Package org.terrier.structures.postings

Class FieldORIterablePosting

java.lang.Object

org.terrier.structures.postings.IterablePostingImpl

org.terrier.structures.postings.ORIterablePosting

org.terrier.structures.postings.FieldORIterablePosting

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, FieldPosting, IterablePosting, Posting

Direct Known Subclasses:

BlockFieldORIterablePosting

public class FieldORIterablePosting
extends ORIterablePosting
implements FieldPosting

ORIterablePosting implementation that implements FieldPosting

Since:

3.5

Author:

Craig Macdonald

Field Summary

Fields inherited from interface org.terrier.structures.postings.IterablePosting

END_OF_LIST, EOL

Constructor Summary

Constructors

Constructor	Description
FieldORIterablePosting(IterablePosting[] ips)	Constructs an instance of FieldORIterablePosting.

Method Summary

Modifier and Type	Method	Description
protected void	addPosting(Posting _p)
WritablePosting	asWritablePosting()	Copy this posting to one free of an iterator.
protected void	firstPosting(Posting _p)
int[]	getFieldFrequencies()	Returns the frequencies of the term in each field of the document.
int[]	getFieldLengths()	Returns the lengths of the each field in the current document.
void	setFieldLengths(int[] fl)	.

Methods inherited from class org.terrier.structures.postings.ORIterablePosting

close, endOfPostings, getDocumentLength, getFrequency, getId, mergePostings, next, next

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terrier.structures.postings.Posting

getDocumentLength, getFrequency, getId, setId

Constructor Detail

FieldORIterablePosting

public FieldORIterablePosting(IterablePosting[] ips)
                       throws java.io.IOException

Constructs an instance of FieldORIterablePosting.

Parameters:

ips -

Throws:

java.io.IOException

Method Detail

getFieldFrequencies

public int[] getFieldFrequencies()

Description copied from interface: FieldPosting

Returns the frequencies of the term in each field of the document.

Specified by:

getFieldFrequencies in interface FieldPosting

Returns:

the frequencies of the term in each field of the document.

getFieldLengths

public int[] getFieldLengths()

Description copied from interface: FieldPosting

Returns the lengths of the each field in the current document.

Specified by:

getFieldLengths in interface FieldPosting

Returns:

the lengths of the each field in the current document.

setFieldLengths

public void setFieldLengths(int[] fl)

. This operation is unsupported.

Specified by:

setFieldLengths in interface FieldPosting

addPosting

protected void addPosting(Posting _p)

Overrides:

addPosting in class ORIterablePosting

firstPosting

protected void firstPosting(Posting _p)

Overrides:

firstPosting in class ORIterablePosting

asWritablePosting

public WritablePosting asWritablePosting()

Description copied from class: ORIterablePosting

Copy this posting to one free of an iterator. Kind of like a clone.

Specified by:

asWritablePosting in interface Posting

Overrides:

asWritablePosting in class ORIterablePosting

Returns:

an identical posting, but which can be manipulated free of this iterator