public virtual long GetNewValue(Net.Vpc.Upa.Field field) /* throws Net.Vpc.Upa.Exceptions.UPAException */
{
Net.Vpc.Upa.Entity entity = field.GetEntity();
Net.Vpc.Upa.Expressions.Select s = new Net.Vpc.Upa.Expressions.Select().From(entity.GetName());
s.Field(new Net.Vpc.Upa.Expressions.Plus(new Net.Vpc.Upa.Expressions.Coalesce(new Net.Vpc.Upa.Expressions.Max(new Net.Vpc.Upa.Expressions.Var(field.GetName())), new Net.Vpc.Upa.Expressions.Literal(0)), new Net.Vpc.Upa.Expressions.Literal(1)), "next");
Net.Vpc.Upa.Record next = field.GetPersistenceUnit().CreateQuery(s).GetRecord();
if (next != null)
{
return(next.GetLong("next"));
}
else
{
return(0);
}
}