return null;
}
public boolean isKeyExist(int id, int db, String key) {
IsKeyExist command = new IsKeyExist(id, db, key);
command.execute();
return command.isExist();
}
public Node findNext(Node findNode, NodeType searchFrom, int id, int db, String container, List<NodeType> searchNodeType, String pattern, boolean forward){
Set<Node> nodes = find(searchFrom, id, db, container, searchNodeType, pattern, forward);