org.terrier.structures

Class AbstractPostingOutputStream

java.lang.Object

org.terrier.structures.AbstractPostingOutputStream

Direct Known Subclasses:

DirectInvertedOutputStream, IntegerCodingPostingOutputStream

public abstract class AbstractPostingOutputStream
extends Object

Abstract class that is extended by other posting output stream implementations

Since:

4.0

Author:

Craig Macdonald

Constructor Summary

Constructors

Constructor and Description
AbstractPostingOutputStream()

Method Summary

Modifier and Type	Method and Description
abstract void	close()
abstract int	getLastDocidWritten()
abstract BitFilePosition	getOffset()
abstract Class<? extends IterablePosting>	getPostingIteratorClass()
abstract BitIndexPointer	writePostings(int[][] postings, int startOffset, int Length, int firstId)
abstract BitIndexPointer	writePostings(IterablePosting postings)
abstract BitIndexPointer	writePostings(IterablePosting postings, int previousId)
abstract BitIndexPointer	writePostings(Iterator<Posting> iterator)
abstract BitIndexPointer	writePostings(Iterator<Posting> iterator, int previousId)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractPostingOutputStream

public AbstractPostingOutputStream()

Method Detail

getOffset

public abstract BitFilePosition getOffset()

getLastDocidWritten

public abstract int getLastDocidWritten()

close

public abstract void close()

writePostings

public abstract BitIndexPointer writePostings(int[][] postings,
                                              int startOffset,
                                              int Length,
                                              int firstId)
                                       throws IOException

Throws:

IOException

writePostings

public abstract BitIndexPointer writePostings(IterablePosting postings)
                                       throws IOException

Throws:

IOException

writePostings

public abstract BitIndexPointer writePostings(IterablePosting postings,
                                              int previousId)
                                       throws IOException

Throws:

IOException

writePostings

public abstract BitIndexPointer writePostings(Iterator<Posting> iterator,
                                              int previousId)
                                       throws IOException

Throws:

IOException

writePostings

public abstract BitIndexPointer writePostings(Iterator<Posting> iterator)
                                       throws IOException

Throws:

IOException

getPostingIteratorClass

public abstract Class<? extends IterablePosting> getPostingIteratorClass()