On Thursday, 4 June 2015 at 20:10, Simon Kitching wrote:
> Hi,
>
> Yes, being able to derive at least some of the dependencies by
> introspecting the code, and then finding bundles that provide those
> packages via the repo-index is one of the advantages over OBR; it
> reduces the work of adding such dependencies to the pom manually.
> However that's not a _huge_ amount of work.
>
> There are presumably other advantages to OBR vs maven. Has nobody ever
> documented them?
>
>
Its not a matter of one over the other. Maven is a build tool, OBR is a runtime
metadata repository. They can be and frequently are used together.
>
> I'm also somewhat puzzled by how a tool would derive the OBR
> dependencies from the source-code in the first place. Introspecting
> source-code for such things is hard; analysing class-files is much
> easier - but that requires the code to be _compiled_ first, which means
> figuring out which jarfiles to include on the compilation-classpath,
> which seems to me to be a circular problem :-)
>
>
Not at all, it's just a different scope. Build dependencies are set manually by
the developer (and incidentally, don't need to be transitive in general).
Runtime dependencies are indeed analysed from the bytecode in the jar.
>
> Regards,
> Simon
>
> On 06/04/2015 08:33 PM, Raymond Auge wrote:
> > On Thu, Jun 4, 2015 at 2:32 PM, Raymond Auge <[email protected]>
> > wrote:
> >
> > > the major difference is that maven cannot tell you what you need based on
> > > only packages you import. you have to know ahead of time.
> > >
> > > bundle aware repositories like OBR or R5 can tell you which bundles you
> > > need
> > >
> >
> > rather, a resolver can use the repo index to tell you what you need (the
> > repos in all cases, OBR, R5, maven) are completely dumb.
> >
> >
> > > - Ray
> > >
> > > On Thu, Jun 4, 2015 at 2:27 PM, Simon Kitching <[email protected]> wrote:
> > >
> > > > Hi All,
> > > >
> > > > Can anyone provide me with a link to a comparison of OBR and Maven? I
> > > > can
> > > > find reasonable amounts of information about what OBR does, but nothing
> > > > about the motivation to create it given that Maven already existed...
> > > >
> > > > Thanks,
> > > > Simon
> > > >
> > >
> > >
> >
> >
>
>
>
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