Updating server data html without refresh
This process takes place inside the managed bean (see the Bean layer of Figure 2) and can be divided into two sub-processes: updating the data model and creating GUI elements.This sub-process is invoked by the method is used to reorganize the inventory to ensure that books have been assigned to the right categories.Refreshing the data source will update any new or changed fields. Refreshing an extract will query the data source the extract was created from and rebuild the extract.This process might take some time, depending upon the size of the extract. When connected to a Published Data Source, the data source can be either a live connection or an extract.
The poll results and the real-time trading data are dynamic elements that are unknown until run time, but elements that should be added or updated when the server side sends a signal. A previous developer Works article, "Craft Ajax applications using JSF with CSS and Java Script, Part 2: Dynamic JSF forms" explains how to hide and display optional JSF components without refreshing a Web page.If the underlying data changes—for example, if new fields or rows are added, data values or field names are changed, or data is deleted, Tableau will reflect those changes the next time you connect to the data source.However, because Tableau Desktop queries the data and does not import the data, you can immediately update Tableau to reflect the data modifications without disconnecting, provided the changes have been saved in the underlying data first.However, you can't use the method described in that article to solve this problem.That method requires that you identify all JSF components and write them into your JSF pages.