org.axiondb.functions

Class MaxFunction

java.lang.Object

org.axiondb.BaseSelectable

org.axiondb.functions.BaseFunction

org.axiondb.functions.BaseAggregateFunction

org.axiondb.functions.ComparableAggregateFunction

org.axiondb.functions.MaxFunction

All Implemented Interfaces:

java.io.Serializable, Function, FunctionFactory, AggregateFunction, ConcreteFunction, Selectable

public class MaxFunction
extends ComparableAggregateFunction
implements AggregateFunction, FunctionFactory

Version:

$Revision: 1.10 $ $Date: 2005/08/24 00:41:52 $

See Also:

Serialized Form

Field Summary

Fields inherited from class org.axiondb.BaseSelectable

_hash

Constructor Summary

Constructors

Constructor and Description
MaxFunction()

Method Summary

Modifier and Type	Method and Description
protected java.lang.Comparable	evaluate(java.lang.Comparable src, java.lang.Comparable val)
ConcreteFunction	makeNewInstance()
protected void	setDistinct()

Methods inherited from class org.axiondb.functions.ComparableAggregateFunction

evaluate, getDataType

Methods inherited from class org.axiondb.functions.BaseAggregateFunction

acceptable, evaluate, isDistinct, isValid, setDistinct

Methods inherited from class org.axiondb.functions.BaseFunction

addArgument, getArgument, getArgumentCount, setArgument, setVariableContext, toString

Methods inherited from class org.axiondb.BaseSelectable

getAlias, getLabel, getName, setAlias, setName

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.axiondb.functions.AggregateFunction

evaluate

Methods inherited from interface org.axiondb.functions.ConcreteFunction

isValid

Methods inherited from interface org.axiondb.Function

addArgument, getAlias, getArgument, getArgumentCount, getName, setAlias, setArgument

Methods inherited from interface org.axiondb.Selectable

evaluate, getDataType, getLabel, setVariableContext

Constructor Detail

MaxFunction

public MaxFunction()

Method Detail

makeNewInstance

public ConcreteFunction makeNewInstance()

Specified by:

makeNewInstance in interface FunctionFactory

setDistinct

protected void setDistinct()
                    throws AxionException

Overrides:

setDistinct in class BaseAggregateFunction

Throws:

AxionException

evaluate

protected java.lang.Comparable evaluate(java.lang.Comparable src,
                                        java.lang.Comparable val)

Specified by:

evaluate in class ComparableAggregateFunction