org.apache.nutch.segment

Class SegmentMerger.ObjectInputFormat

java.lang.Object

org.apache.hadoop.mapred.FileInputFormat<K,V>

org.apache.hadoop.mapred.SequenceFileInputFormat<Text,MetaWrapper>

org.apache.nutch.segment.SegmentMerger.ObjectInputFormat

All Implemented Interfaces:

InputFormat<Text,MetaWrapper>

Enclosing class:

SegmentMerger

public static class SegmentMerger.ObjectInputFormat
extends SequenceFileInputFormat<Text,MetaWrapper>

Wraps inputs in an MetaWrapper, to permit merging different types in reduce and use additional metadata.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapred.FileInputFormat

FileInputFormat.Counter

Field Summary

Fields inherited from class org.apache.hadoop.mapred.FileInputFormat

INPUT_DIR_RECURSIVE, LOG, NUM_INPUT_FILES

Constructor Summary

Constructors

Constructor and Description
ObjectInputFormat()

Method Summary

Modifier and Type	Method and Description
RecordReader<Text,MetaWrapper>	getRecordReader(InputSplit split, JobConf job, Reporter reporter)

Methods inherited from class org.apache.hadoop.mapred.SequenceFileInputFormat

listStatus

Methods inherited from class org.apache.hadoop.mapred.FileInputFormat

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplitHosts, getSplits, isSplitable, makeSplit, makeSplit, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObjectInputFormat

public ObjectInputFormat()

Method Detail

getRecordReader

public RecordReader<Text,MetaWrapper> getRecordReader(InputSplit split,
                                                      JobConf job,
                                                      Reporter reporter)
                                               throws java.io.IOException

Specified by:

getRecordReader in interface InputFormat<Text,MetaWrapper>

Overrides:

getRecordReader in class SequenceFileInputFormat<Text,MetaWrapper>

Throws:

java.io.IOException