org.terrier.structures.indexing.singlepass

Class BlockPostingInRun.BlockPIRPostingIterator

java.lang.Object

org.terrier.structures.postings.IterablePostingImpl

org.terrier.structures.indexing.singlepass.SimplePostingInRun.PIRPostingIterator

org.terrier.structures.indexing.singlepass.BlockPostingInRun.BlockPIRPostingIterator

All Implemented Interfaces:

Closeable, AutoCloseable, BlockPosting, IterablePosting, Posting

Enclosing class:

BlockPostingInRun

protected class BlockPostingInRun.BlockPIRPostingIterator
extends SimplePostingInRun.PIRPostingIterator
implements BlockPosting

Field Summary

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

END_OF_LIST, EOL

Constructor Summary

Constructors

Constructor and Description
BlockPIRPostingIterator(int runShift)

Method Summary

Modifier and Type	Method and Description
WritablePosting	asWritablePosting() Copies this posting to one free of an iterator.
int[]	getPositions() Return positions of occurrences
protected void	readPostingNotDocid()

Methods inherited from class org.terrier.structures.indexing.singlepass.SimplePostingInRun.PIRPostingIterator

close, endOfPostings, getDocumentLength, getFrequency, getId, next, setId

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

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

BlockPIRPostingIterator

public BlockPIRPostingIterator(int runShift)

Method Detail

readPostingNotDocid

protected void readPostingNotDocid()
                            throws IOException

Overrides:

readPostingNotDocid in class SimplePostingInRun.PIRPostingIterator

Throws:

IOException

getPositions

public int[] getPositions()

Description copied from interface: BlockPosting

Return positions of occurrences

Specified by:

getPositions in interface BlockPosting

asWritablePosting

public WritablePosting asWritablePosting()

Description copied from interface: Posting

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

Specified by:

asWritablePosting in interface Posting

Overrides:

asWritablePosting in class SimplePostingInRun.PIRPostingIterator

Returns:

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