org.axiondb.functions

Class ExistsFunction

public class ExistsFunction extends BaseFunction implements ScalarFunction, FunctionFactory

Version: $Revision: 1.5 $ $Date: 2005/03/01 22:58:42 $

Author: Rahul Dwivedi Ahimanikya Satapathy

Constructor Summary
ExistsFunction()
Method Summary
Objectevaluate(RowDecorator row)
DataTypegetDataType()
booleanisValid()
ConcreteFunctionmakeNewInstance()

Constructor Detail

ExistsFunction

public ExistsFunction()

Method Detail

evaluate

public Object evaluate(RowDecorator row)

getDataType

public DataType getDataType()

isValid

public boolean isValid()

makeNewInstance

public ConcreteFunction makeNewInstance()