jeops.conflict
Class DefaultConflictSet

java.lang.Object
  |
  +--jeops.conflict.AbstractConflictSet
        |
        +--jeops.conflict.DefaultConflictSet

Direct Known Subclasses:

NaturalConflictSet

public class DefaultConflictSet

extends AbstractConflictSet

A default conflict set, whose conflict resolution policy is not specified. In other words, any of the instantiations can be returned.

Version:

0.01 29 Mar 2000

Author:

Carlos Figueira Filho (csff@di.ufpe.br)

Constructor Summary

DefaultConflictSet()
Class constructor.

Method Summary

void	flush() Removes all rules from this conflict set, as well as cleaning any history that might have been stored.
java.util.Vector	getModifiedObjects(java.lang.Object obj) Returns all objects that were modified in response to a modification in the given object.
void	insertElement(ConflictSetElement element) Inserts a rule instantiation.
boolean	isEmpty() Checks whether this set has any elements.
ConflictSetElement	nextElement() Returns the next rule to be fired.
void	removeElementsWith(java.lang.Object obj) Remove all elements from this set that uses the given object in its instantiations.

Methods inherited from class jeops.conflict.AbstractConflictSet

addInternalConflictSetListener, getModifiedObjects_1D, getModifiedObjects_2D, removeInternalConflictSetListener

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultConflictSet

public DefaultConflictSet()

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.

insertElement

public void insertElement(ConflictSetElement element)

Inserts a rule instantiation.

Parameters:

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

isEmpty

public boolean isEmpty()

Checks whether this set has any elements.

Returns:

false if there is at least one firable rule in this set; true otherwise.

nextElement

public ConflictSetElement nextElement()
                               throws NoMoreElementsException

Returns the next rule to be fired.

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.

removeElementsWith

public void removeElementsWith(java.lang.Object obj)

Remove all elements from this set that uses the given object in its instantiations.

Parameters:

obj - the given object

getModifiedObjects

public java.util.Vector getModifiedObjects(java.lang.Object obj)

Returns all objects that were modified in response to a modification in the given object.

Parameters:

obj - the given object

Returns:

a vector with all objects that must be declared as modified due to the modification in this one.