Class FindCommandBase<TFindContext>

Base class for find commands.

Inheritance

System.Object

Loggable

DataCommandBase<TFindContext, IFindResult>

FindCommandBase<TFindContext>

FindCommand

FindOneCommand

Implements

ILoggable

IDataCommand<TFindContext, IFindResult>

IDataCommand

IAsyncOperation

Inherited Members

DataCommandBase<TFindContext, IFindResult>.ExecuteAsync(TFindContext, CancellationToken)

DataCommandBase<TFindContext, IFindResult>.IDataCommand.ExecuteAsync(IDataOperationContext, CancellationToken)

DataCommandBase<TFindContext, IFindResult>.IAsyncOperation.ExecuteAsync(IContext, CancellationToken)

DataCommandBase<TFindContext, IFindResult>.GetIdEqualityExpression<T>(IDataContext, Object)

DataCommandBase<TFindContext, IFindResult>.TryGetLocalCache(IDataContext)

DataCommandBase<TFindContext, IFindResult>.TryGetEntityActivator(IDataContext)

Loggable.Logger

Loggable.GetLogger()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Kephas.Data.Commands

Assembly: Kephas.Data.dll

Syntax

public abstract class FindCommandBase<TFindContext> : DataCommandBase<TFindContext, IFindResult>, ILoggable, IDataCommand<TFindContext, IFindResult>, IDataCommand, IAsyncOperation where TFindContext : class, IFindContextBase

Type Parameters

Name	Description
TFindContext	Type of the find context.

Methods

ExecuteAsync(TFindContext, CancellationToken)

Executes the data command asynchronously.

Declaration

public override Task<IFindResult> ExecuteAsync(TFindContext operationContext, CancellationToken cancellationToken = default(CancellationToken))

Parameters

Type	Name	Description
TFindContext	operationContext	The operation context.
System.Threading.CancellationToken	cancellationToken	The cancellation token (optional).

Returns

Type	Description
System.Threading.Tasks.Task<IFindResult>	A promise of a IDataCommandResult.

Overrides

Kephas.Data.Commands.DataCommandBase<TFindContext, Kephas.Data.Commands.IFindResult>.ExecuteAsync(TFindContext, System.Threading.CancellationToken)

FindAsync<T>(TFindContext, CancellationToken)

Searches for the first entity matching the provided criteria and returns it asynchronously.

Declaration

protected virtual Task<IFindResult> FindAsync<T>(TFindContext findContext, CancellationToken cancellationToken)

    where T : class

Parameters

Type	Name	Description
TFindContext	findContext	The find context.
System.Threading.CancellationToken	cancellationToken	The cancellation token (optional).

Returns

Type	Description
System.Threading.Tasks.Task<IFindResult>	A promise of the found entity.

Type Parameters

Name	Description
T	The type of the entity.

GetCriteriaString<T>(TFindContext, Expression<Func<T, Boolean>>)

Gets the criteria string for exception display.

Declaration

protected virtual string GetCriteriaString<T>(TFindContext findContext, Expression<Func<T, bool>> criteria)

Parameters

Type	Name	Description
TFindContext	findContext	The find context.
System.Linq.Expressions.Expression<System.Func<T, System.Boolean>>	criteria	The criteria.

Returns

Type	Description
System.String	The criteria string.

Type Parameters

Name	Description
T	The entity type.

GetFindCriteria<T>(TFindContext)

Gets the find criteria.

Declaration

protected abstract Expression<Func<T, bool>> GetFindCriteria<T>(TFindContext findContext)

    where T : class

Parameters

Type	Name	Description
TFindContext	findContext	The find context.

Returns

Type	Description
System.Linq.Expressions.Expression<System.Func<T, System.Boolean>>	The find criteria.

Type Parameters

Name	Description
T	The entity type.

GetFindResult<T>(TFindContext, IList<T>, Expression<Func<T, Boolean>>)

Gets the find result out of the results.

Declaration

protected virtual IFindResult GetFindResult<T>(TFindContext findContext, IList<T> result, Expression<Func<T, bool>> criteria)

    where T : class

Parameters

Type	Name	Description
TFindContext	findContext	The find context.
System.Collections.Generic.IList<T>	result	The result.
System.Linq.Expressions.Expression<System.Func<T, System.Boolean>>	criteria	The criteria.

Returns

Type	Description
IFindResult	The find result.

Type Parameters

Name	Description
T	The entity type.

TryGetLocalCacheQuery<T>(TFindContext)

Tries to get a query over the local cache entities of a particular type.

Declaration

protected virtual IEnumerable<T> TryGetLocalCacheQuery<T>(TFindContext findContext)

    where T : class

Parameters

Type	Name	Description
TFindContext	findContext	The find context.

Returns

Type	Description
System.Collections.Generic.IEnumerable<T>	A query of local cache entities.

Type Parameters

Name	Description
T	The entity type.

Implements

ILoggable

IDataCommand<TOperationContext, TResult>

IDataCommand

IAsyncOperation

Extension Methods

DynamicObjectExtensions.SetPropertyValue(Object, String, Object)

DynamicObjectExtensions.TrySetPropertyValue(Object, String, Object)

DynamicObjectExtensions.GetPropertyValue(Object, String)

DynamicObjectExtensions.TryGetPropertyValue(Object, String, out Object)

DynamicObjectExtensions.GetRuntimeTypeInfo(Object)

DynamicObjectExtensions.ToDynamic(Object)

DynamicObjectExtensions.ToExpando(Object)

BehaviorValue.ToBehaviorValue<TValue>(TValue)

CollectionExtensions.AddRange<T, TItem>(T, IEnumerable<TItem>)

LoggingExtensions.GetLogger(Object, IContext)

TypeExtensions.GetAbstractType(Object)

TypeExtensions.GetAbstractTypeInfo(Object)

ReflectionHelper.GetTypeInfo(Object)

EntityEntryExtensions.TryGetAttachedEntityEntry(Object)