public void gotoOther() {
Object target = getTarget();
if (target instanceof MAssociationEnd) {
MAssociationEnd end = (MAssociationEnd) target;
MAssociation assoc = end.getAssociation();
Collection connections = assoc.getConnections();
Iterator iter = connections.iterator();
Object other = null;
Object item = null;
//
// always go to the one before match or to end
//
while (iter.hasNext()) {
item = iter.next();
if (item == end) {
if (other != null) {
navigateTo(other);
return;
}
} else {
other = item;
}
}
//
// if previous end was the first, then navigate to the last
navigateTo(other);
}
}
/**
* Deletes the association end. If the associationend's owner (the association) has one
* associationend left after this delete, it is also deleted.
*/
public void removeElement() {
MAssociationEnd end = (MAssociationEnd) getTarget();
MAssociation assoc = end.getAssociation();
Collection ends = assoc.getConnections();
if (ends.size() > 2) {
Iterator it =
ProjectBrowser.TheInstance.getProject()
.findFigsForMember(end.getAssociation())
.iterator();
while (it.hasNext()) {
// should do here something if the association end is shown
}
UmlFactory.getFactory().delete(end);
navigateTo(assoc);
} else {
ProjectBrowser.TheInstance.setDetailsTarget(assoc);
ActionRemoveFromModel.SINGLETON.actionPerformed(new ActionEvent(this, 0, null));
}
}
protected MNamespace getDisplayNamespace(Object target) {
MNamespace ns = null;
if (target instanceof MAssociationEnd) {
MAssociationEnd end = (MAssociationEnd) target;
MAssociation assoc = end.getAssociation();
if (assoc != null) {
ns = assoc.getNamespace();
}
}
return ns;
}
/**
* Gets the associations between the classifiers from and to. Returns null if from or to is null
* or if there is no association between them.
*
* @param from
* @param to
* @return MAssociation
*/
public Collection getAssociations(MClassifier from, MClassifier to) {
Set ret = new HashSet();
if (from == null || to == null) return ret;
Iterator it = from.getAssociationEnds().iterator();
while (it.hasNext()) {
MAssociationEnd end = (MAssociationEnd) it.next();
MAssociation assoc = end.getAssociation();
Iterator it2 = assoc.getConnections().iterator();
while (it2.hasNext()) {
MAssociationEnd end2 = (MAssociationEnd) it2.next();
if (end2.getType() == to) {
ret.add(assoc);
}
}
}
return ret;
}
/**
* Gets all classifiers that are associated to the given classifier (have an association
* relationship with the classifier).
*
* @param classifier
* @return Collection
*/
public Collection getAssociatedClassifiers(MClassifier classifier) {
if (classifier == null) return new ArrayList();
List list = new ArrayList();
Iterator it = classifier.getAssociationEnds().iterator();
while (it.hasNext()) {
MAssociationEnd end = (MAssociationEnd) it.next();
MAssociation assoc = end.getAssociation();
Iterator it2 = assoc.getConnections().iterator();
while (it2.hasNext()) {
MAssociationEnd end2 = (MAssociationEnd) it2.next();
if (end2 != end) {
list.add(end2.getType());
}
}
}
return list;
}
public Enumeration gen(Object o) {
Vector res = new Vector();
if (!(o instanceof MClassifier)) return res.elements();
MClassifier cls = (MClassifier) o;
Vector ends = new Vector(cls.getAssociationEnds());
if (ends == null) return res.elements();
Iterator enum = ends.iterator();
while (enum.hasNext()) {
MAssociationEnd ae = (MAssociationEnd) enum.next();
if (MAggregationKind.COMPOSITE.equals(ae.getAggregation())) {
MAssociation asc = ae.getAssociation();
List conn = asc.getConnections();
if (conn == null || conn.size() != 2) continue;
Object otherEnd = (ae == conn.get(0)) ?
conn.get(1) : conn.get(0);
MClassifier componentClass = ((MAssociationEnd)otherEnd).getType();
res.add(componentClass);
}
}
return res.elements();
}
public Vector getChildren(Object parent) {
if (!(parent instanceof MClass)) return null;
Vector res = new Vector();
Vector ends = new Vector(((MClass)parent).getAssociationEnds());
if (ends == null) return null;
java.util.Enumeration enum = ends.elements();
while (enum.hasMoreElements()) {
MAssociationEnd ae = (MAssociationEnd) enum.nextElement();
MAssociation asc = ae.getAssociation();
Vector allEnds = new Vector( asc.getConnections());
MAssociationEnd otherEnd = null;
if (ae == allEnds.elementAt(0))
otherEnd = (MAssociationEnd) allEnds.elementAt(1);
if (ae == allEnds.elementAt(1))
otherEnd = (MAssociationEnd) allEnds.elementAt(0);
if (otherEnd == null) continue;
if (!otherEnd.isNavigable()) continue;
if (res.contains(otherEnd.getType())) continue;
res.addElement(otherEnd.getType());
// needs-more-work: handle n-way Associations
}
return res;
}
