org.apache.lucene.queries.function.valuesource
Class SimpleFloatFunction

java.lang.Object
  extended by org.apache.lucene.queries.function.ValueSource
      extended by org.apache.lucene.queries.function.valuesource.SingleFunction
          extended by org.apache.lucene.queries.function.valuesource.SimpleFloatFunction

public abstract class SimpleFloatFunction
extends SingleFunction

A simple float function with a single argument


Field Summary
 
Fields inherited from class org.apache.lucene.queries.function.valuesource.SingleFunction
source
 
Constructor Summary
SimpleFloatFunction(ValueSource source)
           
 
Method Summary
protected abstract  float func(int doc, FunctionValues vals)
           
 FunctionValues getValues(Map context, AtomicReaderContext readerContext)
          Gets the values for this reader and the context that was previously passed to createWeight()
 
Methods inherited from class org.apache.lucene.queries.function.valuesource.SingleFunction
createWeight, description, equals, hashCode, name
 
Methods inherited from class org.apache.lucene.queries.function.ValueSource
getSortField, newContext, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

SimpleFloatFunction

public SimpleFloatFunction(ValueSource source)
Method Detail

func

protected abstract float func(int doc,
                              FunctionValues vals)

getValues

public FunctionValues getValues(Map context,
                                AtomicReaderContext readerContext)
                         throws IOException
Description copied from class: ValueSource
Gets the values for this reader and the context that was previously passed to createWeight()

Specified by:
getValues in class ValueSource
Throws:
IOException


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