/**
* Private constructor.
*/
private ClassElement() {
mainCompartment = new Compartment();
attributesCompartment = new Compartment();
operationsCompartment = new Compartment();
mainLabel = new SimpleLabel();
mainLabel.setSource(this);
mainCompartment.addLabel(mainLabel);
mainCompartment.setParent(this);
attributesCompartment.setParent(this);