org.terrier.structures.indexing.singlepass

Class RunsMerger.PostingComparator

java.lang.Object

org.terrier.structures.indexing.singlepass.RunsMerger.PostingComparator

All Implemented Interfaces:

Serializable, Comparator<RunIterator>

Enclosing class:

RunsMerger

public static class RunsMerger.PostingComparator
extends Object
implements Comparator<RunIterator>, Serializable

Implements a comparator for RunIterators (so it can be used by the queue). It decides the next reader by the lexicographical order of the terms in the top elements of the readers.

Author:

Roi Blanco and Craig Macdonald

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PostingComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(RunIterator a, RunIterator b)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

PostingComparator

public PostingComparator()

Method Detail

compare

public int compare(RunIterator a,
                   RunIterator b)

Specified by:

compare in interface Comparator<RunIterator>