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Re: [CDO]What query language CDO Supported? [message #427921 is a reply to message #427920] |
Fri, 06 March 2009 06:31 |
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Xxlu,
The only common query language currently supported is the internal
Resources QL (see CDOView.queryResources).
I think support of SQL (DBStore-specific) would be comparingly easy to
implement but would require the client to know the mapping details of
the backend. We're planning to supprt OCL as a common, server-side query
language in the future:
245658: [Query] Provide OCL query language
https://bugs.eclipse.org/bugs/show_bug.cgi?id=245658
CDOView.createQuery / CDOQuery are a generic query framework for sending
query strings and paramenters to the server, run query executions and
send back results synchronously or asynchronously. On the server side a
repository scoped list of query (language) handlers is consulted before
queries are passed for execution to the store. You can plug in your own
query handlers there.
Cheers
/Eike
----
http://thegordian.blogspot.com
xxlu schrieb:
> Hi,
> At present, what query language CDO Supported? CDO whether or not to
> support the SQL language? How can I use CDOQuery?
>
>
>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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