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https://issues.apache.org/jira/browse/AXIS2-2120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12471063
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Gee Chia commented on AXIS2-2120:
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Dims:
I appreciate your reminder to consider different implementation alternative.
During the design and implementation of the metadata exchange solution, I am
trying to consider from different perspectives of how Axis2 users/developers
might be using the metadata exchange code, and also how to fit the solution in
the very robust Axis2 architecture - configurable and easily extensible for
supporting different data retrieval implementation, and future data retrieval
requirements. I am hoping to provide a more general data retrieval (exchange)
code base to address WS-MEX specification requirements as well as longer-term
needs.
a. Supports extensible set of data i.e. not limited to only WSDL, Policy, and
Schema. See
http://download.boulder.ibm.com/ibmdl/pub/software/dw/specs/ws-rt/ws-rt-spec.pdf
for an example.
b. Provides hooks for other mechanisms to store/generate the metadata i.e.
allows Axis2 users to implement specialize data retrieval logic instead of
using the default Axis2 implementation. The plug-in data locator is not
MEX-specific. It is about how to associate some extra data with a target web
service. MEX is just one way to access to the data locator to perform metadata
exchange.
The data retrieval extends in Axis2 kernel is to provide support for data
associated with a service, and to provide a way for people to plug-in their own
implementation for retrieving and/or generating data.
Again, thanks for your attention.
Gee Chia
> Metadata Exchange support on Axis2
> -----------------------------------
>
> Key: AXIS2-2120
> URL: https://issues.apache.org/jira/browse/AXIS2-2120
> Project: Axis 2.0 (Axis2)
> Issue Type: New Feature
> Components: modules
> Affects Versions: nightly
> Reporter: Gee Chia
> Attachments: mexPatch
>
>
> New features to support WS-MetadataExchange specification on Axis.
> Basically, to support incoming Get Metadata request message from SOAP
> protocol engines, Axis2 SOAP processing is extended with new metadataExchange
> module, and allows plug-in of Data Locators. Data Locator is responsible to
> perform data retrieval. The plug-in support allows other Web Services engines
> that build on top of Axis2 to support different data retrieval
> implementation.
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