public async Task <IReadOnlyCollection <TEntity> > Where <TEntity>(
IExpSpecification <TEntity> specification,
CancellationToken cancellationToken)
where TEntity : Entity
{
if (specification == null)
{
throw new ArgumentNullException(nameof(specification));
}
if (cancellationToken == null)
{
throw new ArgumentNullException(nameof(cancellationToken));
}
if (specification.Criteria == null)
{
throw new ArgumentNullException(nameof(specification));
}
var query = ConstructQueryFromSpecification(specification);
return(await query.Where(specification.Criteria).ToListAsync(cancellationToken));
}
public async Task <TEntity> FirstOrDefault <TEntity>(
IExpSpecification <TEntity> specification,
CancellationToken cancellationToken)
where TEntity : Entity
{
if (specification == null)
{
throw new ArgumentNullException(nameof(specification));
}
if (cancellationToken == null)
{
throw new ArgumentNullException(nameof(cancellationToken));
}
if (specification.Criteria == null)
{
throw new ArgumentNullException(nameof(specification));
}
var query = ConstructQueryFromSpecification(specification);
return(await query.FirstOrDefaultAsync(specification.Criteria, cancellationToken));
}
