1f011467b8
As a follow-up of the ApplicationContext Kotlin extensions, close to
the Kotlin functional WebFlux DSL and partially inspired of the
Groovy/Scala bean configuration DSL, this commit introduces a
lightweight Kotlin DSL for functional bean declaration.
It allows declaring beans as following:
beans {
bean<Foo>()
profile("bar") {
bean<Bar>("bar", scope = Scope.PROTOTYPE)
}
environment({ it.activeProfiles.contains("baz") }) {
bean { Baz(it.ref()) }
bean { Baz(it.ref("bar")) }
}
}
Advantages compared to Regular ApplicationContext API are:
- No exposure of low-level ApplicationContext API
- Focused DSL easier to read, but also easier to write with a fewer
entries in the auto-complete
- Declarative syntax instead of functions with verbs like registerBeans
while still allowing programmatic registration of beans if needed
- Such DSL is idiomatic in Kotlin
- No need to have an ApplicationContext instance to write how you
register your beans since beans { } DSL is conceptually a
Consumer<GenericApplicationContext>
This DSL effectively replaces ApplicationContext Kotlin extensions as
the recommended way to register beans in a functional way with Kotlin.
Issue: SPR-15755
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