public bool TrySelectIds(Expression <Func <Selector <T>, Selector <T> > > expression, out List <int> result, out long total)
{
var t = ServiceProvider.GetService <T>();
if (!FactoryIndexerHelper.Support(t) || !Indexer.CheckExist(t))
{
result = new List <int>();
total = 0;
return(false);
}
try
{
result = Indexer.Select(expression, true, out total).Select(r => r.Id).ToList();
}
catch (Exception e)
{
Logger.Error("Select", e);
total = 0;
result = new List <int>();
return(false);
}
return(true);
}
public static bool TrySelect(Expression <Func <Selector <T>, Selector <T> > > expression, out IReadOnlyCollection <T> result)
{
if (!Support || !Indexer.CheckExist(new T()))
{
result = new List <T>();
return(false);
}
try
{
result = Indexer.Select(expression);
}
catch (Exception e)
{
Logger.Error("Select", e);
result = new List <T>();
return(false);
}
return(true);
}
public static bool TrySelectIds(Expression <Func <Selector <T>, Selector <T> > > expression, out List <int> result)
{
if (!Support || !Indexer.CheckExist(new T()))
{
result = new List <int>();
return(false);
}
try
{
result = Indexer.Select(expression, true).Select(r => r.Id).ToList();
}
catch (Exception e)
{
Logger.Error("Select", e);
result = new List <int>();
return(false);
}
return(true);
}
public bool TrySelect(Expression <Func <Selector <T>, Selector <T> > > expression, out IReadOnlyCollection <T> result)
{
var t = ServiceProvider.GetService <T>();
if (!FactoryIndexerHelper.Support(t) || !Indexer.CheckExist(t))
{
result = new List <T>();
return(false);
}
try
{
result = Indexer.Select(expression);
}
catch (Exception e)
{
Logger.Error("Select", e);
result = new List <T>();
return(false);
}
return(true);
}