private void AddJoin(JoinBuilder <TEntity> joinBuilder)
{
if (joinBuilder == null || _joinBuilders.Any(q => q.Specification == joinBuilder.Specification))
{
return;
}
_joinBuilders.Add(joinBuilder);
}
private IEnumerable <JoinBuilder <TEntity> > ConcatUniqueJoins(params JoinBuilder <TEntity>[][] joins)
{
IEnumerable <JoinBuilder <TEntity> > result = new JoinBuilder <TEntity> [0];
foreach (var joinArray in joins)
{
if (joinArray == null || joinArray.Length < 1)
{
continue;
}
result = result.Concat(joinArray);
}
return(result
.GroupBy(join => join.Specification)
.Select(joinGroup => joinGroup.First())
.ToArray());
}
