Upgrade to 0.2.0-preview2 + add guard/tracing/async/pooling samples#15
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Bump DesignPatternsPackageVersion from 0.1.0-preview6 to 0.2.0-preview2. New feature demonstrations across 5 samples: Strategy: - Guard predicate on AlipayPayment ([RegisterStrategy(Guard=)]) - TryGetWithGuard runtime resolution - ExecuteTracedAsync with StrategyExecutionTrace (status, timing) - KeyNotFound trace for missing keys Chain: - InvokeTracedAsync with per-step status display - Exception observability: ThrowingHandler + IHandlerExceptionObserver - Failed status captured in trace before re-throw Factory: - Async factory registry (IAsyncFactoryRegistry + CreateAsync) - Pooled factory registry (IPooledFactoryRegistry with RentAsync/Return) - PooledBuffer product implementing IResettable State: - Entry/exit actions on [Transition] (OnEnter/OnExit attributes) - IStateMachine instance wrapper with CurrentState tracking - TryTransitionAsync firing entry/exit actions - TryTransitionTracedAsync with TransitionTrace observability EventAggregator: - Error isolation via ContinueOnError on PublishTracedAsync - FailingHandler demonstrating exception capture - EventPublicationTrace with HasFailures and per-step status README updated to reflect new sample capabilities. Full solution builds clean (dotnet build DesignPatterns.Samples.slnx -c Release).
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Summary
Bump
DesignPatternsPackageVersionfrom0.1.0-preview6to0.2.0-preview2and add new feature demonstrations across 5 samples to cover the 0.2.0-preview1/2 feature set.Strategy
AlipayPayment([RegisterStrategy(Guard=)])TryGetWithGuardruntime resolutionExecuteTracedAsyncwithStrategyExecutionTrace(status, timing)KeyNotFoundtrace for missing keysChain
InvokeTracedAsyncwith per-step status displayThrowingHandler+IHandlerExceptionObserverFailedstatus captured in trace before re-throwFactory
IAsyncFactoryRegistry+CreateAsync)IPooledFactoryRegistrywithRentAsync/Return)PooledBufferproduct implementingIResettableState
[Transition](OnEnter/OnExitattributes)IStateMachineinstance wrapper withCurrentStatetrackingTryTransitionAsyncfiring entry/exit actionsTryTransitionTracedAsyncwithTransitionTraceobservabilityEventAggregator
ContinueOnErroronPublishTracedAsyncFailingHandlerdemonstrating exception captureEventPublicationTracewithHasFailuresand per-step statusREADME
Updated the projects table to reflect new sample capabilities.
Test plan
dotnet build DesignPatterns.Samples.slnx -c Releasepasses (exit 0)dotnet runfor each modified sample)