code: @Override
  	public EClass getDensityCollection() {
  		if (densityCollectionEClass == null) {
  			densityCollectionEClass = (EClass) EPackage.Registry.INSTANCE.getEPackage(StorePackage.eNS_URI).getEClassifiers().get(120);
  		}
  		return densityCollectionEClass;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated