Webflow Ajax Partial Rendering

[hello040306]

I am trying to implement partial page rendering using spring webflow and tiles.
I am trying to use the booking sample included in the distribution
Here are my configuration file.

<bean id="mvcViewFactoryCreator"
		class="org.springframework.webflow.mvc.builder.MvcViewFactoryCreator">
		<property name="viewResolvers" ref="tilesViewResolver" />
	</bean>

	<bean id="tilesViewResolver"
		class="org.springframework.js.ajax.AjaxUrlBasedViewResolver">
		<property name="viewClass"
			value="org.springframework.webflow.mvc.view.FlowAjaxTilesView" />
	</bean>

	 <bean id="tilesConfigurer"
        class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
        <property name="definitions">
        <value>/WEB-INF/tiles/views.xml</value>
        </property>
    </bean>

Tiles configuation:

 <definition name="hotelIndex" extends="mainTemplate">
		<put-attribute name="content" value="test" />
	</definition>
	
    <definition name="test" template="/WEB-INF/jsp/index2.jsp">
        <put-attribute name="hotelSearchForm" value="/WEB-INF/jsp/testAjax1.jsp" />
    </definition>
	
	
	<definition name="search" extends="mainTemplate">
		<put-attribute name="content" value="/WEB-INF/jsp/search.jsp" />
		</definition>

and search.jsp

<form:form modelAttribute="hotel" method="post" action="booking.htm" id="formid">

<input type="text" id="changeSearchLink"/>
	
 
<script type="text/javascript">
 	Spring.addDecoration(new Spring.AjaxEventDecoration({
		elementId: "changeSearchLink",
		event: "onclick",
		formId: "formid",
			popup: true,
			params: {fragments: "hotelSearchForm"}
	}));
</script>

<input type="hidden" name="_flowExecutionKey"
				value="${flowExecutionKey}" />
				</form:form>
</body>
</html>

When the search page loads, it has a textbox and on clicking of the textbox i want to make an ajax call and the call gets placed but just before rendering i get an exception



