org.apache.mahout.common.iterator.sequencefile

Class SequenceFileIterable<K extends org.apache.hadoop.io.Writable,V extends org.apache.hadoop.io.Writable>

java.lang.Object

org.apache.mahout.common.iterator.sequencefile.SequenceFileIterable<K,V>

All Implemented Interfaces:

Iterable<Pair<K,V>>

public final class SequenceFileIterable<K extends org.apache.hadoop.io.Writable,V extends org.apache.hadoop.io.Writable>
extends Object
implements Iterable<Pair<K,V>>

Iterable counterpart to SequenceFileIterator.

Constructor Summary

Constructors

Constructor and Description
SequenceFileIterable(org.apache.hadoop.fs.Path path, boolean reuseKeyValueInstances, org.apache.hadoop.conf.Configuration conf)
SequenceFileIterable(org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf) Like SequenceFileIterable(Path, boolean, Configuration) but key and value instances are not reused by default.

Method Summary

Methods

Modifier and Type	Method and Description
Iterator<Pair<K,V>>	iterator()

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceFileIterable

public SequenceFileIterable(org.apache.hadoop.fs.Path path,
                    org.apache.hadoop.conf.Configuration conf)

Like SequenceFileIterable(Path, boolean, Configuration) but key and value instances are not reused by default.

Parameters:

path - file to iterate over

SequenceFileIterable

public SequenceFileIterable(org.apache.hadoop.fs.Path path,
                    boolean reuseKeyValueInstances,
                    org.apache.hadoop.conf.Configuration conf)

Parameters:

path - file to iterate over

reuseKeyValueInstances - if true, reuses instances of the key and value object instead of creating a new one for each read from the file

Method Detail

iterator

public Iterator<Pair<K,V>> iterator()

Specified by:

iterator in interface Iterable<Pair<K extends org.apache.hadoop.io.Writable,V extends org.apache.hadoop.io.Writable>>