GrainService Class

Definition

Namespace:

Orleans.Runtime

Assembly:

Orleans.Runtime.dll

Package:

Microsoft.Orleans.Runtime v8.0.0

Base class for implementing a grain-like partitioned service with per silo instances of it automatically instantiated and started by silo runtime

public abstract class GrainService : Orleans.Runtime.SystemTarget, Orleans.Services.IGrainService

type GrainService = class
    inherit SystemTarget
    interface IGrainService
    interface ISystemTarget
    interface IAddressable

Public MustInherit Class GrainService
Inherits SystemTarget
Implements IGrainService

Inheritance

Object

SystemTarget

GrainService

Implements

ISystemTarget IAddressable IGrainService

Constructors

GrainService()	Only to make Reflection happy. Do not use it in your implementation
GrainService(GrainId, Silo, ILoggerFactory)	Constructor to use for grain services

Properties

ActivationServices	Gets the IServiceProvider that provides access to the grain activation's service container. (Inherited from SystemTarget)
Deactivated	Gets the Task which completes when the grain has deactivated. (Inherited from SystemTarget)
GrainId	Gets the grain identity. (Inherited from SystemTarget)
GrainReference	Gets a reference to this grain. (Inherited from SystemTarget)
IsLowPriority	(Inherited from SystemTarget)
RangeSerialNumber	Gets the monotonically increasing serial number of the version of the ring range owned by the grain service instance
RingRange	Gets the range of the partitioning ring currently owned by the grain service instance
Scheduler	Gets the scheduler. (Inherited from SystemTarget)
Silo	Silo address of the system target. (Inherited from SystemTarget)
Status	Gets the status of the grain service instance
StoppedCancellationTokenSource	Gets the token for signaling cancellation upon stopping of grain service

Methods

Activate(Dictionary<String,Object>, Nullable<CancellationToken>)	Start activating this instance. (Inherited from SystemTarget)
Deactivate(DeactivationReason, Nullable<CancellationToken>)	Start deactivating this instance. (Inherited from SystemTarget)
Dispose()	(Inherited from SystemTarget)
GetComponent<TComponent>()	Gets the component with the specified type. (Inherited from SystemTarget)
GetExtension<TExtensionInterface>()	Returns the grain extension registered for the provided TExtensionInterface. (Inherited from SystemTarget)
GetOrSetExtension<TExtension,TExtensionInterface>(Func<TExtension>)	Binds an extension to an addressable object, if not already done. (Inherited from SystemTarget)
GetTarget<TTarget>()	Gets the target. (Inherited from SystemTarget)
Init(IServiceProvider)	Invoked upon initialization of the service
Migrate(Dictionary<String,Object>, Nullable<CancellationToken>)	(Inherited from SystemTarget)
OnRangeChange(IRingRange, IRingRange, Boolean)	Invoked when the ring range owned by the service instance changes because of a change in the cluster state
ReceiveMessage(Object)	Submits an incoming message to this instance. (Inherited from SystemTarget)
RegisterTimer(Func<Object,Task>, Object, TimeSpan, TimeSpan, String)	Registers a timer to send regular callbacks to this grain. This timer will keep the current grain from being deactivated. (Inherited from SystemTarget)
Rehydrate(IRehydrationContext)	(Inherited from SystemTarget)
SetComponent<TComponent>(TComponent)	Sets the provided value as the component for type TComponent. (Inherited from SystemTarget)
Start()	Invoked when service is being started
StartInBackground()	Deferred part of initialization that executes after the service is already started (to speed up startup). Sets Status to Started.
Stop()	Invoked when service is being stopped
ToString()	Override of object.ToString() (Inherited from SystemTarget)

Explicit Interface Implementations

IEquatable<IGrainContext>.Equals(IGrainContext)	(Inherited from SystemTarget)
IFormattable.ToString(String, IFormatProvider)	(Inherited from SystemTarget)
IGrainContext.ActivationId	Gets the activation id. (Inherited from SystemTarget)
IGrainContext.Address	Gets the activation address. (Inherited from SystemTarget)
IGrainContext.GrainInstance	Gets the grain instance, or null if the grain instance has not been set yet. (Inherited from SystemTarget)
IGrainContext.ObservableLifecycle	Gets the observable Grain lifecycle, which can be used to add lifecycle hooks. (Inherited from SystemTarget)
ISpanFormattable.TryFormat(Span<Char>, Int32, ReadOnlySpan<Char>, IFormatProvider)	(Inherited from SystemTarget)
ITargetHolder.GetComponent<TComponent>()	Gets the component with the specified type. (Inherited from SystemTarget)

Extension Methods

GetGrainExtension<TComponent>(IGrainContext)	Used by generated code for IGrainExtension interfaces.
AsReference(IAddressable, Type)	Returns a typed reference to the provided grain.
AsReference<TGrainInterface>(IAddressable)	Returns a typed reference to the provided grain.
Cast(IAddressable, Type)	Returns a typed reference to the provided grain.
Cast<TGrainInterface>(IAddressable)	Returns a typed reference to the provided grain.
GetGrainId(IAddressable)	Returns the grain id corresponding to the provided grain.
GetPrimaryKey(IAddressable)	Returns the Guid representation of a grain primary key.
GetPrimaryKey(IAddressable, String)	Returns the Guid representation of a grain primary key.
GetPrimaryKeyLong(IAddressable)	Returns the long representation of a grain primary key.
GetPrimaryKeyLong(IAddressable, String)	Returns the long representation of a grain primary key.
GetPrimaryKeyString(IAddressable)	Returns the string primary key of the grain.
IsPrimaryKeyBasedOnLong(IAddressable)	Returns whether part of the primary key is of type long.
DeactivateAsync(IGrainContext, DeactivationReason, Nullable<CancellationToken>)	Deactivates the provided grain.