private TemporalBoundEditOperation createPeriodicTemporalConstraintOperation(
EPlanElement planElement, Amount<Duration> offset, IUndoContext undoContext) {
ConstraintsMember facet = planElement.getMember(ConstraintsMember.class, true);
Set<PeriodicTemporalConstraint> oldConstraints = getRelevantConstraints(facet);
PeriodicTemporalConstraint newConstraint = null;
for (PeriodicTemporalConstraint oldConstraint : oldConstraints) {
Amount<Duration> time = getRelevantPartOfConstraint(oldConstraint);
if (time.compareTo(offset) == 0) {
return null; // same as an existing pin
}
}
newConstraint = createPeriodicTemporalConstraint(planElement, offset);
TemporalBoundEditOperation operation =
new TemporalBoundEditOperation(
getEarliestOrLatestName(), planElement, oldConstraints, newConstraint);
if (undoContext != null) {
operation.addContext(undoContext);
}
operation.addContext(undoContext);
return operation;
}
