private static void AddExceptionsForAggregateQueries(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures,
Lazy <List <Exception> > exceptions)
{
if (queryInfo.HasAggregates)
{
if (queryInfo.Aggregates.Length == 1)
{
// Single aggregate must be a composite or just a VALUE <Aggregate>
if (queryInfo.HasSelectValue)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Aggregate))
{
exceptions.Value.Add(QueryContainsUnsupportedAggregates);
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.CompositeAggregate))
{
exceptions.Value.Add(QueryContainsUnsupportedCompositeAggregate);
}
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.MultipleAggregates))
{
exceptions.Value.Add(QueryContainsUnsupportedMultipleAggregates);
}
}
}
}
private static QueryFeatures GetNeededQueryFeaturesIfOrderByQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasOrderBy)
{
if (queryInfo.OrderByExpressions.Length == 1)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.OrderBy))
{
neededQueryFeatures |= QueryFeatures.OrderBy;
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.MultipleOrderBy))
{
neededQueryFeatures |= QueryFeatures.MultipleOrderBy;
}
}
}
return(neededQueryFeatures);
}
private static QueryFeatures GetNeededQueryFeaturesIfAggregateQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasAggregates)
{
bool isSingleAggregate = (queryInfo.Aggregates.Length == 1) ||
(queryInfo.GroupByAliasToAggregateType.Values.Where(aggregateOperator => aggregateOperator.HasValue).Count() == 1);
if (isSingleAggregate)
{
if (queryInfo.HasSelectValue)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Aggregate))
{
neededQueryFeatures |= QueryFeatures.Aggregate;
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.NonValueAggregate))
{
neededQueryFeatures |= QueryFeatures.NonValueAggregate;
}
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.NonValueAggregate))
{
neededQueryFeatures |= QueryFeatures.NonValueAggregate;
}
if (!supportedQueryFeatures.HasFlag(QueryFeatures.MultipleAggregates))
{
neededQueryFeatures |= QueryFeatures.MultipleAggregates;
}
}
}
return(neededQueryFeatures);
}
private static void AddExceptionsForAggregateQueries(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures,
Lazy <List <Exception> > exceptions)
{
if (queryInfo.HasAggregates)
{
bool isSingleAggregate = (queryInfo.Aggregates.Length == 1) ||
(queryInfo.GroupByAliasToAggregateType.Values.Where(aggregateOperator => aggregateOperator.HasValue).Count() == 1);
if (isSingleAggregate)
{
if (queryInfo.HasSelectValue)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Aggregate))
{
exceptions.Value.Add(QueryContainsUnsupportedAggregates);
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.NonValueAggregate))
{
exceptions.Value.Add(QueryContainsUnsupportedNonValueAggregate);
}
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.NonValueAggregate))
{
exceptions.Value.Add(QueryContainsUnsupportedNonValueAggregate);
}
if (!supportedQueryFeatures.HasFlag(QueryFeatures.MultipleAggregates))
{
exceptions.Value.Add(QueryContainsUnsupportedMultipleAggregates);
}
}
}
}
private static void AddExceptionsForTopQueries(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures,
Lazy <List <Exception> > exceptions)
{
if (queryInfo.HasTop)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Top))
{
exceptions.Value.Add(QueryContainsUnsupportedTop);
}
}
}
private static void AddExceptionsForOffsetLimitQueries(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures,
Lazy <List <Exception> > exceptions)
{
if (queryInfo.HasLimit || queryInfo.HasOffset)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.OffsetAndLimit))
{
exceptions.Value.Add(QueryContainsUnsupportedOffsetAndLimit);
}
}
}
private static void AddExceptionsForOrderByQueries(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures,
Lazy <List <Exception> > exceptions)
{
if (queryInfo.HasOrderBy)
{
if (queryInfo.OrderByExpressions.Length == 1)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.OrderBy))
{
exceptions.Value.Add(QueryContainsUnsupportedOrderBy);
}
}
else
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.MultipleOrderBy))
{
exceptions.Value.Add(QueryContainsUnsupportedMultipleOrderBy);
}
}
}
}
private static QueryFeatures GetNeedQueryFeaturesIfGroupByQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasGroupBy)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.GroupBy))
{
neededQueryFeatures |= QueryFeatures.GroupBy;
}
}
return(neededQueryFeatures);
}
private static QueryFeatures GetNeededQueryFeaturesIfOffsetLimitQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasLimit || queryInfo.HasOffset)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.OffsetAndLimit))
{
neededQueryFeatures |= QueryFeatures.OffsetAndLimit;
}
}
return(neededQueryFeatures);
}
private static QueryFeatures GetNeededQueryFeaturesIfTopQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasTop)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Top))
{
neededQueryFeatures |= QueryFeatures.Top;
}
}
return(neededQueryFeatures);
}
private static QueryFeatures GetNeededQueryFeaturesIfDistinctQuery(
QueryInfo queryInfo,
QueryFeatures supportedQueryFeatures)
{
QueryFeatures neededQueryFeatures = QueryFeatures.None;
if (queryInfo.HasDistinct)
{
if (!supportedQueryFeatures.HasFlag(QueryFeatures.Distinct))
{
neededQueryFeatures |= QueryFeatures.Distinct;
}
}
return(neededQueryFeatures);
}