org.springframework.webflow.execution.FlowExecutio nException: Exception thrown in state 'search' of flow 'order-flow'
[INFO] [talledLocalContainer] at org.springframework.webflow.engine.impl.FlowExecut ionImpl.wrap(FlowExecutionImpl.java:571)
[INFO] [talledLocalContainer] at org.springframework.webflow.engine.impl.FlowExecut ionImpl.resume(FlowExecutionImpl.java:265)
[INFO] [talledLocalContainer] at org.springframework.webflow.executor.FlowExecutorI mpl.resumeExecution(FlowExecutorImpl.java:169)
[INFO] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.FlowHandle rAdapter.handle(FlowHandlerAdapter.java:183)
[INFO] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.FlowContro ller.handleRequest(FlowController.java:174)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:790)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:719)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:644)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.d oPost(FrameworkServlet.java:560)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet .java:641)
[INFO] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet .java:722)
[INFO] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:306)
[WARNING] [talledLocalContainer] Nov 7, 2011 12:11:53 AM org.apache.catalina.core.StandardWrapperValve invoke
[WARNING] [talledLocalContainer] SEVERE: Servlet.service() for servlet [Booking Dispatcher Servlet] in context with path [/Booking-web] threw exception [Request processing failed; nested exception is org.springframework.webflow.execution.FlowExecutio nException: Exception thrown in state 'search' of flow 'order-flow'] with root cause
[WARNING] [talledLocalContainer] java.lang.NullPointerException
[WARNING] [talledLocalContainer] at org.springframework.js.ajax.tiles2.AjaxTilesView.r enderMergedOutputModel(AjaxTilesView.java:92)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.view.AbstractView. render(AbstractView.java:250)
[WARNING] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.ServletMvc View.doRender(ServletMvcView.java:50)
[WARNING] [talledLocalContainer] at org.springframework.webflow.mvc.view.AbstractMvcVi ew.render(AbstractMvcView.java:187)
[WARNING] [talledLocalContainer] at org.springframework.webflow.engine.ViewState.rende r(ViewState.java:296)
[WARNING] [talledLocalContainer] at org.springframework.webflow.engine.ViewState.refre sh(ViewState.java:243)
[WARNING] [talledLocalContainer] at org.springframework.webflow.engine.ViewState.resum e(ViewState.java:221)
[WARNING] [talledLocalContainer] at org.springframework.webflow.engine.Flow.resume(Flo w.java:545)
[WARNING] [talledLocalContainer] at org.springframework.webflow.engine.impl.FlowExecut ionImpl.resume(FlowExecutionImpl.java:261)
[WARNING] [talledLocalContainer] at org.springframework.webflow.executor.FlowExecutorI mpl.resumeExecution(FlowExecutorImpl.java:169)
[INFO] [talledLocalContainer] at java.lang.Thread.run(Thread.java:619)
[INFO] [talledLocalContainer] Caused by: java.lang.IllegalStateException: Exception occurred rendering view org.springframework.webflow.mvc.view.FlowAjaxTiles View: name 'search'; URL [search]
[INFO] [talledLocalContainer] at org.springframework.webflow.mvc.view.AbstractMvcVi ew.render(AbstractMvcView.jmpl.java:261)
[INFO] [talledLocalContainer] ... 25 more
[INFO] [talledLocalContainer] Caused by: java.lang.NullPointerException
[INFO] [talledLocalContainer] at org.springframework.js.ajax.tiles2.AjaxTilesView.r enderMergedOutputModel(AjaxTilesView.java:92)
[INFO] [talledLocalContainer] at org.springframework.web.servlet.view.AbstractView. render(AbstractView.java:250)
[INFO] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.ServletMvc View.doRender(ServletMvcView.java:50)
[INFO] [talledLocalContainer] at org.springframework.webflow.mvc.view.AbstractMvcVi ew.render(AbstractMvcView.java:187)
[INFO] [talledLocalContainer] ... 30 more
[WARNING] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.FlowHandle rAdapter.handle(FlowHandlerAdapter.java:183)
[WARNING] [talledLocalContainer] at org.springframework.webflow.mvc.servlet.FlowContro ller.handleRequest(FlowController.java:174)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.mvc.SimpleControll erHandlerAdapter.handle(SimpleControllerHandlerAda pter.java:48)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:790)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:719)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:644)
[WARNING] [talledLocalContainer] at org.springframework.web.servlet.FrameworkServlet.d oPost(FrameworkServlet.java:560)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet .java:641)
[WARNING] [talledLocalContainer] at javax.servlet.http.HttpServlet.service(HttpServlet .java:722)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:306)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:210)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:240)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:161)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:164)
[WARNING] [talledLocalContainer] at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:100)
[WARNING] [talledLocalContainer] at org.apache.catalina.valves.AccessLogValve.invoke(A ccessLogValve.java:541)
[WARNING] [talledLocalContainer] at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:118)
[WARNING] [talledLocalContainer] at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:383)
[WARNING] [talledLocalContainer] at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:243)
[WARNING] [talledLocalContainer] at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.process(Http11Protocol.java:188)
[WARNING] [talledLocalContainer] at org.apache.tomcat.util.net.JIoEndpoint$SocketProce ssor.run(JIoEndpoint.java:288)
[WARNING] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExecutor.java:886)
[WARNING] [talledLocalContainer] at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
[WARNING] [talledLocalContainer] at java.lang.Thread.run(Thread.java:619)


I would appreciate if someone gives any input over this issue.

Thanks

[tarebor]

It seems like there was something wrong with your ties configuration. Have you defined in views.xml an attribute or template or whatever with the same name of the view-state?
When you defined the transition have you defined a fragment to render on the transition in *-flow.xml? which name have you used to? Check firmly the tiles configuration and the flow declarations.

@tarebor

[hello040306]

yes i have everything configured correctly.Looks like it is a bug with Spring 3 and Tiles 2.2.Which version are you using?

https://jira.springsource.org/browse/SWF-1220