Dynamic UI management

Dynamic UI management deals with a special use case of the dynamic addition and removal of dynamic pages and portlets (called dynamic user interfaces or dynamic UI) based on user interactions. The layout of a dynamic page is defined by a page definition, which is a static portal page acting as the master copy. Because of their dynamic nature, pages and portlets are not persisted in the portal database, and have a maximum lifetime of the user's session with the portal. They can also be closed prior to the end of the session, either programmatically or by the user.

You can use dynamic UI management to:

* Increase usability by keeping the number of pages in a portal, and number of portlets on a page, to a minimum.
Based on user interaction, you can pages and portlets to be displayed at the moment they are required, and removed when they become obsolete.

* Facilitate reuse of components.
Single pages and portlets can be parameterized with the current application context so that they seamlessly integrate with the calling application.

* Support multi-page applications.
An application can use multiple pages; for example, to implement a wizard dialog.

Closely related to dynamic UI management is the concept of page and portlet context passing. You can use this mechanism to dynamically launch pages or portlet that are parameterized with the current application context; therefore, a seamless integration with the portlet that created the dynamic UI can be achieved. The dynamic portlets will receive this dynamic UI context through property broker events when the dynamic page is launched. The dynamic UI programming model is closely aligned with the property broker model.

More details about the Dynamic UI model can be found in the infocenter.