org.axiondb.functions
Class FunctionIdentifier

java.lang.Object
  extended by org.axiondb.BaseSelectable
      extended by org.axiondb.functions.BaseFunction
          extended by org.axiondb.functions.FunctionIdentifier
All Implemented Interfaces:
Serializable, Function, ConcreteFunction, Selectable

public class FunctionIdentifier
extends BaseFunction
implements Function

A Selectable representing an unresolved Function.

Version:
$Revision: 1.14 $ $Date: 2005/05/02 22:28:41 $
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.axiondb.BaseSelectable
_hash
 
Constructor Summary
FunctionIdentifier(String name)
           
FunctionIdentifier(String name, List args)
           
 
Method Summary
 Object evaluate(RowDecorator row)
           
 DataType getDataType()
           
 boolean isValid()
           
 
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.Function
addArgument, getAlias, getArgument, getArgumentCount, getName, setAlias, setArgument
 
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

evaluate

public Object evaluate(RowDecorator row)
Specified by:
evaluate in interface Selectable

getDataType

public DataType getDataType()
Specified by:
getDataType in interface Selectable
Specified by:
getDataType in class BaseFunction

isValid

public boolean isValid()
Specified by:
isValid in interface ConcreteFunction
Specified by:
isValid in class BaseFunction