public boolean isLeaf() {
TreeRowKey rowKey = (TreeRowKey) getRowKey();
T treeNode = locateTreeNode(rowKey);
if (treeNode != null && !nodeAdaptor.isLeaf(treeNode)) {
return false;
}
treeNode = treeDataModel.locateTreeNode(rowKey);
if (treeNode != null) {
return nodeAdaptor.isLeaf(treeNode);
}
return false;
}
public void walk(
FacesContext context,
final DataVisitor dataVisitor,
Range range,
Object rowKey,
Object argument,
boolean last)
throws IOException {
T cachedTreeNode = locateTreeNode((TreeRowKey) rowKey);
T treeNode = treeDataModel.locateTreeNode((TreeRowKey) rowKey);
if (treeNode != null) {
if (cachedTreeNode == null
|| (nodeAdaptor.isLeaf(cachedTreeNode) && !nodeAdaptor.isLeaf(treeNode))) {
// fill cache
treeDataModel.walk(context, new CacheFillingVisitor(), range, rowKey, argument, last);
}
super.walk(context, dataVisitor, range, rowKey, argument, last);
}
}