public ValueTask <IQueryable> Visit(ExecuteOffsetStage executeOffsetStage)
{
Debug.Assert(queryable != null);
var offsetExecutor = _offsetExecutorFactory.GetOffsetExecutor(executeOffsetStage);
return(offsetExecutor.Execute(queryable, executeOffsetStage));
}
public IOffsetExecutor GetOffsetExecutor(ExecuteOffsetStage executeOffsetStage)
{
if (!executors.TryGetValue(executeOffsetStage.Type, out var executor))
{
var t = typeof(DefaultOffsetExecutor <>).MakeGenericType(executeOffsetStage.Type);
executor = (IOffsetExecutor)Activator.CreateInstance(t);
executors.Add(executeOffsetStage.Type, executor);
}
return(executor);
}
public async ValueTask <IQueryable> Execute(IQueryable queryable, ExecuteOffsetStage executeOffsetStage)
{
return(await ExecuteOffset((IQueryable <Entity>) queryable, executeOffsetStage));
}
public abstract ValueTask <IQueryable <Entity> > ExecuteOffset(IQueryable <Entity> queryable, ExecuteOffsetStage executeOffsetStage);
public override ValueTask <IQueryable <Entity> > ExecuteOffset(IQueryable <Entity> queryable, ExecuteOffsetStage executeOffsetStage)
{
if (executeOffsetStage.Skip != null)
{
queryable = queryable.Skip(executeOffsetStage.Skip.Value);
}
if (executeOffsetStage.Take != null)
{
queryable = queryable.Take(executeOffsetStage.Take.Value);
}
return(new ValueTask <IQueryable <Entity> >(queryable));
}
