[ http://issues.apache.org/jira/browse/MYFACES-1019?page=comments#action_12362478 ]
Werner Punz commented on MYFACES-1019: -------------------------------------- As Martin has pointed out, this is more of a usage problem, and definitely not scope of a myfaces bug. The solution is the shale view controller, if you are not familiar with that one, also servlet filters work, or phase listeners. (although phase listeners can only trigger an initial state securely not an ending one, due to the possibiltiy of skipping additional phases programmatically) Not having such things in normal backing beans is probably a design decision, as it seems the JSF specificators kept the syntax of the backing beans as POJO as possible, having such callback would break the POJO paradigm. (Shale for instance uses to my knowledge a special View Controller interface which introduces the callbacks into the backing bean) > JSF initial state > ----------------- > > Key: MYFACES-1019 > URL: http://issues.apache.org/jira/browse/MYFACES-1019 > Project: MyFaces > Type: Improvement > Components: Implementation > Versions: 1.1.1 > Environment: Linux, WindowXP, JDeveloper > Reporter: Guy Bashan > > I am having this problem for a long time and lost any hope of getting a > decent answer in any forum: > It seems like JSF does not give any solution to initial state problem. > A simple example: > I want to show a simple table that is being updated according to several > filters. > The table should be shown with initial data according to filters selections. > The actions that I am doing are: > 1) To show initially the table, on the backing bean constructor I am loading > the table data. > 2) On any "valueChange" of every filter I want to load the new data of the > table also, so I load the data again. > This causes the data of the table to be loaded twice: once in the constructor > and second in the value change listener method. > This problem happens in many variations many times in JSF. Is there a way of > initializing data properly ? > For example, I would expect that in addition to the constructor there will be > 2 additional methods: > 1) init() - Will be called when screen first loads. > 2) reinit() - Will be called when screen is reloaded. > Am I missing here something ? Or there is a solid agreed way of solving the > initial state term in JSF. > By the way, I have to initialize data dynamically and not using managed > properties. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
