public class VectorDistanceFunction extends ValueSource
for the special case
,
Serialized FormModifier and Type | Field and Description |
---|---|
protected float |
oneOverPower |
protected float |
power |
protected MultiValueSource |
source1 |
protected MultiValueSource |
source2 |
Constructor and Description |
---|
VectorDistanceFunction(float power,
MultiValueSource source1,
MultiValueSource source2) |
Modifier and Type | Method and Description |
---|---|
void |
createWeight(java.util.Map context,
org.apache.lucene.search.Searcher searcher)
Implementations should propagate createWeight to sub-ValueSources which can optionally store
weight info in the context.
|
java.lang.String |
description()
description of field, used in explain()
|
protected double |
distance(int doc,
DocValues dv1,
DocValues dv2)
Calculate the distance
|
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() |
protected java.lang.String |
name() |
getSortField, getValues, newContext, toString
protected MultiValueSource source1
protected MultiValueSource source2
protected float power
protected float oneOverPower
public VectorDistanceFunction(float power, MultiValueSource source1, MultiValueSource source2)
protected java.lang.String name()
protected double distance(int doc, DocValues dv1, DocValues dv2)
doc
- The current docdv1
- The values from the first MultiValueSourcedv2
- The values from the second MultiValueSourcepublic 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 void createWeight(java.util.Map context, org.apache.lucene.search.Searcher searcher) throws java.io.IOException
ValueSource
createWeight
in class ValueSource
java.io.IOException
public boolean equals(java.lang.Object o)
equals
in class ValueSource
public int hashCode()
hashCode
in class ValueSource
public java.lang.String description()
ValueSource
description
in class ValueSource