Sorry me :) I'm receiving emails from ajax4jsf java net project and was
just missed this one with the other from the ajax4jsf lists :/
Regards!
Manfred Riem пишет:
> Uhhh since when is the reference developer list deprecated? Note he
> is talking about the Mojarra implementation not anything from JBoss.
>
> I don't know exactly why it is not working, but having you
> tried registering the converter manually on the h:inputText?
>
> Manfred
>
>
>> -------- Original Message --------
>> Subject: Re: Is JSF incompatible with generics?
>> From: Ilya Shaikovsky <ishaikovsky_at_exadel.com>
>> Date: Tue, June 09, 2009 8:02 am
>> To: dev_at_javaserverfaces.dev.java.net
>>
>>
>> This list is deprecated. Use Jboss.org resources in order to get support.
>>
>> Regards!
>>
>> Freire, Jose Luis (PT - Lisbon) пишет:
>>
>>> Using JSF 1.2.12, Facelets 1.1.14, Tomcat 6.0.18.
>>>
>>>
>>>
>>> I’m not sure where to open this bug, since I’m not sure if it’s JSF,
>>> Facelets, or EL related.
>>>
>>>
>>>
>>> If we have this simple class:
>>>
>>> *public* *class* GenericsTestController<E *extends* Object> {
>>>
>>>
>>>
>>> *private* E value;
>>>
>>>
>>>
>>> *public* E getValue() {
>>>
>>> *return* value;
>>>
>>> }
>>>
>>>
>>>
>>> *public* *void* setValue(E value) {
>>>
>>> *this*.value = value;
>>>
>>> }
>>>
>>> }
>>>
>>>
>>>
>>> And we have this class to use as a managed bean (integerTest):
>>>
>>> *public* *class* IntegerTestController *extends*
>>> GenericsTestController<Integer> {
>>>
>>>
>>>
>>> *public* String add() {
>>>
>>> setValue(getValue()+1);
>>>
>>> *return* *null*;
>>>
>>> }
>>>
>>> *public* String subtract() {
>>>
>>> setValue(getValue()-1);
>>>
>>> *return* *null*;
>>>
>>> }
>>>
>>> }
>>>
>>>
>>>
>>> This JSF code will not work:
>>>
>>> <h:form>
>>>
>>> Value:
>>>
>>> <h:inputText value="#{integerTest.value}" />
>>>
>>> <h:commandButton action="#{integerTest.add}" value="+" />
>>>
>>> <h:commandButton action="#{integerTest.subtract}" value="-" />
>>>
>>> </h:form>
>>>
>>>
>>>
>>> With this error:
>>>
>>> _java.lang.ClassCastException_: java.lang.String cannot be cast to
>>> java.lang.Integer
>>>
>>> at
>>> genericstest.IntegerTestController.add(_IntegerTestController.java:18_)
>>>
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(_Native Method_)
>>>
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(_NativeMethodAccessorImpl.java:39_)
>>>
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(_DelegatingMethodAccessorImpl.java:25_)
>>>
>>> at java.lang.reflect.Method.invoke(_Method.java:597_)
>>>
>>> at org.apache.el.parser.AstValue.invoke(_AstValue.java:172_)
>>>
>>> at
>>> org.apache.el.MethodExpressionImpl.invoke(_MethodExpressionImpl.java:276_)
>>>
>>> at
>>> com.sun.facelets.el.TagMethodExpression.invoke(_TagMethodExpression.java:68_)
>>>
>>> at
>>> javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(_MethodBindingMethodExpressionAdapter.java:88_)
>>>
>>> at
>>> com.sun.faces.application.ActionListenerImpl.processAction(_ActionListenerImpl.java:102_)
>>>
>>> at javax.faces.component.UICommand.broadcast(_UICommand.java:387_)
>>>
>>> at
>>> javax.faces.component.UIViewRoot.broadcastEvents(_UIViewRoot.java:475_)
>>>
>>> at
>>> javax.faces.component.UIViewRoot.processApplication(_UIViewRoot.java:756_)
>>>
>>> at
>>> com.sun.faces.lifecycle.InvokeApplicationPhase.execute(_InvokeApplicationPhase.java:82_)
>>>
>>> at com.sun.faces.lifecycle.Phase.doPhase(_Phase.java:100_)
>>>
>>> at
>>> com.sun.faces.lifecycle.LifecycleImpl.execute(_LifecycleImpl.java:118_)
>>>
>>> at javax.faces.webapp.FacesServlet.service(_FacesServlet.java:265_)
>>>
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(_ApplicationFilterChain.java:290_)
>>>
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(_ApplicationFilterChain.java:206_)
>>>
>>> at
>>> org.apache.catalina.core.StandardWrapperValve.invoke(_StandardWrapperValve.java:233_)
>>>
>>> at
>>> org.apache.catalina.core.StandardContextValve.invoke(_StandardContextValve.java:191_)
>>>
>>> at
>>> org.apache.catalina.core.StandardHostValve.invoke(_StandardHostValve.java:128_)
>>>
>>> at
>>> org.apache.catalina.valves.ErrorReportValve.invoke(_ErrorReportValve.java:102_)
>>>
>>> at
>>> org.apache.catalina.core.StandardEngineValve.invoke(_StandardEngineValve.java:109_)
>>>
>>> at
>>> org.apache.catalina.connector.CoyoteAdapter.service(_CoyoteAdapter.java:286_)
>>>
>>> at
>>> org.apache.coyote.http11.Http11Processor.process(_Http11Processor.java:845_)
>>>
>>> at
>>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(_Http11Protocol.java:583_)
>>>
>>> at
>>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(_JIoEndpoint.java:447_)
>>>
>>> at java.lang.Thread.run(_Thread.java:619_)
>>>
>>>
>>>
>>> In fact, it fails with the same error even if we override getValue and
>>> setValue on IntegerTestController.
>>>
>>>
>>>
>>> The only workaround is not to extend from GenericsTestController and
>>> implement the “value” property as Integer in the IntegerTestController.
>>>
>>>
>>>
>>> Help anyone?**
>>>
>>> * *
>>>
>>> *José Freire
>>> *Consulting - Financial Services Industry
>>> Deloitte Consultores, S.A.
>>> Deloitte | Edifício Atrium Saldanha, Praça Duque de Saldanha, 1 - 7º,
>>> 1050-094 Lisboa, Portugal
>>> Tel/Direct: +(351) 210 422 500 | Fax: +(351) 210 422 950
>>> jfreire_at_deloitte.pt | www.deloitte.pt
>>>
>>> Please consider the environment before printing.
>>>
>>>
>>>
>>>
>>>
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