org.axiondb.functions

Class ConcatFunction

public class ConcatFunction extends BaseFunction implements ScalarFunction, FunctionFactory

CONCAT(string [, string]*): concatenates one or more strings.

Evaluates to NULL if any of the arguments are null.

Version: $Revision: 1.7 $ $Date: 2005/12/20 18:32:28 $

Author: Rodney Waldhoff

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

Constructor Detail

ConcatFunction

public ConcatFunction()

Method Detail

evaluate

public Object evaluate(RowDecorator row)

getDataType

public DataType getDataType()
StringType

isValid

public boolean isValid()

makeNewInstance

public ConcreteFunction makeNewInstance()