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Posted to dev@camel.apache.org by Charles Moulliard <ch...@gmail.com> on 2013/07/01 07:52:06 UTC

Re: Xml schema RouteDefinition

And to avoid a bad design, it should be only = 1 and not 1..N


On Sun, Jun 30, 2013 at 3:08 PM, Claus Ibsen <cl...@gmail.com> wrote:

> Hi
>
> Yeah there is no reason why it can be 0. It should really be 1..n.
> Though 99% uses a single <from> in a route.
>
> So yeah if we can have the schema generated with 1 as minimum then
> that would be better.
>
> Feel free to log a JIRA and provide a patch.
>
> On 6/30/13, AlanFoster <al...@alanfoster.me> wrote:
> > Hi guys,
> >
> > I'm just wondering if there are any technical reasons why a
> RouteDefinition
> > is allowed zero to unbounded occurrences of the `from` element;
> >
> > From the Schema for camel 2.10.0 -
> >
> > <xs:complexType name="routeDefinition">
> >     <xs:complexContent>
> >       <xs:extension base="tns:processorDefinition">
> >         <xs:sequence>
> >           <xs:element ref="tns:from" minOccurs="0"
> maxOccurs="unbounded"/>
> >           <xs:choice minOccurs="0" maxOccurs="unbounded">
> >               ......
> >           </xs:choice>
> >         </xs:sequence>
> >          ......
> >       </xs:extension>
> >     </xs:complexContent>
> >   </xs:complexType>
> >
> > We can see from the generated Schema that we are allowed a route that
> looks
> > like the following :
> >
> > <route>
> >    <log message="Hello World" />
> > </route>
> >
> > But we will receive the following error if we try to run it
> >
> > java.lang.IllegalArgumentException: Route has no inputs: Route[[] ->
> > [Log[hello World]]]
> >
> > IE, can we add a required = true annotation to force a min-occurs = 1 in
> > the
> > generated schema, or are there technical reasons why this isn't a good
> > idea?
> >
> > Cheers
> >
> >
> >
> > --
> > View this message in context:
> >
> http://camel.465427.n5.nabble.com/Xml-schema-RouteDefinition-tp5735010.html
> > Sent from the Camel Development mailing list archive at Nabble.com.
> >
>
>
> --
> Claus Ibsen
> -----------------
> www.camelone.org: The open source integration conference.
>
> Red Hat, Inc.
> FuseSource is now part of Red Hat
> Email: cibsen@redhat.com
> Web: http://fusesource.com
> Twitter: davsclaus
> Blog: http://davsclaus.com
> Author of Camel in Action: http://www.manning.com/ibsen
>



-- 
Charles Moulliard
Apache Committer / Architect @RedHat
Twitter : @cmoulliard | Blog : http://cmoulliard.blogspot.com