org.axiondb.functions

Class DateDiffFunction

public class DateDiffFunction extends BaseFunction implements ScalarFunction, FunctionFactory

Syntax: DATEDIFF(interval_type, timestamp1, timestamp2)

Version: $Revision: 1.16 $ $Date: 2005/05/02 22:28:41 $

Author: Rupesh Ramachandran Ritesh Adval

Constructor Summary
	DateDiffFunction() Creates a new instance of Class

Method Summary
Object	evaluate(RowDecorator row) Returns integer difference (timestamp2 - timestamp1) in units of interval of type interval_type.
DataType	getDataType()
boolean	isValid()
ConcreteFunction	makeNewInstance()

Constructor Detail

DateDiffFunction

public DateDiffFunction()

Creates a new instance of Class

Method Detail

evaluate

public Object evaluate(RowDecorator row)

Returns integer difference (timestamp2 - timestamp1) in units of interval of type interval_type. Valid interval types are {day, month, year, second, millisecond, minute, hour, week, quarter}

getDataType

public DataType getDataType()

DataType

isValid

public boolean isValid()

makeNewInstance

public ConcreteFunction makeNewInstance()