Hi George,

As I mentioned, I am using Eclipselink and have directly the dependency org.eclipse.persistence:eclipselink. On top of that, I don't have the Java EE API dependency. My persistence.xml is fine.

What I really want here is when I add a new field Forge to find out that this project has already persistence.xml and not try to rebuild it just because I am missing some dependencies in the pom.xml.

Cheers,

Ivan

On Mon, Jul 6, 2015 at 11:19 PM, George Gastaldi <ggastald@redhat.com> wrote:

Hey Ivan,

It seems that in your case the JPA 2.0 classes are defined in a different JAR (a different groupId/artifactId) ?
Your idea might work, however, just make sure that the version attribute in the persistence.xml defines the installed facet version (JPAFacet_2_0 when version="2.0" and JPAFacet_2_1 when version="2.1").

Best Regards,
George Gastaldi
On 07/06/2015 05:13 PM, Ivan St. Ivanov wrote:
Hi George,

My idea is the following: if you don't have persistence.xml, then most probably you don't have the dependencies either. Definitely the facet is not installed, so Forge installs it for you by adding both the persistence.xml and the dependencies.

But if you have persistence.xml already in your project in 99% of the cases you have already setup the dependencies as well. So the facet is there and Forge does not need to install it.

Regards,

Ivan
On Mon, Jul 6, 2015 at 11:06 PM, George Gastaldi <ggastald@redhat.com> wrote:
Hi Ivan,

I am not sure this is enough. How can you assure that no compilation errors would occur when @Entity or any other JPA-related class is used?

Best Regards,

George Gastaldi

On 07/06/2015 05:02 PM, Ivan St. Ivanov wrote:
Hi everybody,

I am working on a project that is not mainstream Java EE. Its target is Tomcat, but it uses JPA 2.0 (Eclipselink). I have tailored the dependencies in the pom.xml as well as the persistence.xml.

And now I want to use Forge to add some fields to the existing entities. What I noticed is that when I run the jpa-new-field command for the first time, it also installs the JPA facet. Which in turns adds some unwanted dependencies to my pom.xml and completely overwrites persistence.xml.

I dig into the code and found that the isInstalled method of the JPA Facet returns true when persistence.xml file does not exist and when pom.xml does not contain some dependencies. These dependencies are different for JPA 2.0 and 2.1, but are basically Hibernate JPA API and the Java EE API.

As a result of this, projects that don't target Java EE or that use different artifacts for it or for JPA are going to get their poms polluted and their persistence.xml files overwritten.

So my proposal is to change the isInstalled method to only check for the presence of persistence.xml. What do you think?

Regards,

Ivan
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