org.axiondb.functions
Class FunctionIdentifier

java.lang.Object
  org.axiondb.BaseSelectable
      org.axiondb.functions.FunctionIdentifier

All Implemented Interfaces:

Function, Selectable, Serializable

public class FunctionIdentifier

extends BaseSelectable

implements Function

A Selectable representing an unresolved Function.

Version:

$Revision: 1.9 $ $Date: 2004/08/11 18:02:21 $

See Also:

Serialized Form

Constructor Summary

FunctionIdentifier(String name)

FunctionIdentifier(String name, List args)

Method Summary

void	addArgument(Selectable arg) Append the given Selectableto my argument list.
Object	evaluate(RowDecorator row)
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.
DataType	getDataType()
String	getName() Returns the cannonical name of this function.
void	setAlias(String alias) Set the Alias name of this function.
void	setArgument(int i, Selectable arg)
void	setName(String name)
String	toString()

Methods inherited from class org.axiondb.BaseSelectable

getLabel, setVariableContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axiondb.Selectable

getLabel, setVariableContext

Constructor Detail

FunctionIdentifier

public FunctionIdentifier(String name)

FunctionIdentifier

public FunctionIdentifier(String name,
                          List args)

Method Detail

addArgument

public void addArgument(Selectable arg)

Description copied from interface: Function

Append the given Selectableto my argument list.

Specified by:

addArgument in interface Function

getAlias

public String getAlias()

Description copied from interface: Function

Returns the Alias name of this function.

Specified by:

getAlias in interface Function

setAlias

public void setAlias(String alias)

Description copied from interface: Function

Set the Alias name of this function.

Specified by:

setAlias in interface Function

getName

public String getName()

Description copied from interface: Function

Returns the cannonical name of this function.

Specified by:

getName in interface Function

setName

public void setName(String name)

getArgumentCount

public int getArgumentCount()

Description copied from interface: Function

Returns the number of arguments in my argument list.

Specified by:

getArgumentCount in interface Function

getArgument

public Selectable getArgument(int i)

Description copied from interface: Function

Returns the Selectableat the given index.

Specified by:

getArgument in interface Function

setArgument

public void setArgument(int i,
                        Selectable arg)

Specified by:

setArgument in interface Function

evaluate

public Object evaluate(RowDecorator row)

Specified by:

evaluate in interface Selectable

getDataType

public DataType getDataType()

Specified by:

getDataType in interface Selectable

toString

public String toString()