[jboss-user] [JBoss Seam] - Re: Using Seam Identity - What's the recommended approach?

[steveant]

Thank you both for your input.  I had originally implemented my own login validation and am moving to JAAS so that I can take advantage of the role based security built into Seam.  It is too bad about the hibernate validation though, I agree.  

In any case I'm running into another problem now which may be a jbpm bug Maybe someone's encountered it:

>From within a pageflow I'm calling identity.login and getting an error:
code:

loginProcess.jpdl.xml:
. . .
  | <transition name="login-user" to="authenticateUser">
  |      <action expression="#{identity.login}" />
  | </transition>
  | . . .

error on return of "login-user" from a commandLink click:
  | 00:29:01,817 ERROR [GraphElement] action threw exception: couldn't evaluate expression '#{identity.login}'
  | org.jbpm.JbpmException: couldn't evaluate expression '#{identity.login}'
  | 	at org.jbpm.jpdl.el.impl.JbpmExpressionEvaluator.evaluate(JbpmExpressionEvaluator.java:38)
  | 	at org.jbpm.graph.def.Action.execute(Action.java:119)
  | . . .
  | Caused by: org.jbpm.jpdl.el.ELException: Unable to find a value for "login" in object of class "org.jboss.seam.security.RuleBasedIdentity" using operator "."
  | . . .
  | Caused by: org.jbpm.JbpmException: couldn't evaluate expression '#{identity.login}'
  | . . .
  | Caused by: org.jbpm.jpdl.el.ELException: Unable to find a value for "login" in object of class "org.jboss.seam.security.RuleBasedIdentity" using operator "."

I found in another thread that a suggestion from GK to try overriding the login function - which I did -- it made no difference:

@Name("org.jboss.seam.core.identity")
  | @Scope(ScopeType.SESSION)
  | @Intercept(InterceptionType.AFTER_RESTORE_VIEW)
  | public class OverrideIdentity extends RuleBasedIdentity
  | {
  | 	public String login() 
  | 	{
  | 		return super.login();
  | 	}
  | }

Has anyone run into a similar problem?  

Thanks again for your help.


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