/* * Update of user tree for ordered menu nodes (favorites, create new list) * favorites @param menuIDs List<Integer> ordered list of menuIDs to put in * the tree @param menuTree MTree the tree to be reordered @return true if * updated */ private boolean updateUserTree(List<Integer> menuIDs, MTree menuTree) { CTreeNode root = menuTree.getRoot(); if (root != null) { Enumeration<?> nodes = root.preorderEnumeration(); while (nodes.hasMoreElements()) { CTreeNode nd = (CTreeNode) nodes.nextElement(); if (!menuIDs.contains(nd.getNode_ID())) { MTreeNodeMM node = null; if ((node = MTreeNodeMM.get(menuTree, nd.getNode_ID())) != null) { if (!node.delete(true)) return false; } } } } int seq = 0; for (int id : menuIDs) { MTreeNodeMM node = null; if ((node = MTreeNodeMM.get(menuTree, id)) == null) { node = new MTreeNodeMM(menuTree, id); } node.setSeqNo(++seq); if (!node.save()) return false; } return true; }