On Thu, Dec 19, 2013 at 8:43 PM, Emmanuel Bernard <emman...@hibernate.org>wrote:
> On Thu 2013-12-19 19:57, Dan Berindei wrote: > > On Thu, Dec 19, 2013 at 2:15 PM, Emmanuel Bernard < > emman...@hibernate.org>wrote: > > > > > On Thu 2013-12-19 9:46, Galder Zamarreño wrote: > > > > > == Example of continuous query atop remote listeners > > > > > > > > > > Thinking about how to implement continuous query atop this > > > > > infrastructure I am missing a few things. > > > > > > > > > > The primary problem is that I don't want to enlist a filter id per > > > > > continuous query I want to run. Not only that but I'd love to be > able > > > to > > > > > add a continuous query on the fly and disable it on the fly as > well per > > > > > client. For that filters and converters are not flexible enough. > > > > > > > > > > What is missing is the ability to pass parameters from the client > to > > > > > the remote filter and remote converter. Parameters should be > provided > > > > > *per client*. Say Client 1 register the continuous query listener > with > > > > > "where age > 19" and client 2 registers the CQ listener with "where > > > name > > > > > = emmanuel". The filter knowing for which client it filters, it > will > > > be able to only > > > > > return the keys that match the query. > > > > > > > > This all sounds a bit like remote code exectution to me? You're > asking > > > for the client to pass some kind of executable thing that acts as a > filter. > > > That's a separate feature IMO, which I believe @Tristan is looking > into. > > > Once that's in place, I'm happy to enhance stuff in the remote event > side > > > to support it. > > > > > > I don't think you are correct. > > > This is not remote execution in the sense of arbitrary code driven by > > > the client. Remote execution will likely be triggered, render a > > > result and stop. It will not send matching events in a continuous > fashion. > > > Plus remote execution will likely involve dynamic languages and I'm not > > > sure we want to go that route for things like continuous query. > > > > > > > To be clear, this is exactly the same as the filter parameters that Radim > > was asking for, right? From Infinispan's point of view, the filter just > > takes a String parameter, and the fact that that string can be parsed by > > the filter in a particular language is irrelevant. > > Not sure what string you are talking about. The filterid? > > I was referring to the condition string: "where age > 19", or "where name = emmanuel".
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