public static class BaileyBorweinPlouffe.BbpInputFormat extends InputFormat<LongWritable,IntWritable>
BaileyBorweinPlouffe.BbpMapper
.
Keys and values represent offsets and sizes, respectively.Constructor and Description |
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BaileyBorweinPlouffe.BbpInputFormat() |
Modifier and Type | Method and Description |
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RecordReader<LongWritable,IntWritable> |
createRecordReader(InputSplit generic,
TaskAttemptContext context)
Create a record reader for a given split.
|
List<InputSplit> |
getSplits(JobContext context)
Logically split the set of input files for the job.
|
public List<InputSplit> getSplits(JobContext context)
Each InputSplit
is then assigned to an individual Mapper
for processing.
Note: The split is a logical split of the inputs and the
input files are not physically split into chunks. For e.g. a split could
be <input-file-path, start, offset> tuple. The InputFormat
also creates the RecordReader
to read the InputSplit
.
getSplits
in class InputFormat<LongWritable,IntWritable>
context
- job configuration.InputSplit
s for the job.public RecordReader<LongWritable,IntWritable> createRecordReader(InputSplit generic, TaskAttemptContext context)
RecordReader.initialize(InputSplit, TaskAttemptContext)
before
the split is used.createRecordReader
in class InputFormat<LongWritable,IntWritable>
generic
- the split to be readcontext
- the information about the taskCopyright © 2013 Apache Software Foundation. All rights reserved.