public boolean isLeaf(Object node) {
if (node instanceof Entity) {
EntityCategory category = d_domain.getCategory(((Entity) node));
if (category != null) {
return d_domain.getCategoryContents(category).contains(node);
}
}
return false;
}
public TreePath getPathTo(Object node) {
if (d_root.equals(node)) {
return new TreePath(new Object[] {d_root});
} else if (d_domain.getCategories().contains(node)) {
return new TreePath(new Object[] {d_root, node});
} else if (isLeaf(node)) {
return new TreePath(new Object[] {d_root, d_domain.getCategory(((Entity) node)), node});
}
return null;
}