private Clause <TEntity> CreateInternal(bool allowReturnAll = false)
{
if (!Clauses.Any() && allowReturnAll != true)
{
throw new Exception("No clauses specified, to retrieve all you need to set that it is enabled");
}
Clause <TEntity> clause = null;
foreach (var clauseData in Clauses)
{
if (clause == null)
{
clause = clauseData.Clause;
}
else
{
switch (clauseData.Operator)
{
case Operator.And:
clause &= clauseData.Clause;
break;
case Operator.Or:
clause |= clauseData.Clause;
break;
default:
throw new Exception("Unknown operator used");
}
}
}
return(clause);
}
public TSpecification EndGroup()
{
if (!Clauses.Any())
{
return(Parent);
}
var specification = CreateInternal();
if (specification != null)
{
Parent.Clause(specification);
}
else
{
switch (Parent.CurrentOperator)
{
case Operator.And:
Parent.Clause(new TrueSpecification <TEntity>());
break;
case Operator.Or:
Parent.Clause(new FalseSpecification <TEntity>());
break;
}
}
return(Parent);
}
private void SetStatement(SqlStatement value)
{
if (!Clauses.Any())
{
Clauses.Add(value);
}
if (Clauses[0] is SqlStatement)
{
Clauses[0] = value;
}
else
{
Clauses.Insert(0, value);
}
}
