com.thinkaurelius.titan.hadoop.formats.edgelist.rdf

Class RDFRecordReader

java.lang.Object

org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

com.thinkaurelius.titan.hadoop.formats.edgelist.rdf.RDFRecordReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class RDFRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

Author:

Marko A. Rodriguez (http://markorodriguez.com)

Constructor Summary

Constructors

Constructor and Description
RDFRecordReader(ModifiableHadoopConfiguration configuration)

Method Summary

Modifier and Type	Method and Description
void	close()
org.apache.hadoop.io.NullWritable	getCurrentKey()
FaunusElement	getCurrentValue()
float	getProgress()
void	initialize(org.apache.hadoop.mapreduce.InputSplit genericSplit, org.apache.hadoop.mapreduce.TaskAttemptContext context)
boolean	nextKeyValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

RDFRecordReader

public RDFRecordReader(ModifiableHadoopConfiguration configuration)
                throws IOException

Throws:

IOException

Method Detail

initialize

public void initialize(org.apache.hadoop.mapreduce.InputSplit genericSplit,
                       org.apache.hadoop.mapreduce.TaskAttemptContext context)
                throws IOException

Specified by:

initialize in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

Throws:

IOException

nextKeyValue

public boolean nextKeyValue()
                     throws IOException

Specified by:

nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

Throws:

IOException

getCurrentKey

public org.apache.hadoop.io.NullWritable getCurrentKey()

Specified by:

getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

getCurrentValue

public FaunusElement getCurrentValue()

Specified by:

getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

getProgress

public float getProgress()
                  throws IOException

Specified by:

getProgress in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Specified by:

close in class org.apache.hadoop.mapreduce.RecordReader<org.apache.hadoop.io.NullWritable,FaunusElement>

Throws:

IOException