de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints
Class OnlyOneIsAllowedToBeSetGlobalConstraint

java.lang.Object
  de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.OnlyOneIsAllowedToBeSetGlobalConstraint

All Implemented Interfaces:

GlobalParameterConstraint

public class OnlyOneIsAllowedToBeSetGlobalConstraint
extends Object
implements GlobalParameterConstraint

Global parameter constraint specifying that only one parameter of a list of parameters (Parameter) is allowed to be set.

Field Summary

private List<Parameter<?,?>>

parameters List of parameters to be checked.

Constructor Summary

OnlyOneIsAllowedToBeSetGlobalConstraint(List<Parameter<?,?>> params)
Constructs a global parameter constraint for testing if only one parameter of a list of parameters is set.

Method Summary

String	getDescription() Returns a description of this global constraint.
void	test() Checks if only one parameter of a list of parameters is set.

Methods inherited from class java.lang.Object

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

Field Detail

parameters

private List<Parameter<?,?>> parameters

List of parameters to be checked.

Constructor Detail

OnlyOneIsAllowedToBeSetGlobalConstraint

public OnlyOneIsAllowedToBeSetGlobalConstraint(List<Parameter<?,?>> params)

Constructs a global parameter constraint for testing if only one parameter of a list of parameters is set.

Parameters:

params - list of parameters to be checked

Method Detail

test

public void test()
          throws ParameterException

Checks if only one parameter of a list of parameters is set. If not, a parameter exception is thrown.

Specified by:

test in interface GlobalParameterConstraint

Throws:

ParameterException - if the parameters don't satisfy the parameter constraint.

getDescription

public String getDescription()

Description copied from interface: GlobalParameterConstraint

Returns a description of this global constraint.

Specified by:

getDescription in interface GlobalParameterConstraint

Returns:

a description of this global constraint