Class SingleFunction
java.lang.Object
org.apache.lucene.queries.function.ValueSource
org.apache.lucene.queries.function.valuesource.SingleFunction
- Direct Known Subclasses:
SimpleFloatFunction
A function with a single argument
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidcreateWeight(Map<Object, Object> context, IndexSearcher searcher) Implementations should propagate createWeight to sub-ValueSources which can optionally store weight info in the context.description of field, used in explain()booleaninthashCode()protected abstract Stringname()Methods inherited from class org.apache.lucene.queries.function.ValueSource
asDoubleValuesSource, asLongValuesSource, fromDoubleValuesSource, getSortField, getValues, newContext, toString
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Field Details
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source
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Constructor Details
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SingleFunction
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Method Details
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name
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description
Description copied from class:ValueSourcedescription of field, used in explain()- Specified by:
descriptionin classValueSource
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hashCode
public int hashCode()- Specified by:
hashCodein classValueSource
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equals
- Specified by:
equalsin classValueSource
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createWeight
Description copied from class:ValueSourceImplementations 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:
createWeightin classValueSource- Throws:
IOException
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