de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints
Class ParameterFlagGlobalConstraint<S,C extends S>

java.lang.Object
  de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.ParameterFlagGlobalConstraint<S,C>

Type Parameters:

C - Constraint type

S - Parameter type

All Implemented Interfaces:

GlobalParameterConstraint

public class ParameterFlagGlobalConstraint<S,C extends S>
extends Object
implements GlobalParameterConstraint

Global parameter constraint describing the dependency of a parameter ( Parameter) on a given flag (Flag). Depending on the status of the flag the parameter is tested for keeping its constraints or not.

Field Summary

private List<ParameterConstraint<S>>	cons List of parameter constraints.
private Flag	flag Flag the checking of the parameter constraints is dependent on.
private boolean	flagConstraint Indicates at which status of the flag the parameter is to be checked.
private Parameter<S,C>	param Parameter possibly to be checked.

Constructor Summary

ParameterFlagGlobalConstraint(Parameter<S,C> p, List<ParameterConstraint<S>> c, Flag f, boolean flagConstraint)
Constructs a global parameter constraint specifying that the testing of the parameter given for keeping the parameter constraints given is dependent on the status of the flag given.

Method Summary

String	getDescription() Returns a description of this global constraint.
void	test() Checks the parameter for its parameter constraints dependent on the status of the given flag.

Methods inherited from class java.lang.Object

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

Field Detail

param

private Parameter<S,C extends S> param

Parameter possibly to be checked.

flag

private Flag flag

Flag the checking of the parameter constraints is dependent on.

flagConstraint

private boolean flagConstraint

Indicates at which status of the flag the parameter is to be checked.

cons

private List<ParameterConstraint<S>> cons

List of parameter constraints.

Constructor Detail

ParameterFlagGlobalConstraint

public ParameterFlagGlobalConstraint(Parameter<S,C> p,
                                     List<ParameterConstraint<S>> c,
                                     Flag f,
                                     boolean flagConstraint)

Constructs a global parameter constraint specifying that the testing of the parameter given for keeping the parameter constraints given is dependent on the status of the flag given.

Parameters:

p - parameter possibly to be checked

c - a list of parameter constraints, if the value is null, the parameter is just tested if it is set.

f - flag controlling the checking of the parameter constraints

flagConstraint - indicates at which status of the flag the parameter is to be checked

Method Detail

test

public void test()
          throws ParameterException

Checks the parameter for its parameter constraints dependent on the status of the given flag. If a parameter constraint is breached 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