org.apache.solr.search
Class MissingStringLastComparatorSource

java.lang.Object
  org.apache.solr.search.MissingStringLastComparatorSource

All Implemented Interfaces:

Serializable, org.apache.lucene.search.SortComparatorSource

public class MissingStringLastComparatorSource
extends Object
implements org.apache.lucene.search.SortComparatorSource

A SortComparatorSource for strings that orders null values after non-null values. Based on FieldSortedHitQueue.comparatorString

Version:

$Id: MissingStringLastComparatorSource.java 631357 2008-02-26 19:47:07Z yonik $

See Also:

Serialized Form

Field Summary

static String

bigString

Constructor Summary

MissingStringLastComparatorSource()

MissingStringLastComparatorSource(String missingValueProxy)
Creates a SortComparatorSource that uses missingValueProxy as the value to return from ScoreDocComparator.sortValue() which is only used my multisearchers to determine how to collate results from their searchers.

Method Summary

org.apache.lucene.search.ScoreDocComparator

newComparator(org.apache.lucene.index.IndexReader reader, String fieldname)

Methods inherited from class java.lang.Object

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

Field Detail

bigString

public static final String bigString

See Also:

Constant Field Values

Constructor Detail

MissingStringLastComparatorSource

public MissingStringLastComparatorSource()

MissingStringLastComparatorSource

public MissingStringLastComparatorSource(String missingValueProxy)

Creates a SortComparatorSource that uses missingValueProxy as the value to return from ScoreDocComparator.sortValue() which is only used my multisearchers to determine how to collate results from their searchers.

Parameters:

missingValueProxy - The value returned when sortValue() is called for a document missing the sort field. This value is *not* normally used for sorting, but used to create

Method Detail

newComparator

public org.apache.lucene.search.ScoreDocComparator newComparator(org.apache.lucene.index.IndexReader reader,
                                                                 String fieldname)
                                                          throws IOException

Specified by:

newComparator in interface org.apache.lucene.search.SortComparatorSource

Throws:

IOException