org.axiondb.functions
public class CoalesceFunction extends BaseFunction implements ScalarFunction, FunctionFactory
COALESCE([value]+)
: returns the first non-null value in the
argument list.
Version: $Revision: 1.5 $ $Date: 2005/12/20 18:32:28 $
Constructor Summary | |
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CoalesceFunction() |
Method Summary | |
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Object | evaluate(RowDecorator row) |
DataType | getDataType() |
boolean | isValid() |
ConcreteFunction | makeNewInstance() |