// ////////////////////////////////////
// DbRefreshListener SUPPORT
//
// Overridden
public void refreshAfterDbUpdate(DbUpdateEvent evt) throws DbException {
if (evt.metaField == DbObject.fComponents) { // add, remove, or move to
// another parent
if (evt.neighbor instanceof DbGraphicalObjectI) // optimization:
// discard
// immediately the
// graphical objects
return;
if (evt.op == Db.REMOVE_FROM_RELN) {
// DbObject removed or with a new parent: remove the node from
// its old parent if loaded.
DynamicNode node = getDynamicNode(evt.neighbor, Db.OLD_VALUE, false);
if (node != null) removeNode(node);
} else if (evt.op == Db.ADD_TO_RELN) {
// DbObject added or with a new parent: if its new parent has
// its chidren loaded,
// add a node for the new child.
getDynamicNode(evt.neighbor, false);
} else { // Db.REINSERT_IN_RELN
DynamicNode node = getDynamicNode(evt.neighbor, false);
if ((node != null && !childrenAreSorted(evt.dbo))
|| (node != null && !node.getGroupParams().sorted)) {
DynamicNode parentNode = (DynamicNode) node.getParent();
updateInsertIndexInChildrenOfNode(parentNode);
removeNodeFromParent(node);
int index = getInsertionIndex(evt.dbo, evt.neighbor, parentNode, node);
insertNodeInto(node, parentNode, index);
}
}
}
// name refresh
else if (evt.metaField == DbSemanticalObject.fName || tooltipsFields.contains(evt.metaField)) {
updateNode(evt.dbo);
}
}
public Explorer() {
super(new DynamicNode(ROOT));
PropertiesSet preferences = PropertiesManager.getPreferencePropertiesSet();
if (preferences != null) {
preferences.addPrefixPropertyChangeListener(
DisplayToolTipsOptionGroup.class,
DisplayToolTipsOptionGroup.TOOLTIPS_FIELD_VISIBILITY_PREFIX,
new PreferencesListener());
Db.addDbListener(dbslistener);
tooltipsFields.addAll(Arrays.asList(DisplayToolTipsOptionGroup.getAvailableMetaFields()));
}
}
protected final void loadChildren(DynamicNode node) throws DbException {
if (node.hasLoaded() || node.isLeaf()) return;
node.setHasLoaded();
Object userObject = node.getUserObject();
if (userObject == ROOT) return;
SrVector children = new SrVector(10);
boolean isSorted = true;
DbObject dbParent = null;
if (userObject == DB_RAM) {
Db[] dbs = Db.getDbs();
for (int i = 0; i < dbs.length; i++) {
if (dbs[i] instanceof DbRAM) insertProjects(children, dbs[i]);
}
} else if (userObject instanceof Db) {
insertProjects(children, (Db) userObject);
} else {
dbParent = (DbObject) userObject;
dbParent.getDb().beginTrans(Db.READ_TRANS);
insertComponents(children, dbParent);
isSorted = childrenAreSorted(dbParent);
dbParent.getDb().commitTrans();
}
if (isSorted) {
children.sort(getComparator(dbParent));
}
ArrayList groupNodeList = new ArrayList();
DynamicNode groupNode = null;
Enumeration enumeration = children.elements();
while (enumeration.hasMoreElements()) {
DynamicNode childNode = (DynamicNode) enumeration.nextElement();
GroupParams group = childNode.getGroupParams();
if (group.name == null) {
node.add(childNode);
} else {
if (groupNode == null) {
groupNode = createGroupNode(group);
node.add(groupNode);
groupNodeList.add(groupNode);
} else if (!groupNode.toString().equals(group.name)) {
boolean groupFound = false;
for (int i = 0; i < groupNodeList.size(); i++) {
groupNode = (DynamicNode) groupNodeList.get(i);
if (groupNode.toString().equals(group.name)) {
groupFound = true;
break;
}
}
if (!groupFound) {
groupNode = createGroupNode(group);
node.add(groupNode);
groupNodeList.add(groupNode);
}
}
groupNode.add(childNode);
}
}
groupNodeList.clear();
}