org.apache.lucene.queries.function.valuesource
Class MultiFunction
java.lang.Object
org.apache.lucene.queries.function.ValueSource
org.apache.lucene.queries.function.valuesource.MultiFunction
- Direct Known Subclasses:
- DefFunction
public abstract class MultiFunction
- extends ValueSource
Abstract parent class for ValueSource
implementations that wrap multiple
ValueSources and apply their own logic.
sources
protected final List<ValueSource> sources
MultiFunction
public MultiFunction(List<ValueSource> sources)
name
protected abstract String name()
description
public String description()
- Description copied from class:
ValueSource
- description of field, used in explain()
- Specified by:
description
in class ValueSource
description
public static String description(String name,
List<ValueSource> sources)
valsArr
public static FunctionValues[] valsArr(List<ValueSource> sources,
Map fcontext,
AtomicReaderContext readerContext)
throws IOException
- Throws:
IOException
toString
public static String toString(String name,
FunctionValues[] valsArr,
int doc)
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 class ValueSource
- Throws:
IOException
hashCode
public int hashCode()
- Specified by:
hashCode
in class ValueSource
equals
public boolean equals(Object o)
- Specified by:
equals
in class ValueSource
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