org.drools.examples.sudoku
Class SetOfNine

java.lang.Object
  org.drools.examples.sudoku.SetOfNine

Direct Known Subclasses:

Cell, CellGroup

public abstract class SetOfNine
extends Object

Abstract base class for the three types of cell groups of nine cells.

Constructor Summary

protected

SetOfNine()

Method Summary

void	blockExcept(Integer... values) Redefine the set of acceptable values for this cell.
void	blockValue(Integer i) Remove an Integer from the values still to be assigned to some cell of this group.
Set<Integer>	getFree() Returns the set of Integers that still need to be assigned to some cell of this group.
int	getFreeCount() Returns the number of Integers that still need to be assigned to some cell of this group.
Integer	getFreeValue() Returns the first (only) permissible Integer value.

Methods inherited from class java.lang.Object

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

Constructor Detail

SetOfNine

protected SetOfNine()

Method Detail

blockExcept

public void blockExcept(Integer... values)

Redefine the set of acceptable values for this cell.

Parameters:

values - the Integer objects representing the new set of acceptable values.

blockValue

public void blockValue(Integer i)

Remove an Integer from the values still to be assigned to some cell of this group.

Parameters:

i - an Integer object

getFree

public Set<Integer> getFree()

Returns the set of Integers that still need to be assigned to some cell of this group.

Returns:

a Set of Integer objects.

getFreeCount

public int getFreeCount()

Returns the number of Integers that still need to be assigned to some cell of this group.

Returns:

an int value

getFreeValue

public Integer getFreeValue()

Returns the first (only) permissible Integer value.

Returns:

an Integer object