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Re: [corona-dev] Content Adapters - first thoughts
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Well, isn't it simply a repository which uses a web service call as an
access method? If it uses SDO for transferring objects it is just an
adapter implementation issue. If the service sends objects as SDO
serialized to XML, then it just makes it easier to implement the
adapter, if we are to use SDO interfaces for usage. Am I missing something?
Marcin
Everitt, Glenn napisał(a):
Content Adapters – first thoughts please review.
Sometimes you need to look up information remotely through a web
service. The Context Container can use the Collaboration Server SOA
support to access remote information through the use of Content
Adapters. Content Adapters are similar to RepositoryAdapters. However,
Content Adapters typically only access a single object rather than
allowing access to an entire repository of information.
A Content Adapter acts as a /Data Mediator Service /providing an SDO
Data Graph object in response to a webservice call.
Should we persist a Content Adapter as a repository-descriptor?
If we persisted a Content Adapter as a repository-descriptor would
look like this?
<repository-descriptor
content-type="http://www.eclipse.org/corona/contentTypes/webservice"
name="MySampleWebServiceContentAdapter"
uri="http://www.eclipse.org/corona/repository/CoronaHomePage">
<description>Web site of Corona project</description>
<repository-configurations default-configuration-name="
MySampleWebServiceContentAdapterConfiguration">
<repository-configuration name="
MySampleWebServiceContentAdapterConfiguration ">
<repository-connection-parameters
access-type="http://www.eclipse.org/corona/accessTypes/webservice"
name=" MySampleWebServiceContentAdapterParameters">
<repository-connection-parameter name="endpoint"
value="http://www.eclipse.org/corona/MySampleWebService/getAdapterData"/>
</repository-connection-parameters>
</repository-configuration>
</repository-configurations>
</repository-descriptor>
Content Adapter for Web Service holds:
- Web Service endpoint to be called
- A URI identifier for the SDO object returned
Can we create an automatic mapping from Web Service WSDL definition to
SDO Data Graph we want the Content Adapter to return?
- the WSDL describes the response information is this all we need to
map to SDO Data Graph
- how should information returned from web service be presented
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