org.axiondb.functions
Class MatchesFunction

java.lang.Object
  org.axiondb.BaseSelectable
      org.axiondb.functions.BaseFunction
          org.axiondb.functions.MatchesFunction

All Implemented Interfaces:

ConcreteFunction, Function, FunctionFactory, ScalarFunction, Selectable, Serializable

public class MatchesFunction

extends BaseFunction

implements ScalarFunction, FunctionFactory

MATCHES(string, string): returns a boolean that indicates whether first string matches the regular expression represented by the second string

Version:

$Revision: 1.5 $ $Date: 2004/08/21 02:59:45 $

See Also:

Serialized Form

Field Summary

protected static DataType	ARG_TYPE
protected static DataType	RETURN_TYPE

Constructor Summary

MatchesFunction()

Method Summary

Object	evaluate(RowDecorator row)
DataType	getDataType()
boolean	isValid()
ConcreteFunction	makeNewInstance()

Methods inherited from class org.axiondb.functions.BaseFunction

addArgument, getAlias, getArgument, getArgumentCount, getLabel, getName, setAlias, setArgument, setName, setVariableContext, toString

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

Field Detail

ARG_TYPE

protected static final DataType ARG_TYPE

RETURN_TYPE

protected static final DataType RETURN_TYPE

Constructor Detail

MatchesFunction

public MatchesFunction()

Method Detail

makeNewInstance

public ConcreteFunction makeNewInstance()

Specified by:

makeNewInstance in interface FunctionFactory

getDataType

public DataType getDataType()

Specified by:

getDataType in interface Selectable

Specified by:

getDataType in class BaseFunction

evaluate

public Object evaluate(RowDecorator row)
                throws AxionException

Specified by:

evaluate in interface ScalarFunction

Throws:

AxionException

isValid

public boolean isValid()

Specified by:

isValid in interface ConcreteFunction

Specified by:

isValid in class BaseFunction