[jboss-user] [JBoss Seam] - Re: Destroying Context Variable

[jamesjmp]

hello again,
Terry, Pete and whoever.., this is the problem I´m facing:
I´ve created an app by means of seam-gen without EJB3 (seam version is 1.2.1)
Let´s call the table RstReport, the following steps work fine:
- creating new data (RstReportEdit.xhtml and RstReportEdit.page)
- details of a new RstReport displayed in the RstReport.xhtml
- list of records in RstReportList.xhtml.

This are my issues:
- after creating a new RstReport, let´s call it RstReport3, if just after that I want to create a new one, the
RstReportEdit.xhtml shows the fields the RstReport3 that I´ve just created. I must log out and log in again and then the RstReportEdit.xhtml displays no previous data.
- If I go to the list, and select one row, for instance RstReport3 row to display its data (view.gif that goes to RstReport.xhtml). After having a look to that previously created RstReport, I go to create a new one, again the RstReportEdit.xhtml displays the RstReport3 data. Whenever I change one field in that edit window, RstReport 3 data is updated right away in the database.

What happens is logic, because all this pages work with the same RstReportHome object, and the RstReport of the instance hasn´t been cleaned. What should be the best way to avoid logging out each time to clean the session? (seam 1.2.1) This is what I´ve tried up to now:

- I´ve overriden persist method in the RstReportHome this way: (rstReportHome is the name of my component)

  |     @Override
  |     public String persist() {
  |         log.info("Home - persist");
  |         String returnStatus = super.persist();
  |         Contexts.removeFromAllContexts("rstReportHome");
  |         return returnStatus;        
  |     }
  |     
  |     @Override
  |     public String remove() {
  |         log.info("Home - remove");
  |         String returnStatus = super.remove();
  |         Contexts.removeFromAllContexts("rstReportHome");
  |         return returnStatus;
  |     }
  |     
  |     @Override
  |     public String update() {
  |         log.info("Home - update");
  |         String returnStatus = super.update();
  |         Contexts.removeFromAllContexts("rstReportHome");
  |         return returnStatus;
  |     }
  | 
With that after creating a new RstReport, if I go again to the edit view, all works fine. But the problem keeps on happening if I go through RstReportList.xhtml --> RstReport.xhtml  -->RstReportEdit.xhtml (it shows same data, RstReport3, displayed in RstReport.xhtml)

I go to RstReportEdit.xhtml by means of a rich:menuItem


  | <rich:menuItem value="#{messages['New']}" action="/RstReportEdit.xhtml"/>
  | 	

To prevent that data from being displayed I´ve added in the invocation this:


  | <rich:menuItem value="#{messages['New']} param NewReport" action="/RstReportEdit.xhtml?action=NewReport">
  |                         </rich:menuItem>                        
  | 

Then in the wire I check that param, and in that case I do this:                        

  |     public void wire() {
  |         try {
  |             if (action.equals("NewReport")) {
  |                 clean();
  |             }
  |             ..
  |    }
  | 
  |     public void clean() {
  |         log.info("limpiando instancia...");
  |         Contexts.removeFromAllContexts("rstReportHome");
  |         this.setInstance(createInstance());
  |     
  |     }    
  |     @Override
  |     protected RstReport createInstance() {
  |         log.info("createInstance...............");
  |         RstReport rstReport = new RstReport();
  |         
  |         Date dat = new Date();
  |         rstReport.setReportDate(dat);
  |         
  |         Firm firma = new Firm();
  |         rstReport.setFirm(firma);
  |         firmHome.setInstance(firma);
  |         
  |         CfgBenchmark benchmark = new CfgBenchmark();
  |         rstReport.setCfgBenchmark(benchmark);
  |         cfgBenchmarkHome.setInstance(benchmark);
  |         
  |         CfgCurrency currency = new CfgCurrency();
  |         cfgCurrencyHome.setInstance(currency);
  |         rstReport.setCfgCurrency(currency);
  |         
  |         Fund cartera = new Fund();
  |         fundHome.setInstance(cartera);
  |         rstReport.setFund(cartera);
  |         
  |         //default values
  |         rstReport.setConfidenceLevel(0.99);
  |         
  |         short timeHorizonDefault = 5;
  |         rstReport.setTimeHorizon(timeHorizonDefault);
  |         
  |         rstReport.setShortDescription(" ");
  |         
  |         byte codeIni = 0;
  |         RstStatus rstStatus = new RstStatus();
  |         rstStatus.setCode(codeIni);
  |         rstStatus.setDescription("NOT READY");
  |         rstReport.setRstStatus(rstStatus);
  |         log.info("RstReportHome createdInstance!!");
  |         return rstReport;
  |     }
  | 

And to prevent data from being updated whenever changed I´ve added bypassUpdates="true" in all fields this way:


  | <a:support bypassUpdates="true" event="onblur" reRender="confidenceLevelDecoration"/>
  | 

Pete, is this the proper way to achieve this with seam 1.2.1? (Terry I haven´t check your invocation option up to now)

I could provide you with more code if you would like to.

thanks in advance! 




View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4099219#4099219

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4099219