/** * Only load children as needed, so don't have to load OutlineItems that the user has not even * browsed to */ private void ensureChildrenLoaded() { if (!loadedChildren) { loadedChildren = true; int count = item.getSubItemCount(); for (int i = 0; i < count; i++) { OutlineItem child = item.getSubItem(i); OutlineItemTreeNode childTreeNode = new OutlineItemTreeNode(pageTree, child); add(childTreeNode); } } }