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The following page has been changed by JesseKuhnert: http://wiki.apache.org/jakarta-tapestry/41RenderCycleDesign ------------------------------------------------------------------------------ * '''Asynchronous JSON requests''' - These are requests like any other, but expect a very specific type of data returned from the server, data that is validily structured as [http://json.org] data. Such a structure describes a javascript object. * '''Comet/Server data push''' - The term originally coined by alex from [http://dojotoolkit.org], describes the process of pushing data from the server to a client. This enables a slightly more dynamic user interface that doesn't involve having to constantly poll servers for new data, but it has the added drawback of having long lived open connections. + === Asynchrnous Requests/Returns === + These types of requests can be anything that a normal http request/response can be, except that in the case of tapestry you commonly want to invoke or update a certain portion of your page dynamically. An example below will illustrate this usage. + + This example is a scenerio where we have a PropertySelection list that allows a user to select a "Project" that they would like to work on, when they make a selection in the list we would like the server to update another component on our page, "ProjectDetails". This component displays detailed meta information about our chosen project. Since the UI is such that we would like to not have to refresh the entire page whenever one of these selections is made we will use "ajax" to refresh only the "ProjectDetails" component when the selection is made. Here is a visual example: + --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
