Package placement

Class Constraint

java.lang.Object

placement.Constraint

All Implemented Interfaces:

Comparable<Constraint>

public class Constraint
extends Object
implements Comparable<Constraint>

Author:

dwyer_2 To change the template for this generated type comment go to Window - Preferences - Java - Code Style - Code Templates

Field Summary

Fields

Modifier and Type	Field	Description
Color	colour
double	lagrangeMultiplier

Method Summary

Modifier and Type	Method	Description
int	compareTo(Constraint c)	If the constraint of the argument is more violated than this then it is considered greater (and we return 1).
void	delete()	remove all traces of c
boolean	isTight()
Variable	neighbour(Variable v)
boolean	sameContainers(Constraint c)
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

colour

public Color colour

lagrangeMultiplier

public double lagrangeMultiplier

Method Details

toString

public String toString()

Overrides:

toString in class Object

neighbour

public Variable neighbour(Variable v)

Parameters:

v -

Returns:

neighbour of v in this constraint

sameContainers

public boolean sameContainers(Constraint c)

Parameters:

c - another constraint

Returns:

true if c is between the same blocks as this

delete

public void delete()

remove all traces of c

isTight

public boolean isTight()

compareTo

public int compareTo(Constraint c)

If the constraint of the argument is more violated than this then it is considered greater (and we return 1). NOTE: constraints within the same block are treated as having infinite violated amount. This is a hack so that the pairing heaps used to manage in and out constraints are not messed up when they contain internal constraints (which do not move relative to the block)

Specified by:

compareTo in interface Comparable<Constraint>

Parameters:

c - Constraint to compare against

Returns:

1 if c more violated than this, 0 if equal, -1 if less than