+1 with Stephen

We faced the problem with release plugin and, since then, are "hard coding"
version in the artefacts.

Frederic

On Wed, Dec 9, 2009 at 9:03 AM, Stephen Connolly <
[email protected]> wrote:

> AFAIK using ${project.versopm} is not the preferred way.  The release
> plugin
> will update all those versions for you so that you don't have to use
> ${project.version}.  If you use ${project.version} then releases will be
> slower AFAIK due to some strange resolving issue!
>
> The use of properties for specifying versions in dependencies is usually
> when you want to lock a suite of dependencies (built externally to your
> reactor) to the same version, e.g.
>
> <properties>
>        <jetty-version>6.1.20</jetty-version>
> </properties>
>
> <dependencies>
>            <dependency>
>                <groupId>org.mortbay.jetty</groupId>
>                <artifactId>jetty</artifactId>
>                <version>${jetty-version}</version>
>            </dependency>
>
>            <dependency>
>                <groupId>org.mortbay.jetty</groupId>
>                <artifactId>jetty-management</artifactId>
>                <version>${jetty-version}</version>
>            </dependency>
>
>            <dependency>
>                <groupId>org.mortbay.jetty</groupId>
>                <artifactId>jetty-naming</artifactId>
>                <version>${jetty-version}</version>
>            </dependency>
>
>            <dependency>
>                <groupId>org.mortbay.jetty</groupId>
>                <artifactId>jetty-plus</artifactId>
>                <version>${jetty-version}</version>
>            </dependency>
>
>            <dependency>
>                <groupId>org.mortbay.jetty</groupId>
>                <artifactId>jetty-util</artifactId>
>                <version>${jetty-version}</version>
>            </dependency>
> </dependencies>
>
> in the above example, a property is the only way to ensure that all the
> dependencies are tied to the same version.  In addition, if you have a pom
> with such a set of dependencies / dependencyManagement and the property is
> defined in the same pom.xml, then versions:update-properties becomes very
> handy
>
> -Stephen
>
> 2009/12/9 Baptiste MATHUS <[email protected]>
>
> > And by the way, using variables for specifying dependencies versions
> > perfectly work out of the box with maven2.
> >
> > For example, we have a whole project hierarchy of 20+ modules that all
> have
> > the same version. Each module always references the parent version since
> it
> > must be there. But it doesn't have its own <version> tag, or even
> > <groupId>.
> > And referencing between modules is then just done by the standard
> variable
> > ${project.version}.
> >
> > FWIW.
> > Cheers.
> >
> > 2009/12/9 Paul Benedict <[email protected]>
> >
> > > Dana, just to clarify, he was asking about variables in dependencies.
> > > I don't think the parent is considered a <dependency> in the technical
> > > sense that Maven uses.
> > >
> > > On Tue, Dec 8, 2009 at 6:40 PM, Lacoste, Dana (TSG Software San Diego)
> > > <[email protected]> wrote:
> > > > No, with maven 2 you cannot have a variable in the parent version.
>  The
> > > string will be interpreted literally without dereferencing the variable
> > > name.
> > > >
> > > > Similarly, you can't have an empty version number: the parent MUST
> have
> > a
> > > defined version number and it MUST be absolute and not contain any
> > > variables.
> > > >
> > > > variables work fine in any other version number, however.  ranges, on
> > the
> > > other hand, do not ;)
> > > >
> > > > Dana Lacoste
> > > >
> > > > -----Original Message-----
> > > > From: [email protected] [mailto:
> [email protected]]
> > > On Behalf Of Paul Benedict
> > > > Sent: Tuesday, December 08, 2009 4:37 PM
> > > > To: Maven Users List
> > > > Subject: Re: maven 3 inheritance
> > > >
> > > >> ...and parent versions?
> > > >
> > > > Good question. You'll have to find out if the project hierarchy or
> > > > dependency resolution is processed first. Report back and tell us!
> > > >
> > > > Paul
> > > >
> > > > ---------------------------------------------------------------------
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> > > > For additional commands, e-mail: [email protected]
> > > >
> > > >
> > > > ---------------------------------------------------------------------
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> > > > For additional commands, e-mail: [email protected]
> > > >
> > > >
> > >
> > > ---------------------------------------------------------------------
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> > > For additional commands, e-mail: [email protected]
> > >
> > >
> >
> >
> > --
> > Baptiste <Batmat> MATHUS - http://batmat.net
> > Sauvez un arbre,
> > Mangez un castor !
> >
>

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