Class FuncFetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult>

Namespace

Whipstaff.MediatR.EntityFrameworkCore

Assembly

Whipstaff.MediatR.EntityFrameworkCore.dll

MediatR request handler for acting on an entity framework dbset.

public sealed class FuncFetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult> : FetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult>, IQueryHandler<TQuery, TResult?>, IRequestHandler<TQuery, TResult?> where TQuery : IQuery<TResult>, ILongId where TDbContext : DbContext where TEntity : class, ILongId

Type Parameters

TQuery

The type for the MediatR Query.

TDbContext

The type for the Entity Framework DB Context.

TEntity

The type for the POCO object.

TResult

The type for the Result.

Inheritance

object

FetchFromEntityFrameworkQueryHandler<TQuery, TDbContext, TEntity, TResult, TResult>

FetchFromEntityFrameworkQueryHandler<TQuery, TDbContext, TEntity, TResult>

FetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult>

FuncFetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult>

Implements

IQueryHandler<TQuery, TResult>

IRequestHandler<TQuery, TResult>

Inherited Members

FetchFromEntityFrameworkQueryHandler<TQuery, TDbContext, TEntity, TResult, TResult>.Handle(TQuery, CancellationToken)

object.GetType()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Constructors

FuncFetchFromEntityFrameworkByLongIdQueryHandler(IDbContextFactory<TDbContext>, Func<TDbContext, DbSet<TEntity>>, Expression<Func<TEntity, TResult?>>)

Initializes a new instance of the FuncFetchFromEntityFrameworkByLongIdQueryHandler<TQuery, TDbContext, TEntity, TResult> class.

public FuncFetchFromEntityFrameworkByLongIdQueryHandler(IDbContextFactory<TDbContext> dbContextFactory, Func<TDbContext, DbSet<TEntity>> dbSetFunc, Expression<Func<TEntity, TResult?>> selector)

Parameters

dbContextFactory IDbContextFactory<TDbContext>

The factory for the database context.

dbSetFunc Func<TDbContext, DbSet<TEntity>>

Function for selecting the DBSet from the Entity Framework Context.

selector Expression<Func<TEntity, TResult>>

Selector for the result output.

Methods

ExtendQueryable(IQueryable<TEntity>)

Allows extension of the query, for example to add includes.

protected override IQueryable<TEntity> ExtendQueryable(IQueryable<TEntity> queryable)

Parameters

queryable IQueryable<TEntity>

queryable to extend.

Returns

IQueryable<TEntity>

Modified queryable, or original queryable if not modifying.

GetDbSet(TDbContext)

Gets the DBSet from the DBContext that contains the relevant entity.

protected override DbSet<TEntity> GetDbSet(TDbContext dbContext)

Parameters

dbContext TDbContext

Database Context.

Returns

DbSet<TEntity>

DBSet from the DBContext that contains the relevant entity.

GetSelector()

Gets the Selector for the result output from the query.

protected override Expression<Func<TEntity, TResult?>> GetSelector()

Returns

Expression<Func<TEntity, TResult>>

Selector for the result output from the query.