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<H3><A name="SCAJavaimplementation.bpel-Introduction"></A>Introduction</H3>
<P>This is a initial WS-BPEL component implementation that allows SCA runtime to invoke WS-BPEL executable processes in a SCA composition.<BR>
We are still working to finalize the Reference support, to allow your BPEL process to have partnerLinks pointing to SCA components.</P>
<P>As for creating a SCA component, below is an sample SCDL</P>
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<composite xmlns=<SPAN class="code-quote">"http:<SPAN class="code-comment">//www.osoa.org/xmlns/sca/1.0"</SPAN>
</SPAN> targetNamespace=<SPAN class="code-quote">"http:<SPAN class="code-comment">//bpel"</SPAN>
</SPAN> xmlns:hns=<SPAN class="code-quote">"http:<SPAN class="code-comment">//tuscany.apache.org/implementation/bpel/example/helloworld"</SPAN>
</SPAN> name=<SPAN class="code-quote">"bpel"</SPAN>>
<component name=<SPAN class="code-quote">"BPELHelloWorldComponent"</SPAN>>
<implementation.bpel process=<SPAN class="code-quote">"hns:HelloWorld"</SPAN>/>
</component>
</composite>
</PRE>
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<H3><A name="SCAJavaimplementation.bpel-WSBPELEngine"></A>WS-BPEL Engine</H3>
<P>As for a WS-BPEL engine, we are using Apache ODE. In order to properly deploy a WS-BPEL process in ODE, a deployment descriptor like the one below should be suplied with your application :</P>
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</SPAN> xmlns:tns=<SPAN class="code-quote">"http:<SPAN class="code-comment">//tuscany.apache.org/implementation/bpel/example/helloworld"</SPAN>
</SPAN> xmlns:wns=<SPAN class="code-quote">"http:<SPAN class="code-comment">//tuscany.apache.org/implementation/bpel/example/helloworld.wsdl"</SPAN>>
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<active><SPAN class="code-keyword">true</SPAN></active>
<provide partnerLink=<SPAN class="code-quote">"helloPartnerLink"</SPAN>>
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</deploy>
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<P>For more information on these deployment descriptors, see documentation on <A href="http://ode.apache.org/creating-a-process.html" class="external-link" rel="nofollow">Deploying a process in ODE</A></P>
<H3><A name="SCAJavaimplementation.bpel-References"></A>References</H3>
<P><A href="http://osoa.org/display/Main/SCA%20BPEL%20White%20Paper" class="external-link" rel="nofollow">SCA & BPEL white paper </A></P>
<P><A href="http://osoa.org/download/attachments/35/SCA_ClientAndImplementationModelforBPEL_V100.pdf?version=1" class="external-link" rel="nofollow">SCA Client Implementation Model for BPEL v1.00 </A></P>
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