code: function UMLRoleBindingView() {
          UMLGeneralEdgeView.apply(this, arguments);
          this.tailEndStyle = Core.ES_FLAT;
          this.headEndStyle = Core.ES_STICK_ARROW;
          this.lineMode = Core.LM_DOT;
  
          /** @member {EdgeLabelView} */
          this.roleNameLabel = new EdgeLabelView();
          this.roleNameLabel.hostEdge = this;
          this.roleNameLabel.edgePosition = Core.EP_HEAD;
          this.roleNameLabel.alpha = -Math.PI / 6;
          this.roleNameLabel.distance = 30;
          this.addSubView(this.roleNameLabel);
      }
docs: UMLRoleBindingView
  @constructor
  @extends UMLGeneralEdgeView