Is this Object Framework okay?

Hello, I work on slick2d and this is my framework. There is an abstract class called Object, which also has AdvancedObject, which is just Object with a few extras. I have an update and render method in it. Here is the player, who is an advancedobject: http://www.java-gaming.org/?action=pastebin&id=594

There is a level class which has 2 sub components: A Camera(Renders and updates everything in sight) and a tilemap, which reads off of a png to get a tilemap based off of the r, g, and b values. Here is level : http://www.java-gaming.org/?action=pastebin&id=595, Camera : http://www.java-gaming.org/?action=pastebin&id=596, and Tilemap : http://www.java-gaming.org/?action=pastebin&id=597

IS THIS INEFFICIENT?!?
SHOULD I USE ARTEMIS?