Package org.terrier.structures.postings

Class ArrayOfFieldIterablePosting

java.lang.Object

org.terrier.structures.postings.IterablePostingImpl

org.terrier.structures.postings.ArrayOfIdsIterablePosting

org.terrier.structures.postings.ArrayOfBasicIterablePosting

org.terrier.structures.postings.ArrayOfFieldIterablePosting

All Implemented Interfaces:

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

Direct Known Subclasses:

ArrayOfBlockFieldIterablePosting

public class ArrayOfFieldIterablePosting
extends ArrayOfBasicIterablePosting
implements FieldPosting

An instance of IterablePostings that works with passed arrays of ids and frequencies for each field.

Author:

Craig Macdonald

Field Summary

Fields inherited from class org.terrier.structures.postings.ArrayOfBasicIterablePosting

doclens, frequencies

Fields inherited from class org.terrier.structures.postings.ArrayOfIdsIterablePosting

id, ids, indice

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

END_OF_LIST, EOL

Constructor Summary

Constructors

Constructor	Description
ArrayOfFieldIterablePosting(int[] _ids, int[] _freqs, int[] _lens, int[][] _tff, int[][] _lf)
ArrayOfFieldIterablePosting(int[] _ids, int[] _freqs, int[] _lens, int[][] _tff, int[][] _lf, boolean invert)

Method Summary

Modifier and Type	Method	Description
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[] newLengths)

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

getDocumentLength, getFrequency

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

asWritablePosting, clone, close, endOfPostings, getId, next, reset

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

next

Methods inherited from class java.lang.Object

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

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

asWritablePosting, getDocumentLength, getFrequency, getId, setId

Constructor Detail

ArrayOfFieldIterablePosting

public ArrayOfFieldIterablePosting(int[] _ids,
                                   int[] _freqs,
                                   int[] _lens,
                                   int[][] _tff,
                                   int[][] _lf)

ArrayOfFieldIterablePosting

public ArrayOfFieldIterablePosting(int[] _ids,
                                   int[] _freqs,
                                   int[] _lens,
                                   int[][] _tff,
                                   int[][] _lf,
                                   boolean invert)

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[] newLengths)

Specified by:

setFieldLengths in interface FieldPosting