wt.rule.algorithm
Class StringConstant

java.lang.Object
  wt.rule.algorithm.StringConstant

All Implemented Interfaces:

RuleAlgorithm

public class StringConstant

extends Object

implements RuleAlgorithm

An very simple algorithm that takes a single String argument and returns it unmodified.

Supported API: false

Extendable: false

Field Summary

private static String	CLASSNAME
private static String	RESOURCE

Constructor Summary

StringConstant()

Method Summary

Object	calculate(Object[] args, WTContainerRef container) Execute the algorithm using the specified arguments.
void	validateArgs(String[] args) Validate the arguments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

CLASSNAME

private static final String CLASSNAME

Constructor Detail

StringConstant

public StringConstant()

Method Detail

calculate

public Object calculate(Object[] args,
                        WTContainerRef container)
                 throws WTException

Execute the algorithm using the specified arguments. Return the result.

Supported API: false

Specified by:

calculate in interface RuleAlgorithm

Parameters:

args - the arguments for the algorithm

container - the container to use for object lookups

Returns:

Object

Throws:

WTException

validateArgs

public void validateArgs(String[] args)
                  throws InvalidAlgorithmArgumentException

Validate the arguments. Throw an InvalidAlgorithmArgumentException if any of the arguments are invalid.

Supported API: false

Specified by:

validateArgs in interface RuleAlgorithm

Parameters:

args - the string args from the XML

Throws:

InvalidAlgorithmArgumentException