org.jscience.computing.ai.expertsystem.conflict
Class NaturalConflictSet

java.lang.Object
  org.jscience.computing.ai.expertsystem.conflict.AbstractConflictSet
      org.jscience.computing.ai.expertsystem.conflict.DefaultConflictSet
          org.jscience.computing.ai.expertsystem.conflict.NaturalConflictSet

All Implemented Interfaces:

ConflictSet

public class NaturalConflictSet
extends DefaultConflictSet

A conflict set whose conflict resolution policy specifies that no rule can be fired more than once with the same objects. This conflict set requires a large amount of memory to store the history of rule firing, so it must be used with care. It also tends to get inefficient when the history grows.

Field Summary

Fields inherited from class org.jscience.computing.ai.expertsystem.conflict.AbstractConflictSet

debug, listeners

Constructor Summary

NaturalConflictSet()
Class constructor.

Method Summary

void	flush() Removes all rules from this conflict set, as well as cleaning any history that might have been stored.
void	insertElement(ConflictSetElement element) Inserts a rule instantiation.
ConflictSetElement	nextElement() Returns the next rule to be fired.

Methods inherited from class org.jscience.computing.ai.expertsystem.conflict.DefaultConflictSet

isEmpty, removeElementsWith

Methods inherited from class org.jscience.computing.ai.expertsystem.conflict.AbstractConflictSet

addInternalConflictSetListener, elementAdded, elementRemoved, removeElementsWith_1D, removeElementsWith_2D, removeInternalConflictSetListener

Methods inherited from class java.lang.Object

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

Constructor Detail

NaturalConflictSet

public NaturalConflictSet()

Class constructor.

Method Detail

flush

public void flush()

Removes all rules from this conflict set, as well as cleaning any history that might have been stored.

Specified by:

flush in interface ConflictSet

Overrides:

flush in class DefaultConflictSet

insertElement

public void insertElement(ConflictSetElement element)

Inserts a rule instantiation.

Specified by:

insertElement in interface ConflictSet

Overrides:

insertElement in class DefaultConflictSet

Parameters:

element - a conflict set element that holds the rule index as well as the objects bound to the rule declarations.

nextElement

public ConflictSetElement nextElement()
                               throws NoMoreElementsException

Returns the next rule to be fired.

Specified by:

nextElement in interface ConflictSet

Overrides:

nextElement in class DefaultConflictSet

Returns:

a conflict set element among those that have been inserted in this object, according to the policy defined in the conflict set.

Throws:

NoMoreElementsException - if there aren't any more elements in this conflict set.