@Override
 protected void createEditPolicies() {
   super.createEditPolicies();
   installEditPolicy(
       EditPolicy.CONNECTION_BENDPOINTS_ROLE, new OPPProceduralLinkBendpointEditPolicy());
   installEditPolicy(EditPolicy.CONNECTION_ROLE, new OPPDeleteLinkEditPolicy());
   installEditPolicy(EditPolicy.DIRECT_EDIT_ROLE, new OPPNamedEntityDirectEditPolicy());
   installEditPolicy(
       OPPProceduralLinkEditPolicy.PROCEDURAL_LINK_EDIT_ROLE,
       new OPPProceduralLinkEditPolicy(new OPPProceduralLinkValidator()));
 }