Class MultiFunction
- java.lang.Object
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- org.apache.lucene.queries.function.ValueSource
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- org.apache.lucene.queries.function.valuesource.MultiFunction
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- Direct Known Subclasses:
DefFunction
public abstract class MultiFunction extends ValueSource
Abstract parent class forValueSource
implementations that wrap multiple ValueSources and apply their own logic.
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Nested Class Summary
Nested Classes Modifier and Type Class Description class
MultiFunction.Values
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Constructor Summary
Constructors Constructor Description MultiFunction(List<ValueSource> sources)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods 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()static String
description(String name, List<ValueSource> sources)
boolean
equals(Object o)
int
hashCode()
static String
toString(String name, FunctionValues[] valsArr, int doc)
static FunctionValues[]
valsArr(List<ValueSource> sources, Map fcontext, AtomicReaderContext readerContext)
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Methods inherited from class org.apache.lucene.queries.function.ValueSource
getSortField, getValues, newContext, toString
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Constructor Detail
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MultiFunction
public MultiFunction(List<ValueSource> sources)
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Method Detail
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description
public String description()
Description copied from class:ValueSource
description of field, used in explain()- Specified by:
description
in classValueSource
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description
public static String description(String name, List<ValueSource> sources)
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valsArr
public static FunctionValues[] valsArr(List<ValueSource> sources, Map fcontext, AtomicReaderContext readerContext) throws IOException
- Throws:
IOException
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toString
public static String toString(String name, FunctionValues[] valsArr, int doc)
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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 classValueSource
- Throws:
IOException
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hashCode
public int hashCode()
- Specified by:
hashCode
in classValueSource
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equals
public boolean equals(Object o)
- Specified by:
equals
in classValueSource
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