Package org.terrier.structures

Class AbstractPostingOutputStream

java.lang.Object

org.terrier.structures.AbstractPostingOutputStream

Direct Known Subclasses:

DirectInvertedOutputStream

public abstract class AbstractPostingOutputStream
extends java.lang.Object

Abstract class that is extended by other posting output stream implementations

Since:

4.0

Author:

Craig Macdonald

Constructor Summary

Constructors

Constructor	Description
AbstractPostingOutputStream()

Method Summary

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

Throws:

java.io.IOException

writePostings

public abstract BitIndexPointer writePostings(IterablePosting postings)
                                       throws java.io.IOException

Throws:

java.io.IOException

writePostings

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

Throws:

java.io.IOException

writePostings

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

Throws:

java.io.IOException

writePostings

public abstract BitIndexPointer writePostings(java.util.Iterator<Posting> iterator)
                                       throws java.io.IOException

Throws:

java.io.IOException

getPostingIteratorClass

public abstract java.lang.Class<? extends IterablePosting> getPostingIteratorClass()