public abstract class MultiFloatFunction extends ValueSource
ValueSource
implementation which wraps multiple ValueSources
and applies an extendible float function to their values.Modifier and Type | Field and Description |
---|---|
protected ValueSource[] |
sources |
Constructor and Description |
---|
MultiFloatFunction(ValueSource[] sources) |
Modifier and Type | Method and Description |
---|---|
void |
createWeight(java.util.Map context,
IndexSearcher 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()
|
boolean |
equals(java.lang.Object o) |
protected boolean |
exists(int doc,
FunctionValues[] valsArr)
Called by
FunctionValues.exists(int) for each document. |
protected abstract float |
func(int doc,
FunctionValues[] valsArr) |
FunctionValues |
getValues(java.util.Map context,
LeafReaderContext readerContext)
Gets the values for this reader and the context that was previously
passed to createWeight().
|
int |
hashCode() |
protected abstract java.lang.String |
name() |
asDoubleValuesSource, asLongValuesSource, fromDoubleValuesSource, getSortField, newContext, toString
protected final ValueSource[] sources
public MultiFloatFunction(ValueSource[] sources)
protected abstract java.lang.String name()
protected abstract float func(int doc, FunctionValues[] valsArr) throws java.io.IOException
java.io.IOException
protected boolean exists(int doc, FunctionValues[] valsArr) throws java.io.IOException
FunctionValues.exists(int)
for each document.
Default impl returns true if all of the specified values
FunctionValues.exists(int)
for the specified doc, else false.java.io.IOException
FunctionValues.exists(int)
,
MultiFunction.allExists(int, org.apache.lucene.queries.function.FunctionValues[])
public java.lang.String description()
ValueSource
description
in class ValueSource
public FunctionValues getValues(java.util.Map context, LeafReaderContext readerContext) throws java.io.IOException
ValueSource
getValues
in class ValueSource
java.io.IOException
public void createWeight(java.util.Map context, IndexSearcher searcher) throws java.io.IOException
ValueSource
createWeight
in class ValueSource
java.io.IOException
public int hashCode()
hashCode
in class ValueSource
public boolean equals(java.lang.Object o)
equals
in class ValueSource