Most of the time portals use very complicated urls, however it is possible to setup entry points in the portal that follow simple patterns.
Each portal container can contain multiple portals and within a given portal, windows are organized in pages, a page simply being a collection of windows associated to a name.
Before reading this chapter you must know how to define a page and a portal, you can refer to the chapter about XML descriptors to have a better understanding of those notions.
Each portal container can contains multiple portals, also there is one special portal which is the default portal, i.e the one used when no portal is specified in particular.
It is possible to have multiple pages per portal. As for portal there is a default page for a given portal. Once the portal has been selected, then a page must be used and all the windows present in that page will be rendered. The page selection mechanism is the following.
The CMSPortlet delivers content transparently, without modifying the url displayed. However, if you wish to deliver binary content (gif, jpeg, pdf, zip, etc...), it is desirable to display this content outside of the confines of the portal.