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https://issues.apache.org/jira/browse/POLYGENE-279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16275747#comment-16275747
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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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