org.apache.mahout.common.iterator.sequencefile

Class SequenceFileValueIterator<V extends org.apache.hadoop.io.Writable>

java.lang.Object

com.google.common.collect.UnmodifiableIterator<T>

com.google.common.collect.AbstractIterator<V>

org.apache.mahout.common.iterator.sequencefile.SequenceFileValueIterator<V>

All Implemented Interfaces:

Closeable, AutoCloseable, Iterator<V>

public final class SequenceFileValueIterator<V extends org.apache.hadoop.io.Writable>
extends com.google.common.collect.AbstractIterator<V>
implements Closeable

Iterator over a SequenceFile's values only.

Constructor Summary

Constructors

Constructor and Description
SequenceFileValueIterator(org.apache.hadoop.fs.Path path, boolean reuseKeyValueInstances, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	close()
protected V	computeNext()
Class<V>	getValueClass()

Methods inherited from class com.google.common.collect.AbstractIterator

endOfData, hasNext, next, peek

Methods inherited from class com.google.common.collect.UnmodifiableIterator

remove

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

SequenceFileValueIterator

public SequenceFileValueIterator(org.apache.hadoop.fs.Path path,
                                 boolean reuseKeyValueInstances,
                                 org.apache.hadoop.conf.Configuration conf)
                          throws IOException

Throws:

IOException - if path can't be read, or its key or value class can't be instantiated

Method Detail

getValueClass

public Class<V> getValueClass()

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException

computeNext

protected V computeNext()

Specified by:

computeNext in class com.google.common.collect.AbstractIterator<V extends org.apache.hadoop.io.Writable>