[jboss-user] [JBoss Seam] - Registration example again: method binding without component

[dkane]

Hello 
Please help me to understand the following code in Registration example : 

register.xhtml uses RegisterAction component annotated as "register", e.g. : 

<s:decorate id="verifyDecorate" template="edit.xhtml">
  | <ui:define name="label">Verify Password:</ui:define>
  | <h:inputSecret id="verify" value="#{register.verify}" required="true"/>
  | </s:decorate>
  | 

RegisterAction.java also has method invalid() : 

  | public void invalid()
  |    {
  |       facesMessages.add("Please try again");
  |    }
  | 


And, edit.xhtml contains code : 

<s:label styleClass="label #{invalid?'errors':''}">
  |             <ui:insert name="label"/>
  |             <s:span styleClass="required" rendered="#{required}">*</s:span>
  |         </s:label>
  | 


I don't understand which components "#{invalid}"  and "#{required}" refers to in edit.html. Or these are some global variables outside of components, how do I know more about them then ? 

Thank you. 

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