The easiest way to integrate Spring and Seam, that I've found, is to use a JSF
variable resolver and only have the dependencies go from Seam to Spring.
In the presentation tier, you can use Seam to manage your controllers (and
conversations and lots of other good stuff). In the backend tier you can use
Spring to manage your stateless services (Daos, Repositories, any Service).
Then, you can inject your services into your Seam controllers using the Seam
@In(#{mySpringService}) notation. Seam recognizes JSF expressions.
Spring ships with a JSF variable resolver. You just need to register it in
your faces-config.xml.
<variable-resolver>org.springframework.web.jsf.DelegatingVariableResolver</variable-resolver>
You can use Spring to manage your services (instead of using Stateless Session
beans, for example), you can use Seam to manage your controllers (aka JSF
managed-beans) and conversations. So the Seam components can reference Spring
components, but Spring components cannot reference Spring components.
I hope this helps.
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