@Override
public boolean instantiateTo(int value, ICause cause, boolean informCause)
throws ContradictionException {
if (informCause) {
cause = Cause.Null;
}
if (this.instantiated()) {
if (value != this.getValue()) {
this.contradiction(cause, MSG_INST);
}
return false;
} else if (contains(value)) {
// todo: delta
this.LB.set(value);
this.UB.set(value);
this.SIZE.set(1);
A.updateUpperBound(value, this, false);
B.updateUpperBound(value, this, false);
if (!A.contains(value)) {
B.instantiateTo(value, this, false);
}
if (!B.contains(value)) {
A.instantiateTo(value, this, false);
}
this.notifyPropagators(EventType.INSTANTIATE, cause);
return true;
} else {
this.contradiction(cause, MSG_UNKNOWN);
return false;
}
}
@Override
public boolean contains(int value) {
return A.contains(value) || B.contains(value);
}