Class FloatFieldSource
- java.lang.Object
-
- org.apache.lucene.queries.function.ValueSource
-
- org.apache.lucene.queries.function.valuesource.FieldCacheSource
-
- org.apache.lucene.queries.function.valuesource.FloatFieldSource
-
- Direct Known Subclasses:
MultiValuedFloatFieldSource
public class FloatFieldSource extends FieldCacheSource
Obtains float field values fromLeafReader.getNumericDocValues(java.lang.String)and makes those values available as other numeric types, casting as needed.
-
-
Field Summary
-
Fields inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
field
-
-
Constructor Summary
Constructors Constructor Description FloatFieldSource(String field)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Stringdescription()description of field, used in explain()booleanequals(Object o)protected NumericDocValuesgetNumericDocValues(Map<Object,Object> context, LeafReaderContext readerContext)SortFieldgetSortField(boolean reverse)EXPERIMENTAL: This method is subject to change.FunctionValuesgetValues(Map<Object,Object> context, LeafReaderContext readerContext)Gets the values for this reader and the context that was previously passed to createWeight().inthashCode()-
Methods inherited from class org.apache.lucene.queries.function.valuesource.FieldCacheSource
getField
-
Methods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, createWeight, fromDoubleValuesSource, newContext, toString
-
-
-
-
Constructor Detail
-
FloatFieldSource
public FloatFieldSource(String field)
-
-
Method Detail
-
description
public String description()
Description copied from class:ValueSourcedescription of field, used in explain()- Overrides:
descriptionin classFieldCacheSource
-
getSortField
public SortField getSortField(boolean reverse)
Description copied from class:ValueSourceEXPERIMENTAL: This method is subject to change.Get the SortField for this ValueSource. Uses the
ValueSource.getValues(java.util.Map, org.apache.lucene.index.LeafReaderContext)to populate the SortField.- Overrides:
getSortFieldin classValueSource- Parameters:
reverse- true if this is a reverse sort.- Returns:
- The
SortFieldfor the ValueSource
-
getValues
public FunctionValues getValues(Map<Object,Object> context, LeafReaderContext readerContext) throws IOException
Description copied from class:ValueSourceGets the values for this reader and the context that was previously passed to createWeight(). The values must be consumed in a forward docID manner, and you must call this method again to iterate through the values again.- Specified by:
getValuesin classValueSource- Throws:
IOException
-
getNumericDocValues
protected NumericDocValues getNumericDocValues(Map<Object,Object> context, LeafReaderContext readerContext) throws IOException
- Throws:
IOException
-
equals
public boolean equals(Object o)
- Overrides:
equalsin classFieldCacheSource
-
hashCode
public int hashCode()
- Overrides:
hashCodein classFieldCacheSource
-
-