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Kent Sølvsten commented on POLYGENE-279:
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Just to be certain - are You thinking of letting Structure types be implemented as similar-to-a-transient?
I don't think it should go through a TBF. They may be similar, and the implementation will
probably be similar or even share some stuff - but on the conceptual level they are not quite
the same.
If a user somehow replaces the default TransientBuilderFacpty with his own implementation,
i think that implementation should only be used for "normal" transient and NOT for "structure
types" - even though they may have something in common.
So i simply think it would be wrong to use the transientbuilderfactory for creating structures
- and thus there should be no chicken/egg problem here?
> Custom @Structure injection types
> ---------------------------------
>
> Key: POLYGENE-279
> URL: https://issues.apache.org/jira/browse/POLYGENE-279
> Project: Polygene
> Issue Type: New Feature
> Reporter: Niclas Hedhman
>
> Use-case 1; UnitOfWorkFactory is currently depending on a UnitOfWorkFactory declaration
in every module where one need it injected, or otherwise one risk having the wrong visibility
established. The current behavior is a design flaw, not present in earlier Qi4j versions.
> Use-case 2; MetricsProvider should be able to create module-specific (or module-aware)
Metric instances, without having to be declared in every module where metrics are needed.
> Use-case 3; IdentityManager should be allowed to generate IDs that use module names,
without being declared in every module.
> Currently, we don't have any particular types that deal with @Structure injections, nothing
that holds the additional information needed. But there is a need to be both a singleton,
i.e. a Service as well as a unique object that is injected into the target composite.
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