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

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

All Implemented Interfaces:

GlobalParameterConstraint

public class GlobalListSizeConstraint
extends Object
implements GlobalParameterConstraint

Represents a global parameter constraint for testing if the size of the list parameter (ListParameter) given is equal to the constraint size specified by the integer parameter (IntParameter) given.

Author:

Steffi Wanka

Field Summary

private IntParameter	length Integer parameter specifying the constraint list size.
private ListParameter<?>	list List parameter to be tested.

Constructor Summary

GlobalListSizeConstraint(ListParameter<?> v, IntParameter i)
Creates a List-Size global parameter constraint.

Method Summary

String	getDescription() Returns a description of this global constraint.
void	test() Checks is the size of the list parameter is equal to the constraint list size specified.

Methods inherited from class java.lang.Object

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

Field Detail

list

private ListParameter<?> list

List parameter to be tested.

length

private IntParameter length

Integer parameter specifying the constraint list size.

Constructor Detail

GlobalListSizeConstraint

public GlobalListSizeConstraint(ListParameter<?> v,
                                IntParameter i)

Creates a List-Size global parameter constraint.

That is, the size of the given list parameter hat to be equal to the constraint list size specified by the integer parameter given.

Parameters:

v - the list parameter to be tested.

i - integer parameter specifying the constraint list size.

Method Detail

test

public void test()
          throws ParameterException

Checks is the size of the list parameter is equal to the constraint list size specified. 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