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
Obtains float field values from
LeafReader.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 -
Method Summary
Modifier and TypeMethodDescriptiondescription of field, used in explain()booleanprotected NumericDocValuesgetNumericDocValues(Map<Object, Object> context, LeafReaderContext readerContext) getSortField(boolean reverse) EXPERIMENTAL: This method is subject to change.getValues(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
getFieldMethods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, createWeight, fromDoubleValuesSource, newContext, toString
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Constructor Details
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FloatFieldSource
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Method Details
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description
Description copied from class:ValueSourcedescription of field, used in explain()- Overrides:
descriptionin classFieldCacheSource
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getSortField
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
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getValues
public FunctionValues getValues(Map<Object, Object> context, LeafReaderContext readerContext) throws IOExceptionDescription 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
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getNumericDocValues
protected NumericDocValues getNumericDocValues(Map<Object, Object> context, LeafReaderContext readerContext) throws IOException- Throws:
IOException
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equals
- Overrides:
equalsin classFieldCacheSource
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hashCode
public int hashCode()- Overrides:
hashCodein classFieldCacheSource
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