Add WithAlternateSession to SliceGroup enrichment chain#195
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jeremydmiller merged 2 commits intoJasperFx:mainfrom Apr 28, 2026
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… store support (marten#4300)
- Add IServiceProvider? Services { get; } default member to IStorageOperations
- Add disposeAfterUse flag through EntityStep/EventStep/IdentityStep chain
- Add WithAlternateSession(IStorageOperations) on EntityStep — swaps session with dispose-after-use semantics
- IdentityStep.FetchEntitiesAsync disposes session in finally block when disposeAfterUse=true
- Add WithAlternateSessionTests covering: alternate storage used, session disposed, no-match dispose, primary not disposed, AddReferences via alternate
…e enrichment Resolves a Func<TStore, IStorageOperations> factory and the store itself from the session's ServiceProvider, then delegates to WithAlternateSession. This allows the call site to specify only the store type (.UsingStore<IProductStore>()) without phantom types or constructor injection.
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Summary
Enables declarative enrichment from ancillary stores by extending the
EnrichWith<T>()fluent chain inSliceGroup.IServiceProvider? Services { get; }default member toIStorageOperationsso Marten extensions can resolve DI services from the sessiondisposeAfterUseflag throughEntityStep→EventStep→IdentityStep; the alternate session is disposed in afinallyblock after enrichment completesEntityStep<TEntity>.WithAlternateSession(IStorageOperations)— redirects enrichment loading to a different session with automatic dispose-after-use semantics; the primary store session is never disposedfindCache<TEntityId, TEntity>()is still called first; the alternate session is only hit on cache missesWithAlternateSessionTests(5 tests) covering: alternate storage used, session disposed, session disposed on no-match, primary not disposed,AddReferencesvia alternateRelated
Marten feature request: JasperFx/marten#4300