/**
* Posts a constraints in the problem. If it has ever been posted (but deactivated), it is only
* reactivated and repropagated.
*
* @param constraint The constraint to post.
*/
public void post(SConstraint constraint) {
if (constraint instanceof PalmSConstraint) {
PalmSConstraint pconstraint = (PalmSConstraint) constraint;
PalmConstraintPlugin pi = (PalmConstraintPlugin) pconstraint.getPlugIn();
if (!(pi.isEverConnected())) {
int idx;
constraints.staticAdd((Propagator) constraint);
idx = this.constraints.size() - 1;
pi.setConstraintIdx(idx);
pconstraint.addListener(false);
ConstraintEvent event = (ConstraintEvent) pconstraint.getEvent();
propagationEngine.registerEvent(event);
propagationEngine.postConstAwake(pconstraint, true);
} else {
logger.fine("The constraint " + constraint + " is reactivated.");
this.propagationEngine.postConstAwake(pconstraint, true);
pconstraint.setActive();
}
if (pi.isDepending()) pi.setDependance();
} else {
throw new Error("Impossible to post non-Palm constraints to a Palm problem");
}
}
