Re: how to access another SCA Component in BPEL

[Peng Han]

Dear Resende:

I tried to access the links you provided but it seems that it was 
broken. Would you please check it?

Also I would like to ask whether it is possible to consume a service 
provided by a .bpel implemented component
from a component implemented as widget and how. I tried to do it in the 
following composite but the program
seems stuck when invoking the service.

Thanks a lot!

the composite is as follows:

<composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
   
xmlns:hns="http://tuscany.apache.org/implementation/bpel/example/helloworld";
   xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0"; 
name="helloworld"
   targetNamespace="http://bpel";>
   <component name="BPELHelloWorldComponent">
       <implementation.bpel process="hns:HelloWorld" />
       <service name="helloPartnerLink">
           <interface.wsdl
               
interface="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl#wsdl.interface(HelloPortType)" 
/>
           <binding.ws 
uri="http://localhost:8080/BPELHelloWorldComponent"; />
       </service>
   </component>
   <component name="RegistrationWidgetComponent">
       <tuscany:implementation.widget location="Registration.html" />
       <service name="Widget">
           <tuscany:binding.http 
uri="http://localhost:8080/Registration"; />
       </service>
       <reference name="RegistrationReference">
           <interface.wsdl
               
interface="http://tuscany.apache.org/implementation/bpel/example/helloworld.wsdl#wsdl.interface(HelloPortType)" 
/>
           <binding.ws 
uri="http://localhost:8080/BPELHelloWorldComponent"; />
       </reference>
   </component>
   <service name="RegistrationService" 
promote="RegistrationWidgetComponent/Widget" />
   <wire source="RegistrationWidgetComponent/RegistrationReference"
       target="BPELHelloWorldComponent/helloPartnerLink" />
</composite>

Best Regards

P.Han
This is demonstrated in the following bpel-reference iTest [1]. In
this case, we have a grretings java component, and then a BPEL
component that have a reference to this service as described in the
composite below.

<composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
        targetNamespace="http://bpel";
    xmlns:hns="http://helloworld";
    name="helloworld">

    <component name="HelloWorldService">
        <implementation.bpel process="hns:HelloWorld"/>
        <reference name="greetingsPartnerLink" 
target="GreetingsServiceComponent"/>
    </component>

    <component name="GreetingsServiceComponent">
        <implementation.java class="greetings.GreetingsServiceImpl" />
            <service name="GreetingsService">

                <interface.wsdl 
interface="http://greetings#wsdl.interface(Greetings)" />
            </service>
    </component>
</composite>

Please let me know if you have questions or any problems running the
sample test scenario.


[1] 
https://svn.apache.org/repos/asf/tuscany/java/sca/itest/bpel/helloworld-reference/


On Thu, Aug 28, 2008 at 8:21 PM, xuhongbo <x...@tongtech.com> wrote:
  
Hi
       Now I am using  the sca provided build in bpel engine, and want to
invoke another sca-component in the bpel process;
       Though I could deploy the -java-implement sca component as
web-service by ws binding,then access it in bpel by import a wsdl process.
This way ask for all sca-java-componet deployed as web-service, and seems
too trival for deployment.
       So does anyone know how to use a sca-reference in a BPEL implement
component to access another sca component? Or some other mechanism can
direct access sca-component? Typically sca component invoked by the bpel is
always implement as Java Language.

Thanks