missing @Named("conv")?
Romain Manni-Bucau
@rmannibucau <https://twitter.com/rmannibucau> | Blog
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LinkedIn <https://www.linkedin.com/in/rmannibucau> | Tomitriber
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2016-09-28 23:27 GMT+02:00 Xavier Dury <[email protected]>:
>
> Caused by: javax.enterprise.inject.AmbiguousResolutionException: There is
> more than one Bean with type javax.enterprise.context.ConversationQualifiers:
> [@javax.enterprise.inject.Default()]
> for injection into Field Injection Point, field name : conversation, Bean
> Owner : [ConversationAliaser, WebBeansType:MANAGED, Name:null, API
> Types:[eg.ConversationAliaser,java.lang.Object],
> Qualifiers:[javax.enterprise.inject.Default,javax.enterprise.inject.Any]]
> found beans:
> Conversation, WebBeansType:PRODUCERMETHOD, Name:conversation, API
> Types:[javax.enterprise.context.Conversation,java.lang.Object],
> Qualifiers:[javax.enterprise.inject.Default,javax.
> enterprise.inject.Any,javax.inject.Named] from file:/D:/development/
> workspaces/openejb-el/target/test-classes/eg/ConversationWrapper.class
> ConversationImpl, WebBeansType:CONVERSATION,
> Name:javax.enterprise.context.conversation,
> API Types:[org.apache.webbeans.conversation.ConversationImpl,
> javax.enterprise.context.Conversation,java.lang.Object],
> Qualifiers:[javax.enterprise.inject.Default,javax.enterprise.inject.Any]
> from jar:file:/C:/Users/xavier/.m2/repository/org/apache/
> openwebbeans/openwebbeans-impl/1.6.3/openwebbeans-impl-
> 1.6.3.jar!/org/apache/webbeans/conversation/ConversationImpl.class
>
>
>
>
>
>
>
> From: Mark Struberg <[email protected]>
> Sent: Wednesday, September 28, 2016 11:20 PM
> To: [email protected]
> Subject: Re: OpenEJB and EL
>
> +1
>
> means
>
> @RequestScoped
>
> public class ConversationWrapper {
> private @Inject Conversation conv;
>
> @Produces
> @Dependent
> @Named("conv")
>
> public Conversation getConv() {
> return conv;
> }
> }
>
>
>
>
> On Wednesday, 28 September 2016, 23:10, Romain Manni-Bucau <
> [email protected]> wrote:
>
>
> >
> >
> >a producer allows to get a shorter/more elegant naming like #{conv.id}
> if you @Produces @Named("conv") ;)
> >
> >
> >
> >Romain Manni-Bucau
> >@rmannibucau | Blog | Old Wordpress Blog | Github | LinkedIn |
> Tomitriber | JavaEE Factory
> >
> >2016-09-28 23:01 GMT+02:00 Mark Struberg <[email protected]>:
> >
> >Oh boy, sorry for you. You did hit a blank spot in the CDI spec.
> >>
> >>Problem is that the EE umbrella spec, the EL spec and the CDI spec
> contradict each other.
> >>
> >>The Weld guys solved this by introducing a Javax class. But that takes
> away the whole javax.* tree for the EL. That's just not good as it
> contradicts the EL spec.
> >>
> >>Could you please try the following
> >>
> >>@RequestScoped
> >>@Named("conversation")
> >>public class ConversationWrapper {
> >> private @Inject Conversation conv;
> >>
> >> public Conversation get() {
> >> return conv;
> >> }
> >>}
> >>
> >>And in the EL just use #{conversation.get.id}
> >>
> >>LieGrue,
> >>strub
> >>
> >>
> >>
> >>
> >>
> >>> On Wednesday, 28 September 2016, 22:12, Xavier Dury <
> [email protected]> wrote:
> >>> > I really don't understand how something like <f:param
> >>> name="cid"
> >>> value="#{javax.enterprise. context.conversation.id}"/> actually
> >>> works... something must be made to make the EL processor accept that
> invalid
> >>> bean name.
> >>>
> >>> Making a producer which @Produces @Named Conversation conflicts with
> the
> >>> built-in bean from OWB (with WebBeanType.CONVERSATION)...
> >>>
> >>> ... so, I have done the following for my tests but I feel a bit
> ashamed because
> >>> I can't imagine there is no better solution than this ;-)
> >>>
> >>> public class ConversationAliaser {
> >>> public class Javax {
> >>> public Enterprise getEnterprise() {return new Enterprise();}
> >>>
> >>> }
> >>> public class Enterprise {
> >>> public Context getContext() {return new Context();}
> >>> }
> >>> public class Context {
> >>> public Conversation getConversation() {return conversation;}
> >>>
> >>> }
> >>> @Inject
> >>> private Conversation conversation;
> >>> @Produces @ApplicationScoped @Named("javax")
> >>> public Javax javax() {return new Javax();}
> >>> }
> >>>
> >>> But that works!
