org.apache.jackrabbit.core.query.lucene
Class LengthSortComparator

java.lang.Object
  org.apache.jackrabbit.core.query.lucene.LengthSortComparator

All Implemented Interfaces:

Serializable, org.apache.lucene.search.SortComparatorSource

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

LengthSortComparator implements a sort comparator source that sorts on the length of property values.

See Also:

Serialized Form

Constructor Summary

LengthSortComparator(NamespaceMappings nsMappings)

Method Summary

org.apache.lucene.search.ScoreDocComparator

newComparator(org.apache.lucene.index.IndexReader reader, String fieldname) Creates a new comparator.

Methods inherited from class java.lang.Object

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

Constructor Detail

LengthSortComparator

public LengthSortComparator(NamespaceMappings nsMappings)

Method Detail

newComparator

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

Creates a new comparator.

Specified by:

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

Parameters:

reader - the current index reader.

fieldname - the name of the property to sort on. This is the string representation of Name.

Returns:

the score doc comparator.

Throws:

IOException - if an error occurs while reading from the index.