org.terrier.structures.postings

Class ArrayOfBlockIterablePosting

java.lang.Object

org.terrier.structures.postings.IterablePostingImpl

org.terrier.structures.postings.ArrayOfIdsIterablePosting

org.terrier.structures.postings.ArrayOfBasicIterablePosting

org.terrier.structures.postings.ArrayOfBlockIterablePosting

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable, BlockPosting, IterablePosting, Posting

public class ArrayOfBlockIterablePosting
extends ArrayOfBasicIterablePosting
implements BlockPosting

An array structure that golds BlockIterablePostings

Since:

4.0

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

ids, indice

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

END_OF_LIST, EOL

Constructor Summary

Constructors

Constructor and Description
ArrayOfBlockIterablePosting(int[] _ids, int[] _freqs, int[] posCount, int[] allpos)

Method Summary

Modifier and Type	Method and Description
int[]	getPositions() Return positions of occurrences
int	next() Move this iterator to the next posting.

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, reset, setId

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

ArrayOfBlockIterablePosting

public ArrayOfBlockIterablePosting(int[] _ids,
                                   int[] _freqs,
                                   int[] posCount,
                                   int[] allpos)

Method Detail

getPositions

public int[] getPositions()

Description copied from interface: BlockPosting

Return positions of occurrences

Specified by:

getPositions in interface BlockPosting

next

public int next()
         throws IOException

Description copied from class: ArrayOfIdsIterablePosting

Move this iterator to the next posting.

Specified by:

next in interface IterablePosting

Overrides:

next in class ArrayOfIdsIterablePosting

Returns:

id of next posting, or EOL if end of posting list

Throws:

IOException