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Editorial Team
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Asked: 2026-06-08T11:19:07+00:00

I have 2 spring contexts: webapplication context and a core context. The context core

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I have 2 spring contexts: “webapplication” context and a “core” context. The context “core” is initialized at server startup and attached to a Singleton class that holds the context. The “webapplication” context is initialized when the webapplication is started.

I want to inject bean dependencies from beans in one context to the other (bidirectional access). The webapplication beans are to be “session” scoped beans.

I’m testing this proof of concept with: webapp bean –> (that depends on) core bean –> (that depends on another) webapp bean.

At the webapplication context initialization i could inject “core” beans to the “webapplication” beans (a BeanFactory that acceses the singleton do the magic), but can’t figure out how to do the inverse; because the Spring ThreadLocal that holds the WebApplicationContext is not yet initialized.

The question is. Is it what i’m trying to do possible? If the answer is “yes”, how would you do that?

Thank’s in advance.

EDIT:

I’d realized i’m doing something wrong. The fact is that i’m trying to inject in the service layer a dependency to a session bean, at the wrong time; that is, at the web initialization time when i have no current user session.

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1 Answer

  1. Editorial Team

    This looks to me like an architectural issue, not a technical (and certainly not Spring) one. Your separation between core context and web context is very good. The former handles business processes while the latter is responsible for representation, maybe some API.

    The dependency from web (representation, access) to core is understandable and required – after all you are building an interface over business routines. This is how spring-mvc works by default, creating separate child (web) application context of core context.

    I can hardly imagine a use case for inverted dependency. Why is your business logic depending on web layer? What if you try to migrate your application one that to a different representation technique (desktop, mobile)? Can you justify the reason for this inverted dependency? What do you mean by session bean?

    Bidirectional dependencies, as well as static singletons holding a class-loader wide reference to application context should indicate that something is wrong with the design.

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