Updating server data html without refresh
What if the dynamic elements cannot be identified until run time?At this time, JSF has no good solution to this problem.The application is a Web site for online book sales.The inventory information such as book categories and the number of books in each category is displayed in the Web home page (see Figure 1).A live connection sends queries to the database and updates the view depending on the results.However, the specific fields queried are defined when the connection is initially created.Selecting the tab will display whether the Published Data Source is a live connection or an extract.If the data source is an Extract, all refreshes of the extract are managed by Tableau Server and can only be refreshed by the server.
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.
So, how do you automatically update a Web page with dynamic elements?
Within this article, I'll describe the following solutions: To better explain my solution, I'll work with a single example throughout the entire article.
If you need to keep data published through Tableau Desktop fresh on the web, you can use Tableau Bridge.
Sometimes, you might need to automatically update a Web page with dynamic elements.If you check the standard life cycle of JSF, you will find that the user normally needs to produce an event on the Web page (by clicking a button, for example) to invoke the GUI refresh.
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