Yes, I would tend to agree that this noted cell should be 'runtime'. The case where there's a dependency to a class (B) that extends one from another library (C) makes my code compile dependent on that library (C). I think my project needs to keep track of the version of library C to avoid surprises when changes happen. But others may disagree :-)
On Sun, Nov 30, 2008 at 1:24 AM, Mohan K R <[EMAIL PROTECTED]> wrote: > Thanks Walid. I think this is where my confusion is, the default scope is > compile. And > as per the matrix on the maven site it has an asterik describing the scope > resolution. > (for transitive dependencies) > > quote from docs: ( > > http://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html > ) > > *(*) Note:* it is intended that this should be runtime scope instead, so > that all compile dependencies must be explicitly listed - however, there is > the case where the library you depend on extends a class from another > library, forcing you to have available at compile time. For this reason, > compile time dependencies remain as compile scope even when they are > transitive. > > The above is the explanation for compile time dependency, as per above, it > should not > be runtime scope in C as you described or am I interpreting this wrong? It > appears that > if your explanation is right, then the doc should change that to runtime, > at > least that > is what appears to be the behaviour in Maven 2.0.9. > > > Thanks again > > > > On Sat, Nov 29, 2008 at 6:08 PM, Walid jo Gedeon <[EMAIL PROTECTED]> > wrote: > > > Hello Mohan, > > > > In more technical jargon, log4j in your example is a compile time > > dependency > > of A, and only a runtime dependency of C, which means that if you want to > > make log4j calls in C, you need to declare it as a compile time > dependency > > (default scope). > > > > HTH, > > w > > > > On Sun, Nov 30, 2008 at 12:20 AM, Mohan K R <[EMAIL PROTECTED]> wrote: > > > > > It appears that I'm missing something critical here, so please help me > > out. > > > I have a standard > > > multi-module project like this. (I'm using Maven 2.0.9, JDK5). > > > > > > parent (P) - > > > |- module A > > > |- module B > > > |- module C > > > > > > > > > A,B,C all inherit from the parent P. > > > > > > Now in my parent POM (P): I have a dependencyManagement section in the > > POM. > > > <depedencyManagement> > > > <dependencies> > > > <dependency> > > > <groupId>log4j</groupId> > > > <artifactId>log4j</artifactId> > > > <version>1.2.14</version> > > > <dependency> > > > <... bunch of others ...> > > > <dependencies> > > > </dependencyManagement> > > > > > > Now in module A (I have a dependency on log4j), so only thing that I > > > provide > > > is (notice no version): > > > > > > <dependencies> > > > <dependency> > > > <groupId>log4j</groupId> > > > <artifactId>log4j</artifactId> > > > <dependency> > > > <... bunch of others ...> > > > <dependencies> > > > > > > Now in module B depends on module A so I have this in my dependency: > > > <dependencies> > > > <dependency> > > > <groupId>${project.groupId}</groupId> > > > <artifactId>module_A</artifactId> <!-- NOTICE MODULE A --> > > > <version>${project.version}</version> > > > <dependency> > > > <... bunch of others ...*but no log4j*> > > > <dependencies> > > > NOTE: I do use log4j in B, but it got transitively pulled in. So far so > > > good. > > > > > > Now Module C, depends on Module B. So what I have is: > > > <dependencies> > > > <dependency> > > > <groupId>${project.groupId}</groupId> > > > <artifactId>module_B</artifactId> <!-- NOTICE > MODULE > > B > > > --> > > > <version>${project.version}</version> > > > <dependency> > > > <... bunch of others ...> > > > <dependencies> > > > Now, I do use some log4j calls (LogFactory), but for some reason log4j > > does > > > not > > > get pulled in transitively??? I have to explicitly give a dependency on > > > log4j *or* > > > module_A to get it to compile?? > > > > > > My first that was, all transitive dependencies on module_B should get > > > pulled > > > in which > > > means module_A and in turn its transitive dependency log4j. But nothing > > of > > > this sort > > > is happening? Any ideas? Is it the dependecyManagement section (which > has > > > the version) > > > that is messing me up, since C does inherit from P? > > > > > > Thanks > > > Mohan K > > > > > >
