Getting the type system between SQL and XDM lined up in the AMQP spec is an important part to making this simple going forward. Would be interested in what Jonathan thinks.... John
2009/2/20 Alan Conway <[email protected]> > Jonathan Robie wrote: > >> Hi Carl, >> >> I think the best approach for either language is to use an implementation >> that prepares queries. The two languages are not terribly different in the >> way they handle conditions on headers. >> >> I think that reading the content of the message is the slowest part of the >> XML Exchange, I've roughed in code that should allow me to avoid that for >> queries that do not actually access the message. (If the exchange could >> access the message content as an istream, the query engine would do this for >> me; as is, I have to check this by hand). >> >> Boost provides convenience libraries that making implementing istream > fairly easy. It shouldn't be hard to write an istream impl that iterates > over message content. Take a look at > http://www.boost.org/doc/libs/1_38_0/libs/iostreams/doc/index.html > > > > > --------------------------------------------------------------------- > Apache Qpid - AMQP Messaging Implementation > Project: http://qpid.apache.org > Use/Interact: mailto:[email protected] > >
