public IObjectActivatorCreator GenarateObjectActivatorCreator(DbSqlQueryExpression sqlQuery)
        {
            int ordinal;

            ordinal = MappingObjectExpressionHelper.TryGetOrAddColumn(sqlQuery, this._exp).Value;

            MappingField mf = new MappingField(this._type, ordinal);

            mf.CheckNullOrdinal = MappingObjectExpressionHelper.TryGetOrAddColumn(sqlQuery, this.NullChecking);

            return(mf);
        }
        public IObjectActivatorCreator GenarateObjectActivatorCreator(DbSqlQueryExpression sqlQuery)
        {
            MappingEntity mappingEntity = new MappingEntity(this.ConstructorDescriptor);

            foreach (var kv in this.MappingConstructorParameters)
            {
                ParameterInfo pi  = kv.Key;
                DbExpression  exp = kv.Value;

                int ordinal;
                ordinal = MappingObjectExpressionHelper.TryGetOrAddColumn(sqlQuery, exp, pi.Name).Value;

                if (exp == this.NullChecking)
                {
                    mappingEntity.CheckNullOrdinal = ordinal;
                }

                mappingEntity.ConstructorParameters.Add(pi, ordinal);
            }

            foreach (var kv in this.ComplexConstructorParameters)
            {
                ParameterInfo            pi  = kv.Key;
                IMappingObjectExpression val = kv.Value;

                IObjectActivatorCreator complexMappingMember = val.GenarateObjectActivatorCreator(sqlQuery);
                mappingEntity.ConstructorEntityParameters.Add(pi, complexMappingMember);
            }

            foreach (var kv in this.MappingMembers)
            {
                MemberInfo   member = kv.Key;
                DbExpression exp    = kv.Value;

                int ordinal;
                ordinal = MappingObjectExpressionHelper.TryGetOrAddColumn(sqlQuery, exp, member.Name).Value;

                if (exp == this.NullChecking)
                {
                    mappingEntity.CheckNullOrdinal = ordinal;
                }

                mappingEntity.MappingMembers.Add(member, ordinal);
            }

            foreach (var kv in this.ComplexMembers)
            {
                MemberInfo member            = kv.Key;
                IMappingObjectExpression val = kv.Value;

                IObjectActivatorCreator complexMappingMember = val.GenarateObjectActivatorCreator(sqlQuery);
                mappingEntity.ComplexMembers.Add(kv.Key, complexMappingMember);
            }

            if (mappingEntity.CheckNullOrdinal == null)
            {
                mappingEntity.CheckNullOrdinal = MappingObjectExpressionHelper.TryGetOrAddColumn(sqlQuery, this.NullChecking);
            }

            return(mappingEntity);
        }