Migrating from Seam 2.2.1 to Seam 3.0.0.CR1

[manjupriya]

I am migrating my current application from Seam 2.2.1 to Seam 3.0.0.CR1. I am not able to compile as its not finding the core classes like org.jboss.seam.ScopeType, org.jboss.seam.annotations, org.jboss.seam.contexts.Contexts.

My pom.xml is

                <dependency>
                   <groupId>org.jboss.seam.faces</groupId>
                   <artifactId>seam-faces</artifactId>
                   <version>3.0.0.CR1</version>
                </dependency>     
                <dependency>
                   <groupId>org.jboss.seam.validation</groupId>
                   <artifactId>seam-validation</artifactId>
                   <version>3.0.0.CR1</version>
                </dependency>   
                <dependency>
                   <groupId>org.jboss.seam.security</groupId>
                   <artifactId>seam-security</artifactId>
                   <version>3.0.0.CR1</version>
                </dependency>   
        <dependency>
            <groupId>org.jboss.seam.catch</groupId>
            <artifactId>seam-catch</artifactId>
            <version>3.0.0.CR1</version>
        </dependency>
                <dependency>
                   <groupId>org.jboss.seam.config</groupId>
                   <artifactId>seam-config-xml</artifactId>
                   <version>3.0.0.CR1</version>
                   <scope>runtime</scope>
                </dependency>


I tried using the following also, but no result:


        <dependencyManagement>
           <dependencies>
              <dependency>
                 <groupId>org.jboss.seam</groupId>
                 <artifactId>seam-bom</artifactId>
                 <version>3.0.0.b09</version>
                 <scope>import</scope>
                 <type>pom</type>
               </dependency>
           </dependencies>
        </dependencyManagement>


Can someone please direct me?

[lightguard]

Many of those classes do not exist in Seam 3. This is not a drop in the new jars and upgrade migration. We're working on a migration strategy.

[manjupriya]

Is there any set timeline for the migration guide?
For now, is there anyway I can proceed with Seam 3?

[ssachtleben.ssachtleben.gmail.com]

Migration is not that easy. I have also migrated a full webapplication from seam 2.2.0 to 3.0.0 and there are several parts to rewrite. Also some parts are not covered by seam 3 yet. Currently I suggest to stick with seam 2 on older projects and just use seam 3 on new projects.

[manjupriya]

We are doing this massive upgrade of all technologies for a web application. Just finished with the Hibernate, Spring and Aspect upgrades for the services layer. Web layer uses My Faces and Seam. I have migrated to Hibernate Validator 4.x and b'coz seam 2.x is tied to Hibernate validator 3.x versions, I have to migrate it to Seam 3.x.

We have been given a set deadline for this whole upgrades and I can't go back on Hibernate version, as it would be 2 months of my wasted time.

Is it possible to outline the major changes that has to be done for Seam 3.x?

[zeeman]

It would be great to have a migration guide that shows in details how to migrate from Seam 2.2 to Seam 3.x.

I have talked to Dan Allen and provided him with some requirements. To see them or to add your own see
http://seam-framework.2283336.n4.nabble.com/what-s-your-vision-of-an-ideal-migration-guide-td3323689.html