Re: [OS-webwork] How to use the ComponentManager...

[Christian Meunier]

Christian Meunier wrote:

Hi all, i am trying to use the ComponentManager class to initialize a 
component in a servlet filter as follow :

public class HibernateFilter implements Filter
{
  private Log log = LogFactory.getLog(this.getClass());
  private ComponentManager componentManager;
  private PersistenceManager persistenceManager;
  public void init(FilterConfig filterConfig) throws ServletException
  {
      ComponentManager componentManager = (ComponentManager) 
filterConfig.getServletContext().getAttribute("DefaultComponentManager");
      componentManager.initializeObject(persistenceManager);
  }
     ......

}

And i got :

java.lang.NullPointerException
   at 
com.opensymphony.xwork.interceptor.component.DefaultComponentManager.loadResource(DefaultComponentManager.java:122) 

   at 
com.opensymphony.xwork.interceptor.component.DefaultComponentManager.initializeObject(DefaultComponentManager.java:73) 

I obviously miss something but what ?

Thanks in advance
Christian Meunier


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Found the solution ;)

public class HibernateFilter implements Filter, PersistenceManagerAware
{
   private Log log = LogFactory.getLog(this.getClass());
   private ComponentManager componentManager;
   private PersistenceManager persistenceManager;
   public void setPersitenceManager(PersistenceManager persistenceManager)
   {
       this.persistenceManager = persistenceManager;
   }
   public void init(FilterConfig filterConfig) throws ServletException
   {
       ComponentManager componentManager = (ComponentManager) 
filterConfig.getServletContext().getAttribute("DefaultComponentManager");
       componentManager.initializeObject(this);
   }
   .......
}

Regards
Chris




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