Class LinearFloatFunction


  • public class LinearFloatFunction
    extends ValueSource
    LinearFloatFunction implements a linear function over another ValueSource.
    Normally Used as an argument to a FunctionQuery
    • Constructor Detail

      • LinearFloatFunction

        public LinearFloatFunction​(ValueSource source,
                                   float slope,
                                   float intercept)
    • Method Detail

      • description

        public java.lang.String description()
        Description copied from class: ValueSource
        description of field, used in explain()
        Specified by:
        description in class ValueSource
      • getValues

        public FunctionValues getValues​(java.util.Map context,
                                        AtomicReaderContext readerContext)
                                 throws java.io.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:
        java.io.IOException
      • createWeight

        public void createWeight​(java.util.Map context,
                                 IndexSearcher searcher)
                          throws java.io.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:
        java.io.IOException
      • equals

        public boolean equals​(java.lang.Object o)
        Specified by:
        equals in class ValueSource