org.axiondb.functions
public class SignFunction extends BaseFunction implements ScalarFunction, FunctionFactory
double
value. If the value
is less than zero, -1 is returned. If the value equals zero, 0 is returned. If the
value is greater than zero, 1 is returned.
Version: $Revision: 1.7 $ $Date: 2005/12/20 18:32:28 $
Constructor Summary | |
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SignFunction() Creates a new instance of Class |
Method Summary | |
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Object | evaluate(RowDecorator row) |
DataType | getDataType() |
boolean | isValid() |
ConcreteFunction | makeNewInstance() |