On Sat, 2011-02-12 at 04:51, Niclas Hedhman wrote: > On Sat, Feb 12, 2011 at 8:57 AM, Peter Firmstone <j...@zeus.net.au> wrote: > > Note that I too develop using Java 5 language features, so I'm not placing > > any constraints on where River's headed, I accept recent developments, > > people have their goals and dropping 1.4 compatibility seems the easiest way > > to achieve them. > > > > I would encourage people to open their minds to the investigation of modular > > development, Java 7 and 8 are around the corner and the same thing will have > > to happen for Java 5 at some point. > > Doesn't these paragraphs capture the need for a new specification? A > standardized way to specify the "Minimum Runtime Requirement" for the > Service Proxy, so that lookup operations can ensure that clients only > find compatible proxies... > Not only would JRE variant be needed, but potentially also OS, network > features, and if you envision Android client deployment down the line, > you would probably also like to include incl/excl of GPS, camera, > compass and other physical devices and their respective properties > (e.g. resolution, accuracy,...) > > (Forgive me if I have missed this and this is already part of the core specs.) > I'm pretty sure you could cover most of this with registration entries. e.g. have an RuntimeEnvironment Entry with two fields, 'attribute' and 'value', then the service can include 'JDK1_5_COMPATIBLE'='true' or something similar. I'm not sure if you can have multiple entries of the same type with different values (got to check the spec), but you could certainly filter the entries prior to using the service, or make it part of proxy preparation.
> Cheers > -- > Niclas Hedhman, Software Developer > http://www.qi4j.org - New Energy for Java > > I live here; http://tinyurl.com/3xugrbk > I work here; http://tinyurl.com/24svnvk > I relax here; http://tinyurl.com/2cgsug Cheers, Greg, -- Greg Trasuk, President StratusCom Manufacturing Systems Inc. - We use information technology to solve business problems on your plant floor. http://stratuscom.com
