Class DbContextEventsPublisher

Exposes some methods to handle domain events as part of the SaveChanges transaction.

Inheritance

object

DbContextEventsPublisher

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: Silverback.EntityFrameworkCore

Assembly: Silverback.Core.EFCore30.dll

Syntax

public class DbContextEventsPublisher

Constructors

DbContextEventsPublisher(IPublisher, DbContext)

Initializes a new instance of the DbContextEventsPublisher class.

Declaration

public DbContextEventsPublisher(IPublisher publisher, DbContext dbContext)

Parameters

Type	Name	Description
IPublisher	publisher	The IPublisher to be used to publish the events to the internal bus.
DbContext	dbContext	The DbContext to be scanned for domain events.

DbContextEventsPublisher(Func<object, IEnumerable<object>?>, Action<object>, IPublisher, DbContext)

Initializes a new instance of the DbContextEventsPublisher class.

Declaration

public DbContextEventsPublisher(Func<object, IEnumerable<object>?> eventsSelector, Action<object> clearEventsAction, IPublisher publisher, DbContext dbContext)

Parameters

Type	Name	Description
Func<object, IEnumerable<object>>	eventsSelector	The custom delegate to be used to get the events out of the entities being saved.
Action<object>	clearEventsAction	The custom delegate to be used to clear the events from the entities after they have been published.
IPublisher	publisher	The IPublisher to be used to publish the events to the internal bus.
DbContext	dbContext	The DbContext to be scanned for domain events.

Methods

ExecuteSaveTransaction(Func<int>)

Publishes the domain events generated by the tracked entities and then executes the provided save changes procedure.

Declaration

public int ExecuteSaveTransaction(Func<int> saveChanges)

Parameters

Type	Name	Description
Func<int>	saveChanges	The delegate to the original SaveChanges method.

Returns

Type	Description
int	The number of entities saved to the database.

ExecuteSaveTransactionAsync(Func<Task<int>>)

Publishes the domain events generated by the tracked entities and then executes the provided save changes procedure.

Declaration

public Task<int> ExecuteSaveTransactionAsync(Func<Task<int>> saveChangesAsync)

Parameters

Type	Name	Description
Func<Task<int>>	saveChangesAsync	The delegate to the original SaveChangesAsync method.

Returns

Type	Description
Task<int>	A Task<TResult> representing the asynchronous operation. The task result contains the number of entities saved to the database.