> >>>
> >>> Xavier
> >>>
> >>>
> >>>
> >>> From: Xavier Dury <[email protected]>
> >>> Sent: Wednesday, September 28, 2016 8:42 PM
> >>> To: [email protected]
> >>> Subject: Re: OpenEJB and EL
> >>>
> >>> Hmmm... I guess I'll have to @Produces @Named the conversation if I
> want to
> >>> use it in ELs. I don't know if something like
> >>> #{applicationScope['javax. enterprise.context.
> conversation'].transient}
> >>> would work?
> >>>
> >>> I remember back in my JSP days that, sometimes, I had to use something
> like
> >>> ${requestScope['javax.servlet. forward.request_uri']} instead of
> >>> plain ${javax.servlet.forward. request_uri}.
> >>>
> >>> Xavier
> >>>
> >>>
> >>> From: Romain Manni-Bucau <[email protected]>
> >>> Sent: Wednesday, September 28, 2016 6:54 PM
> >>> To: [email protected]
> >>> Subject: Re: OpenEJB and EL
> >>>
> >>> hmm, wonder if it is linked to the value you try to evaluate (which
> doesn't
> >>> respect EL spec even if in CDI spec - don't ask please ;)).. See
> >>> https://issues.jboss.org/ browse/CDITCK-462 /
>
>
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> >>>
> >>>
> >>>
> >>> Romain Manni-Bucau
> >>> @rmannibucau <https://twitter.com/ rmannibucau> | Blog
> >>>
> >>>
> >>>
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> >>> <https://javaeefactory- rmannibucau.rhcloud.com>
> >>>
> >>> 2016-09-28 18:17 GMT+02:00 Xavier Dury <[email protected]>:
> >>>
> >>>> Hi Romain,
> >>>>
> >>>> I tried with org.apache.tomcat:tomcat- jasper-el:8.5.5 but it does
> not
> >>>> parse my expression until I change ".transient" by
> >>> ".isTransient()" and
> >>>> then it gives the same error: javax.el. PropertyNotFoundException:
> >>>> ELResolver cannot handle a null base Object with identifier
> >>> 'javax'.
> >>>>
> >>>> Does the EL context need something else than adding the
> >>>> BeanManager.getELResolver() to be able to resolve some implicit
> objects? I
> >>>> don't understand why it works with ri-1.0.
> >>>>
> >>>> Xavier
> >>>>
> >>>>
> >>>> From: Romain Manni-Bucau <[email protected]>
> >>>> Sent: Wednesday, September 28, 2016 4:02 PM
> >>>> To: [email protected]
> >>>> Subject: Re: OpenEJB and EL
> >>>>
> >>>> Hi Xavier
> >>>>
> >>>> On the phone so hard to give you a link bit try using tomcat el impl
> of
> >>>> tomcat 8.5
> >>>>
> >>>> Le 28 sept. 2016 15:29, "Xavier Dury" <[email protected]>
> >>> a écrit :
> >>>>
> >>>> > Hi,
> >>>> >
> >>>> > I am using OpenEJB for my tests and need support for EL
> expressions in
> >>> my
> >>>> > own code.
> >>>> >
> >>>> > By default, if I do something like this (pay attention to the
> >>>> expression):
> >>>> >
> >>>> > ExpressionFactory factory = beanManager. wrapExpressionFactory(
> >>>> > ExpressionFactory.newInstance( ));
> >>>> > StandardELContext elContext = new StandardELContext(factory);
> >>>> > elContext.addELResolver( beanManager.getELResolver());
> >>>> > ValueExpression expression = factory.createValueExpression(
> elContext,
> >>>> > "#{javax.enterprise.context. conversation.transient}",
> >>> Boolean.class);
> >>>> > expression.getValue(elContext) ;
> >>>> >
> >>>> > and only add org.apache.tomee:openejb-core: 7.0.1 to my project
> then I
> >>>> get
> >>>> > javax.el.ELException: Unable to find ExpressionFactory of type:
> >>>> > org.apache.el. ExpressionFactoryImpl
> >>>> >
> >>>> > if I add org.glassfish:javax.el:3.0.0 then I get javax.el.
> >>>> PropertyNotFoundException:
> >>>> > ELResolver cannot handle a null base Object with identifier
> >>> 'javax'
> >>>> >
> >>>> > if I switch the EL library to com.sun.el:el-ri:1.0 (+
> >>> META-INF/javax.el.
> >>>> ExpressionFactory
> >>>> > < com.sun.el. ExpressionFactoryImpl) then my expression can be
> >>> evaluated
> >>>> > but I can't use any new feature of 3.0 (like lambdas)
> >>>> >
> >>>> > So, either my dependencies are wrong or I am not correctly
> >>> initializing
> >>>> my
> >>>> > factory.
> >>>> >
> >>>> > Does anybody have an idea?
> >>>> >
> >>>> > Thanks,
> >>>> >
> >>>> > Xavier
> >>>>
> >>>>
> >>>
> >>
> >
> >
> >
>
>
