DevelopmentLeaseProviderGrain Class

Reference

Definition

Namespace:: Orleans.Runtime.Development

Assembly:: Orleans.Runtime.dll

Package:: Microsoft.Orleans.OrleansRuntime v2.4.5

Package:: Microsoft.Orleans.OrleansRuntime v3.6.5

Source:: InMemoryLeaseProvider.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Grain that stores lease information in memory. TODO: Consider making this a stateful grain, as a production viable implementation of lease provider that works with storage providers.

public class DevelopmentLeaseProviderGrain : Orleans.Grain, Orleans.IGrainWithIntegerKey, Orleans.LeaseProviders.ILeaseProvider, Orleans.Runtime.Development.IDevelopmentLeaseProviderGrain

type DevelopmentLeaseProviderGrain = class
    inherit Grain
    interface IDevelopmentLeaseProviderGrain
    interface ILeaseProvider
    interface IGrainWithIntegerKey
    interface IGrain
    interface IAddressable

Public Class DevelopmentLeaseProviderGrain
Inherits Grain
Implements IDevelopmentLeaseProviderGrain, IGrainWithIntegerKey, ILeaseProvider

Inheritance: Object

Grain
DevelopmentLeaseProviderGrain

Implements: IGrain IGrainWithIntegerKey ILeaseProvider IDevelopmentLeaseProviderGrain IAddressable

Constructors

DevelopmentLeaseProviderGrain()

Properties

GrainContext	(Inherited from Grain)
GrainFactory	Gets an object which can be used to access other grains. Null if this grain is not associated with a Runtime, such as when created directly for unit testing. (Inherited from Grain)
GrainReference	(Inherited from Grain)
IdentityString	String representation of grain's SiloIdentity including type and primary key. (Inherited from Grain)
RuntimeIdentity	A unique identifier for the current silo. There is no semantic content to this string, but it may be useful for logging. (Inherited from Grain)
ServiceProvider	Gets the IServiceProvider managed by the runtime. Null if this grain is not associated with a Runtime, such as when created directly for unit testing. (Inherited from Grain)

Methods

Acquire(String, LeaseRequest[])
DeactivateOnIdle()	Deactivate this activation of the grain after the current grain method call is completed. This call will mark this activation of the current grain to be deactivated and removed at the end of the current method. The next call to this grain will result in a different activation to be used, which typical means a new activation will be created automatically by the runtime. (Inherited from Grain)
DelayDeactivation(TimeSpan)	Delay Deactivation of this activation at least for the specified time duration. A positive `timeSpan` value means “prevent GC of this activation for that time span”. A negative `timeSpan` value means “cancel the previous setting of the DelayDeactivation call and make this activation behave based on the regular Activation Garbage Collection settings”. DeactivateOnIdle method would undo / override any current “keep alive” setting, making this grain immediately available for deactivation. (Inherited from Grain)
GetLogger()	Returns a logger object that this grain's code can use for tracing. The name of the logger will be derived from the grain class name. (Inherited from Grain)
GetLogger(String)	Returns a logger object that this grain's code can use for tracing. (Inherited from Grain)
GetReminder(String)	Returns a previously registered reminder. (Inherited from Grain)
GetReminders()	Returns a list of all reminders registered by the grain. (Inherited from Grain)
GetStreamProvider(String)	(Inherited from Grain)
GetStreamProviders()	(Inherited from Grain)
MigrateOnIdle()	Starts an attempt to migrating this instance to another location. Migration captures the current RequestContext, making it available to the activation's placement director so that it can consider it when selecting a new location. Migration will occur asynchronously, when no requests are executing, and will not occur if the activation's placement director does not select an alternative location. (Inherited from Grain)
OnActivateAsync()	This method is called at the end of the process of activating a grain. It is called before any messages have been dispatched to the grain. For grains with declared persistent state, this method is called after the State property has been populated. (Inherited from Grain)
OnActivateAsync(CancellationToken)	This method is called at the end of the process of activating a grain. It is called before any messages have been dispatched to the grain. For grains with declared persistent state, this method is called after the State property has been populated. (Inherited from Grain)
OnDeactivateAsync()	This method is called at the begining of the process of deactivating a grain. (Inherited from Grain)
OnDeactivateAsync(DeactivationReason, CancellationToken)	This method is called at the beginning of the process of deactivating a grain. (Inherited from Grain)
Participate(IGrainLifecycle)	(Inherited from Grain)
RegisterOrUpdateReminder(String, TimeSpan, TimeSpan)	Registers a persistent, reliable reminder to send regular notifications (reminders) to the grain. The grain must implement the `Orleans.IRemindable` interface, and reminders for this grain will be sent to the `ReceiveReminder` callback method. If the current grain is deactivated when the timer fires, a new activation of this grain will be created to receive this reminder. If an existing reminder with the same name already exists, that reminder will be overwritten with this new reminder. Reminders will always be received by one activation of this grain, even if multiple activations exist for this grain. (Inherited from Grain)
RegisterTimer(Func<Object,Task>, Object, TimeSpan, TimeSpan)	Obsolete. Registers a timer to send periodic callbacks to this grain. (Inherited from Grain)
Release(String, AcquiredLease[])
Renew(String, AcquiredLease[])
Reset()
UnregisterReminder(IGrainReminder)	Unregisters a previously registered reminder. (Inherited from Grain)

Extension Methods

AsReference<TGrainInterface>(IAddressable)	Returns a typed reference to the provided grain.
BindGrainReference(IAddressable, IGrainFactory)	Binds the grain reference to the provided IGrainFactory.
Cast(IAddressable, Type)	Returns a typed reference to the provided grain.
Cast<TGrainInterface>(IAddressable)	Returns a typed reference to the provided grain.
GetGrainIdentity(IGrain)
GetPrimaryKey(IGrain, String)
GetPrimaryKey(IGrain)
GetPrimaryKey(IAddressable, String)	Returns the Guid representation of a grain primary key.
GetPrimaryKey(IAddressable)	Returns the Guid representation of a grain primary key.
GetPrimaryKeyLong(IGrain, String)
GetPrimaryKeyLong(IGrain)
GetPrimaryKeyLong(IAddressable, String)	Returns the `long` representation of a grain primary key.
GetPrimaryKeyLong(IAddressable)	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`.
GetLogger(Grain, String)	Returns a logger object that this grain's code can use for tracing.
GetLogger(Grain)	Returns a logger object that this grain's code can use for tracing. The name of the logger will be derived from the grain class name.
GetGrainStorage(Grain, IServiceProvider)	Acquire the storage provider associated with the grain type.

Applies to

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