Package org.apache.lucene.search

Class FieldComparatorSource

java.lang.Object

org.apache.lucene.search.FieldComparatorSource

public abstract class FieldComparatorSource
extends Object

Provides a FieldComparator for custom field sorting.

Constructor Summary

Constructors

Constructor	Description
FieldComparatorSource()

Method Summary

Modifier and Type	Method	Description
abstract FieldComparator<?>	newComparator(String fieldname, int numHits, int sortPos, boolean reversed)	Creates a comparator for the field in the given index.

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldComparatorSource

public FieldComparatorSource()

Method Detail

newComparator

public abstract FieldComparator<?> newComparator(String fieldname,
                                                 int numHits,
                                                 int sortPos,
                                                 boolean reversed)
                                          throws IOException

Creates a comparator for the field in the given index.

Parameters:

fieldname - Name of the field to create comparator for.

Returns:

FieldComparator.

Throws:

IOException - If an error occurs reading the index.