org.alfresco.solr

Class AlfrescoSolrDataModel.TermOrdValComparator

java.lang.Object

org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

org.alfresco.solr.AlfrescoSolrDataModel.TermOrdValComparator

Enclosing class:

AlfrescoSolrDataModel

public static final class AlfrescoSolrDataModel.TermOrdValComparator
extends org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

Sorts by field's natural Term sort order, using ordinals. This is functionally equivalent to FieldComparator.TermValComparator, but it first resolves the string to their relative ordinal positions (using the index returned by FieldCache.getTermsIndex(org.apache.lucene.index.AtomicReader, java.lang.String)), and does most comparisons using the ordinals. For medium to large results, this comparator will be much faster than FieldComparator.TermValComparator. For very small result sets it may be slower.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.FieldComparator

org.apache.lucene.search.FieldComparator.ByteComparator, org.apache.lucene.search.FieldComparator.DocComparator, org.apache.lucene.search.FieldComparator.DoubleComparator, org.apache.lucene.search.FieldComparator.FloatComparator, org.apache.lucene.search.FieldComparator.IntComparator, org.apache.lucene.search.FieldComparator.LongComparator, org.apache.lucene.search.FieldComparator.NumericComparator<T extends Number>, org.apache.lucene.search.FieldComparator.RelevanceComparator, org.apache.lucene.search.FieldComparator.ShortComparator, org.apache.lucene.search.FieldComparator.TermOrdValComparator, org.apache.lucene.search.FieldComparator.TermValComparator

Constructor Summary

Constructors

Constructor and Description
TermOrdValComparator(int numHits, String field) Creates this, sorting missing values first.
TermOrdValComparator(int numHits, String field, boolean sortMissingLast) Creates this, with control over how missing values are sorted.

Method Summary

Modifier and Type	Method and Description
int	compare(int slot1, int slot2)
int	compareBottom(int doc)
int	compareTop(int doc)
int	compareValues(org.apache.lucene.util.BytesRef val1, org.apache.lucene.util.BytesRef val2)
void	copy(int slot, int doc)
void	setBottom(int bottom)
org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>	setNextReader(org.apache.lucene.index.AtomicReaderContext context)
void	setTopValue(org.apache.lucene.util.BytesRef value)
org.apache.lucene.util.BytesRef	value(int slot)

Methods inherited from class org.apache.lucene.search.FieldComparator

setScorer

Methods inherited from class java.lang.Object

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

Constructor Detail

TermOrdValComparator

public TermOrdValComparator(int numHits,
                            String field)

Creates this, sorting missing values first.

TermOrdValComparator

public TermOrdValComparator(int numHits,
                            String field,
                            boolean sortMissingLast)

Creates this, with control over how missing values are sorted. Pass sortMissingLast=true to put missing values at the end.

Method Detail

compare

public int compare(int slot1,
                   int slot2)

Specified by:

compare in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

compareBottom

public int compareBottom(int doc)

Specified by:

compareBottom in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

copy

public void copy(int slot,
                 int doc)

Specified by:

copy in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

setNextReader

public org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef> setNextReader(org.apache.lucene.index.AtomicReaderContext context)
                                                                                        throws IOException

Specified by:

setNextReader in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

Throws:

IOException

setBottom

public void setBottom(int bottom)

Specified by:

setBottom in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

setTopValue

public void setTopValue(org.apache.lucene.util.BytesRef value)

Specified by:

setTopValue in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

value

public org.apache.lucene.util.BytesRef value(int slot)

Specified by:

value in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

compareTop

public int compareTop(int doc)

Specified by:

compareTop in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>

compareValues

public int compareValues(org.apache.lucene.util.BytesRef val1,
                         org.apache.lucene.util.BytesRef val2)

Overrides:

compareValues in class org.apache.lucene.search.FieldComparator<org.apache.lucene.util.BytesRef>