CosmosGrainStorage Methods

Supports all classes in the .NET class hierarchy and provides low-level services to derived classes. This is the ultimate base class of all .NET classes; it is the root of the type hierarchy.

ClearStateAsync(string, GrainId, IGrainState<T>)

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public Task ClearStateAsync<T>(string grainType, GrainId grainId, IGrainState<T> grainState)

Delete / Clear data function for this storage instance.

Parameters

grainTypestring: Name of the state for this grain
grainIdGrainId: Grain ID
grainStateIGrainState<T>: Copy of last-known state data object for this grain.

Returns

Completion promise for the Delete operation on the specified grain.

Participate(ISiloLifecycle)

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public void Participate(ISiloLifecycle lifecycle)

Adds the provided observer as a participant in the lifecycle.

Parameters

lifecycleISiloLifecycle: The observer.

ReadStateAsync(string, GrainId, IGrainState<T>)

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public Task ReadStateAsync<T>(string grainType, GrainId grainId, IGrainState<T> grainState)

Read data function for this storage instance.

Parameters

grainTypestring: Name of the state for this grain
grainIdGrainId: Grain ID
grainStateIGrainState<T>: State data object to be populated for this grain.

Returns

Completion promise for the Read operation on the specified grain.

WriteStateAsync(string, GrainId, IGrainState<T>)

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public Task WriteStateAsync<T>(string grainType, GrainId grainId, IGrainState<T> grainState)

Write data function for this storage instance.

Parameters

grainTypestring: Name of the state for this grain
grainIdGrainId: Grain ID
grainStateIGrainState<T>: State data object to be written for this grain.

Returns

Completion promise for the Write operation on the specified grain.