How to get list of all JSF beans

Question

How can one get a list of all JSF beans?
To get a particular JSF bean one does
   static public Object findJSFBean(String beanName)
      FacesContext fc = FacesContext.getCurrentInstance();
      if (fc== null) return null;
      ELContext elContext = fc.getELContext();
      Application app = fc.getApplication();
      ELResolver elResolver = app.getELResolver();
      Object result = elResolver.getValue(elContext, null, beanName);
      return result;
   }Edited by: sn72 on Sep 2, 2008 5:49 PM

Answer 1

sn72 wrote:
Several ways:
1) Store some key in the request scope indicating the "id" of the wizard.
2) Use a single session scoped bean which references all related session scoped beans so that you have a single main point of reference.
3) Consider conversation scope. Apache Orchestra and JBoss Seam have their solutions.1. Can you elaborate on this?On start of the wizard generate/assign some unique identifier which you pass to the next request everytime as a hidden parameter. Use this identifier to identify a separate 'wizard conversation scope'.
2. Yeah, this might work. But I'd need to have a common entry point (such as overriding doPost of the default faces servlet) to destroy the wizard bean whose pages have ended, which means hardcoding page names in my java code. Also, my wizard would have to register itself in this map. That's why this solution seems very much like what I was asking for originally -- that is, the session bean has a list of all wizard beans in it.Just destroying the session bean at its own ought to be sufficient. E.g. externalContext.getSessionMap().put("managedBeanName", null); destroys the session scoped bean associated with the specified managed bean name.
3. This is the ideal solution. Unfortunately, the documentation is not very good, and I could not find examples. Hopefully this will make its way into JSF 3.0.Can't help any much with this further.