[jboss-user] [JBoss Seam] - back and cancel button on a pages containing input field

[ellenzhao]

My pageflow diagram is shown below. All the "next" buttons on the pages work well but I have a question for the back and cancel button (on the page, but not brower's back button). When there is a page containing input fields, after the clicking the back or cancel button, the validation of the input fields still happened. I had to input some dummy values in order to go back or cancel. This is not natural and how can I go back and cancel immediately without validation? The pageflow is managed by a jpdl file: 
  | <pageflow-definition name="roomBookingFlow">
  | 	<start-state name="start">
  | 		<transition to="preference" />
  | 	</start-state>
  | 
  | 	<page name="preference" view-id="/reservations/preferences.xhtml">
  | 		<redirect />
  | 		<transition name="pricing" to="checkAvailability">
  | 			<action expression="#{roomBooking.doPricing}" />
  | 		</transition>
  | 		<transition name="cancel" to="cancelPage" />
  | 	</page>
  | 
  | 	<decision name="checkAvailability"
  | 		expression="#{roomBooking.roomAvailable}">
  | 		<transition name="true" to="checkLoggedIn" />
  | 		<transition name="false" to="preference"/>
  | 	</decision>
  | 
  | 	<decision name="checkLoggedIn" expression="#{login.loggedIn}">
  | 		<transition name="true" to="payment" />
  | 		<transition name="false" to="loginPage" />
  | 	</decision>
  | 
  | 	<page name="loginPage" view-id="/login.xhtml">
  | 		<transition name="login" to="payment">
  | 			<action expression="#{login.login}" />
  | 		</transition>
  | 		<transition name="newguest" to="payment">
  | 			<action expression="#{register.startEdit}" />
  | 		</transition>
  | 		<transition name="back" to="preference" />
  | 		<transition name="cancel" to="cancelPage" />
  | 	</page>
  | 
  | 
  | 	<page name="payment" view-id="/reservations/payment.xhtml"
  | 		no-conversation-view-id="/reservations/preferences.xhtml">
  | 		<redirect />
  | 		<transition name="next" to="checkPayment" />
  | 		<transition name="back" to="preference" />
  | 		<transition name="cancel" to="cancelPage" />
  | 	</page>
  | 
  | 	<decision name="checkPayment"
  | 		expression="#{roomBooking.validPayment}">
  | 		<transition name="true" to="review" />
  | 		<transition name="false" to="payment" />
  | 	</decision>
  | 
  | 	<page name="review" view-id="/reservations/review-details.xhtml"
  | 		no-conversation-view-id="/reservations/preferences.xhtml">
  | 		<redirect />
  | 		<transition name="book" to="confirmation">
  | 			<action expression="#{roomBooking.bookRoom}" />
  | 		</transition>
  | 		<transition name="back" to="payment" />
  | 		<transition name="cancel" to="cancelPage" />
  | 	</page>
  | 
  | 	<page name="confirmation" view-id="/reservations/complete.xhtml"
  | 		no-conversation-view-id="/reservations/preferences.xhtml">
  | 		<redirect />
  | 		<end-conversation />
  | 	</page>
  | 
  | 	<page name="cancelPage" view-id="/home.xhtml"
  | 		no-conversation-view-id="/home.xhtml">
  | 		<redirect />
  | 		<end-conversation />
  | 	</page>
  | 
  | </pageflow-definition>

The diagram is here:
[img]http://www.ningning.org/images/reservation-pageflow-cropped.png[/img]

Any enlightenment would be highly appreciated!


Regards,
Ellen

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