Package org.apache.lucene.queries.function.valuesource

Class VectorValueSource

java.lang.Object

org.apache.lucene.queries.function.ValueSource

org.apache.lucene.queries.function.valuesource.MultiValueSource

org.apache.lucene.queries.function.valuesource.VectorValueSource

public class VectorValueSource
extends MultiValueSource

Converts individual ValueSource instances to leverage the FunctionValues *Val functions that work with multiple values, i.e. FunctionValues.doubleVal(int, double[])

Constructor Summary

Constructors

Constructor	Description
VectorValueSource(List<ValueSource> sources)

Method Summary

Modifier and Type	Method	Description
void	createWeight(Map context, IndexSearcher searcher)	Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context.
String	description()	description of field, used in explain()
int	dimension()
boolean	equals(Object o)
List<ValueSource>	getSources()
FunctionValues	getValues(Map context, AtomicReaderContext readerContext)	Gets the values for this reader and the context that was previously passed to createWeight()
int	hashCode()
String	name()

Methods inherited from class org.apache.lucene.queries.function.ValueSource

getSortField, newContext, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Details

VectorValueSource

public VectorValueSource(List<ValueSource> sources)

Method Details

getSources

public List<ValueSource> getSources()

dimension

public int dimension()

Specified by:

dimension in class MultiValueSource

name

public String name()

getValues

public FunctionValues getValues(Map context,
 AtomicReaderContext readerContext)
                         throws IOException

Description copied from class: ValueSource

Gets the values for this reader and the context that was previously passed to createWeight()

Specified by:

getValues in class ValueSource

Throws:

IOException

createWeight

public void createWeight(Map context,
 IndexSearcher searcher)
                  throws IOException

Description copied from class: ValueSource

Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context. The context object will be passed to getValues() where this info can be retrieved.

Overrides:

createWeight in class ValueSource

Throws:

IOException

description

public String description()

Description copied from class: ValueSource

description of field, used in explain()

Specified by:

description in class ValueSource

equals

public boolean equals(Object o)

Specified by:

equals in class ValueSource

hashCode

public int hashCode()

Specified by:

hashCode in class ValueSource