LogStateWithMetaData<TEntry> Class

Reference

Definition

Namespace:: Orleans.EventSourcing.LogStorage

Assembly:: OrleansEventSourcing.dll

Assembly:: Orleans.EventSourcing.dll

Package:: Microsoft.Orleans.EventSourcing v1.5.10

Package:: Microsoft.Orleans.EventSourcing v2.4.5

Package:: Microsoft.Orleans.EventSourcing v3.6.5

Package:: Microsoft.Orleans.EventSourcing v7.2.5

Package:: Microsoft.Orleans.EventSourcing v8.0.0

Package:: Microsoft.Orleans.EventSourcing v8.1.0

Package:: Microsoft.Orleans.EventSourcing v8.2.0

Package:: Microsoft.Orleans.EventSourcing v9.0.0

Package:: Microsoft.Orleans.EventSourcing v9.1.2

Source:: LogStateWithMetaData.cs

Important

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A class that extends grain state with versioning metadata, so that a log-consistent grain can use a standard storage provider.

[System.Serializable]
public class LogStateWithMetaData<TEntry> where TEntry : class

[System.Serializable]
[Orleans.GenerateSerializer]
public sealed class LogStateWithMetaData<TEntry> where TEntry : class

[<System.Serializable>]
type LogStateWithMetaData<'Entry (requires 'Entry : null)> = class

[<System.Serializable>]
[<Orleans.GenerateSerializer>]
type LogStateWithMetaData<'Entry (requires 'Entry : null)> = class

Public Class LogStateWithMetaData(Of TEntry)

Public NotInheritable Class LogStateWithMetaData(Of TEntry)

Type Parameters

TEntry

Inheritance: Object
LogStateWithMetaData<TEntry>

Attributes: SerializableAttribute GenerateSerializerAttribute

Constructors

LogStateWithMetaData<TEntry>()

Initializes a new instance of the LogStateWithMetaData<TEntry> class.

Properties

GlobalVersion	The length of the log
Log	The stored view of the log
WriteVector	Metadata that is used to avoid duplicate appends. Logically, this is a (string->bit) map, the keys being replica ids But this map is represented compactly as a simple string to reduce serialization/deserialization overhead Bits are read by GetBit(String) and flipped by FlipBit(String). Bits are toggled when writing, so that the retry logic can avoid appending an entry twice when retrying a failed append.

Methods

FlipBit(String)	Toggle one of the bits in WriteVector and return the new value.
GetBit(String)	Gets one of the bits in WriteVector

Applies to

Tuote	Versiot
.NET Orleans	1.5.10, 3.4.5, 3.6.0, 7.0.0, 8.0.0, 8.1.0, 8.2.0, 9.0.0

Jaa