public class OrdFieldSource extends ValueSource
FieldCache
using getStringIndex().
WARNING: ord() depends on the position in an index and can thus change when other documents are inserted or deleted,
or if a MultiSearcher is used.
WARNING: as of Solr 1.4, ord() and rord() can cause excess memory use since they must use a FieldCache entry
at the top level reader, while sorting and function queries now use entries at the segment level. Hence sorting
or using a different function query, in addition to ord()/rord() will double memory use.
ValueSource.ValueSourceComparator, ValueSource.ValueSourceComparatorSource, ValueSource.ValueSourceSortField
Modifier and Type | Field and Description |
---|---|
protected java.lang.String |
field |
private static int |
hcode |
Constructor and Description |
---|
OrdFieldSource(java.lang.String field) |
Modifier and Type | Method and Description |
---|---|
java.lang.String |
description()
description of field, used in explain()
|
boolean |
equals(java.lang.Object o) |
DocValues |
getValues(java.util.Map context,
org.apache.lucene.index.IndexReader reader)
Gets the values for this reader and the context that was previously
passed to createWeight()
|
int |
hashCode() |
createWeight, getSortField, getValues, newContext, toString
public java.lang.String description()
ValueSource
description
in class ValueSource
public DocValues getValues(java.util.Map context, org.apache.lucene.index.IndexReader reader) throws java.io.IOException
ValueSource
getValues
in class ValueSource
java.io.IOException
public boolean equals(java.lang.Object o)
equals
in class ValueSource
public int hashCode()
hashCode
in class ValueSource