Package org.terrier.structures.collections

Class FSOrderedMapFile.EntryIterator<IK extends org.apache.hadoop.io.Writable,IV extends org.apache.hadoop.io.Writable>

java.lang.Object

org.terrier.structures.collections.FSOrderedMapFile.EntryIterator<IK,IV>

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.util.Iterator<java.util.Map.Entry<IK,IV>>, Skipable

Enclosing class:

FSOrderedMapFile<K extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable>

public static class FSOrderedMapFile.EntryIterator<IK extends org.apache.hadoop.io.Writable,IV extends org.apache.hadoop.io.Writable>
extends java.lang.Object
implements java.util.Iterator<java.util.Map.Entry<IK,IV>>, java.io.Closeable, Skipable

an iterator for entries.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	counter
protected java.io.DataInput	di
protected FixedSizeWriteableFactory<IK>	keyFactory
protected int	numEntries
protected FixedSizeWriteableFactory<IV>	valueFactory

Constructor Summary

Constructors

Constructor	Description
EntryIterator(java.lang.String filename, FixedSizeWriteableFactory<IK> _keyFactory, FixedSizeWriteableFactory<IV> _valueFactory)	constructor

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	hasNext()
java.util.Map.Entry<IK,IV>	next()
void	remove()
void	skip(int _numEntries)

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

Field Detail

di

protected java.io.DataInput di

numEntries

protected int numEntries

counter

protected int counter

keyFactory

protected FixedSizeWriteableFactory<IK extends org.apache.hadoop.io.Writable> keyFactory

valueFactory

protected FixedSizeWriteableFactory<IV extends org.apache.hadoop.io.Writable> valueFactory

Constructor Detail

EntryIterator

public EntryIterator(java.lang.String filename,
                     FixedSizeWriteableFactory<IK> _keyFactory,
                     FixedSizeWriteableFactory<IV> _valueFactory)
              throws java.io.IOException

constructor

Parameters:

filename -

_keyFactory -

_valueFactory -

Throws:

java.io.IOException

Method Detail

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface java.io.Closeable

Throws:

java.io.IOException

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<IK extends org.apache.hadoop.io.Writable>

next

public java.util.Map.Entry<IK,IV> next()

Specified by:

next in interface java.util.Iterator<IK extends org.apache.hadoop.io.Writable>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<IK extends org.apache.hadoop.io.Writable>

skip

public void skip(int _numEntries)
          throws java.io.IOException

Specified by:

skip in interface Skipable

Throws:

java.io.IOException