org.axiondb.functions

Class DateAddFunction

public class DateAddFunction extends BaseFunction implements ScalarFunction, FunctionFactory

Syntax: DateAdd(interval_type, interval, timestamp)

Version: $Revision: 1.12 $ $Date: 2005/05/02 22:28:41 $

Author: Rupesh Ramachandran Ritesh Adval

Constructor Summary
DateAddFunction()
Creates a new instance of Class
Method Summary
Objectevaluate(RowDecorator row)
Returns new Timestamp which is (timestamp + interval) where interval is integer units of interval_type.
DataTypegetDataType()
booleanisValid()
ConcreteFunctionmakeNewInstance()

Constructor Detail

DateAddFunction

public DateAddFunction()
Creates a new instance of Class

Method Detail

evaluate

public Object evaluate(RowDecorator row)
Returns new Timestamp which is (timestamp + interval) where interval is integer units of interval_type. Valid interval types are {day, month, year, second, millisecond, minute, hour, week, quarter}

getDataType

public DataType getDataType()
DataType

isValid

public boolean isValid()

See Also: BaseFunction

makeNewInstance

public ConcreteFunction makeNewInstance()