There are a number of objects that get placed in a "Context" that is used by the particular dispatcher handling the template for a requested flavor. A concrete instance of BlojsomDispatcher will use this "Context" and make the objects in it available, as appropriate, for the particular presentation technology. For example, in the JSPDispatcher, the objects from this "Context" are placed on the request using the setAttribute method.

However, you as a user should be aware of the name and type of objects that are available in the "Context". You can see examples of how they are accessed by looking at the html.jsp (JSP page for the html flavor) and html.vm (Velocity template for the html flavor).