retrieves the underlying node concode_field_sep Node node concode_elem_sep SimpleNodeTreeNodeAdapter parent concode_elem_sep List<TreeNode> children concode_field_sep int getChildCount concode_elem_sep void checkChildren concode_elem_sep TreeNode getChildAt concode_elem_sep TreeNode getParent concode_elem_sep int getIndex concode_elem_sep Enumeration<TreeNode> children concode_elem_sep boolean getAllowsChildren concode_elem_sep String toString concode_elem_sep boolean isLeaf