public boolean addAccess(Accesses aAccess) { boolean wasAdded = false; if (accesses.contains(aAccess)) { return false; } if (accesses.contains(aAccess)) { return false; } if (accesses.contains(aAccess)) { return false; } if (accesses.contains(aAccess)) { return false; } BehaviouralElement existingBehaviouralElement = aAccess.getBehaviouralElement(); boolean isNewBehaviouralElement = existingBehaviouralElement != null && !this.equals(existingBehaviouralElement); if (isNewBehaviouralElement) { aAccess.setBehaviouralElement(this); } else { accesses.add(aAccess); } wasAdded = true; return wasAdded; }