org.axiondb.functions
public class IsNullFunction extends BaseFunction implements ScalarFunction, FunctionFactory
Version: $Revision: 1.2 $ $Date: 2004/09/09 23:47:44 $
Constructor Summary | |
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IsNullFunction() |
Method Summary | |
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Object | evaluate(RowDecorator row) |
DataType | getDataType() |
boolean | isValid() |
ConcreteFunction | makeNewInstance() |