public Link buildLink(Object fromInstance, Object toInstance) {
Link link = createLink();
LinkEnd le0 = createLinkEnd();
le0.setInstance((Instance) fromInstance);
LinkEnd le1 = createLinkEnd();
le1.setInstance((Instance) toInstance);
link.getConnection().add(le0);
link.getConnection().add(le1);
return link;
}
/**
* when a linkend is deleted, delete its Links.
*
* @param elem the element to be deleted
*/
void deleteLinkEnd(Object elem) {
if (!(elem instanceof LinkEnd)) {
throw new IllegalArgumentException("elem: " + elem);
}
Link link = ((LinkEnd) elem).getLink();
if (link != null
&& link.getConnection() != null
&& link.getConnection().size() == 2) { // binary link
modelImpl.getUmlFactory().delete(link);
}
}