org.axiondb

Interface Function

All Superinterfaces:

Selectable, java.io.Serializable

All Known Subinterfaces:

AggregateFunction, ConcreteFunction, ScalarFunction

All Known Implementing Classes:

ABSFunction, AddFunction, AndFunction, ArithmeticFunction, AsciiFunction, AverageFunction, Base64DecodeFunction, Base64EncodeFunction, BaseAggregateFunction, BaseBooleanBranchFunction, BaseFunction, BaseRegExpFunction, BitAndFunction, BitOrFunction, CastAsFunction, CharFunction, CharToDateFunction, CoalesceFunction, ComparableAggregateFunction, ComparisonFunction, ConcatFunction, ContainsFunction, CountFunction, DateAddFunction, DateDiffFunction, DatePartFunction, DateToCharFunction, DifferenceFunction, DivideFunction, EqualFunction, ExistsFunction, FunctionIdentifier, GreaterThanFunction, GreaterThanOrEqualFunction, HexFunction, IfThenFunction, InFunction, InStringFunction, IsNotNullFunction, IsNullFunction, IsValidDateTimeFunction, LengthFunction, LessThanFunction, LessThanOrEqualFunction, LikeToRegexpFunction, Log10Function, LowerFunction, LPadFunction, LTrimFunction, MatchesFunction, MaxFunction, MinFunction, ModFunction, MultiplyFunction, NotEqualFunction, NotFunction, NotInFunction, NowFunction, NullIfFunction, OrFunction, ReplaceFunction, RoundFunction, RowNumFunction, RPadFunction, RTrimFunction, SignFunction, SoundexFunction, SoundsLikeFunction, SpaceFunction, SubstringFunction, SubtractFunction, SumFunction, TrimFunction, TruncateFunction, UpperFunction

public interface Function
extends Selectable

A database function.

Version:

$Revision: 1.11 $ $Date: 2004/08/27 03:21:21 $

Method Summary

Modifier and Type	Method and Description
void	addArgument(Selectable arg) Append the given Selectableto my argument list.
java.lang.String	getAlias() Returns the Alias name of this function.
Selectable	getArgument(int i) Returns the Selectableat the given index.
int	getArgumentCount() Returns the number of arguments in my argument list.
java.lang.String	getName() Returns the cannonical name of this function.
void	setAlias(java.lang.String alias) Set the Alias name of this function.
void	setArgument(int i, Selectable arg)

Methods inherited from interface org.axiondb.Selectable

evaluate, getDataType, getLabel, setVariableContext

Method Detail

addArgument

void addArgument(Selectable arg)

Append the given Selectableto my argument list.

getAlias

java.lang.String getAlias()

Returns the Alias name of this function.

Specified by:

getAlias in interface Selectable

getArgument

Selectable getArgument(int i)
                throws java.lang.IndexOutOfBoundsException

Returns the Selectableat the given index.

Throws:

java.lang.IndexOutOfBoundsException - if there is no argument at the given index

getArgumentCount

int getArgumentCount()

Returns the number of arguments in my argument list.

getName

java.lang.String getName()

Returns the cannonical name of this function.

Specified by:

getName in interface Selectable

setAlias

void setAlias(java.lang.String alias)

Set the Alias name of this function.

setArgument

void setArgument(int i,
                 Selectable arg)