org.axiondb.functions
Class ArithmeticFunction
java.lang.Object
org.axiondb.BaseSelectable
org.axiondb.functions.BaseFunction
org.axiondb.functions.ArithmeticFunction
- All Implemented Interfaces:
- java.io.Serializable, Function, ConcreteFunction, ScalarFunction, Selectable
- Direct Known Subclasses:
- AddFunction, DivideFunction, MultiplyFunction, SubtractFunction
public abstract class ArithmeticFunction
- extends BaseFunction
- implements ScalarFunction
- Version:
- $Revision: 1.9 $ $Date: 2005/12/20 18:32:28 $
- See Also:
- Serialized Form
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
ArithmeticFunction
public ArithmeticFunction(java.lang.String name)
getDataType
public final DataType getDataType()
- Specified by:
getDataType
in interface Selectable
- Specified by:
getDataType
in class BaseFunction
evaluate
public final java.lang.Object evaluate(RowDecorator row)
throws AxionException
- Specified by:
evaluate
in interface ScalarFunction
- Specified by:
evaluate
in interface Selectable
- Throws:
AxionException
isValid
public final boolean isValid()
- Specified by:
isValid
in interface ConcreteFunction
- Specified by:
isValid
in class BaseFunction
operate
protected abstract java.math.BigDecimal operate(java.math.BigDecimal left,
java.math.BigDecimal right)
throws AxionException
- Throws:
AxionException
setDataType
protected void setDataType(DataType newType)