public virtual Task <TResult> ExecuteAsync <TResult>(Expression query, CancellationToken cancellationToken)
{
Check.NotNull(query, nameof(query));
var queryContext = _queryContextFactory.Create();
queryContext.CancellationToken = cancellationToken;
query = ExtractParameters(query, queryContext);
try
{
return(CompileAsyncQuery <TResult>(query)(queryContext).First(cancellationToken));
}
catch (Exception exception)
{
_logger
.LogError(
CoreLoggingEventId.DatabaseError,
() => new DatabaseErrorLogState(_contextType),
exception,
e => CoreStrings.LogExceptionDuringQueryIteration(Environment.NewLine, e));
throw;
}
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual IAsyncEnumerable <TResult> ExecuteAsync <TResult>(Expression query)
{
Check.NotNull(query, nameof(query));
var queryContext = _queryContextFactory.Create();
query = ExtractParameters(query, queryContext);
return(CompileAsyncQuery <TResult>(query)(queryContext));
}
public virtual Task <TResult> ExecuteAsync <TResult>(Expression query, CancellationToken cancellationToken)
{
Check.NotNull(query, nameof(query));
var queryContext = _contextFactory.Create();
queryContext.CancellationToken = cancellationToken;
query = Preprocess(query, queryContext);
return(CompileAsyncQuery <TResult>(query)(queryContext)
.First(cancellationToken));
}
