org.axiondb.functions
Class ArithmeticFunction
java.lang.Object
org.axiondb.BaseSelectable
org.axiondb.functions.BaseFunction
org.axiondb.functions.ArithmeticFunction
- All Implemented Interfaces:
- ConcreteFunction, Function, ScalarFunction, Selectable, Serializable
- Direct Known Subclasses:
- AddFunction, DivideFunction, MultiplyFunction, SubtractFunction
- public abstract class ArithmeticFunction
- extends BaseFunction
- implements ScalarFunction
- Version:
- $Revision: 1.3 $ $Date: 2004/04/15 02:52:23 $
- See Also:
- Serialized Form
Methods inherited from class org.axiondb.functions.BaseFunction |
addArgument, getAlias, getArgument, getArgumentCount, getLabel, getName, setAlias, setArgument, setName, setVariableContext, toString |
ArithmeticFunction
public ArithmeticFunction(String name)
getDataType
public final DataType getDataType()
- Specified by:
getDataType
in interface Selectable
- Specified by:
getDataType
in class BaseFunction
evaluate
public final Object evaluate(RowDecorator row)
throws AxionException
- Specified by:
evaluate
in interface ScalarFunction
- Throws:
AxionException
isValid
public final boolean isValid()
- Specified by:
isValid
in interface ConcreteFunction
- Specified by:
isValid
in class BaseFunction
operate
protected abstract BigDecimal operate(BigDecimal left,
BigDecimal right)