
key
- the key to read data intovalue
- the value to read data intoIOException
public float getProgress() throws IOException
getProgress
in interface RecordReader<LongWritable,Text>
0.0
to 1.0
.IOException
public long getPos() throws IOException
RecordReader
getPos
in interface RecordReader<LongWritable,Text>
IOException
public void close() throws IOException
RecordReader
InputSplit
to future operations.close
in interface RecordReader<LongWritable,Text>
IOException
Copyright © 2013 Apache Software Foundation. All rights reserved.