public static class MultiFileWordCount.CombineFileLineRecordReader extends RecordReader<MultiFileWordCount.WordOffset,Text>
Constructor and Description |
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MultiFileWordCount.CombineFileLineRecordReader(CombineFileSplit split,
TaskAttemptContext context,
Integer index) |
Modifier and Type | Method and Description |
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void |
close()
Close the record reader.
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MultiFileWordCount.WordOffset |
getCurrentKey()
Get the current key
|
Text |
getCurrentValue()
Get the current value.
|
float |
getProgress()
The current progress of the record reader through its data.
|
void |
initialize(InputSplit split,
TaskAttemptContext context)
Called once at initialization.
|
boolean |
nextKeyValue()
Read the next key, value pair.
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public MultiFileWordCount.CombineFileLineRecordReader(CombineFileSplit split, TaskAttemptContext context, Integer index) throws IOException
IOException
public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException
RecordReader
initialize
in class RecordReader<MultiFileWordCount.WordOffset,Text>
split
- the split that defines the range of records to readcontext
- the information about the taskIOException
InterruptedException
public void close() throws IOException
RecordReader
close
in interface Closeable
close
in interface AutoCloseable
close
in class RecordReader<MultiFileWordCount.WordOffset,Text>
IOException
public float getProgress() throws IOException
RecordReader
getProgress
in class RecordReader<MultiFileWordCount.WordOffset,Text>
IOException
public boolean nextKeyValue() throws IOException
RecordReader
nextKeyValue
in class RecordReader<MultiFileWordCount.WordOffset,Text>
IOException
public MultiFileWordCount.WordOffset getCurrentKey() throws IOException, InterruptedException
RecordReader
getCurrentKey
in class RecordReader<MultiFileWordCount.WordOffset,Text>
IOException
InterruptedException
public Text getCurrentValue() throws IOException, InterruptedException
RecordReader
getCurrentValue
in class RecordReader<MultiFileWordCount.WordOffset,Text>
IOException
InterruptedException
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