public void TestApplyWithFewerElementsThanMaxResults()
{
MaxResultsExitOperation exitOp = new MaxResultsExitOperation(8);
List<Object> list = new List<object> {1, 2, null, 3, 4, 5};
IList objects = exitOp.Apply(list);
Assert.AreEqual(5, objects.Count);
AssertNoNullElements(objects);
Assert.AreEqual(new List<object> {1, 2, 3, 4, 5}, objects);
}
public IList Apply(IList result)
{
if (firstResult.HasValue)
{
result = new FirstResultExitOperation(firstResult.Value).Apply(result);
}
if (maxResults.HasValue)
{
result = new MaxResultsExitOperation(maxResults.Value).Apply(result);
}
return result;
}
public IList Apply(IList result)
{
/**
* Herein lies the glory
*
* hibernate has done as much as it can, we're going to have to deal with
* the rest in memory.
*
* The heirarchy of operations is this so far:
* Distinct
* Order
* FirstResult
* MaxResult
* RowCount
* Average
* Min/Max/Sum
*/
// ordering of the following operations *really* matters!
if (distinct != null)
{
result = new DistinctExitOperation(distinct).Apply(result);
}
foreach (Order order in orders)
{
result = new OrderExitOperation(order).Apply(result);
}
if (firstResult != null)
{
result = new FirstResultExitOperation((int) firstResult).Apply(result);
}
if (maxResults != null)
{
result = new MaxResultsExitOperation((int) maxResults).Apply(result);
}
ProjectionExitOperationFactory factory = ProjectionExitOperationFactory.GetFactory();
if (rowCountProjection != null)
{
result = factory.GetProjectionExitOperation(rowCountProjection, sessionFactoryImplementor).Apply(result);
}
if (avgProjection != null)
{
result = new AvgResultsExitOperation().Apply(result);
}
// min, max, sum
if (aggregateProjection != null)
{
result = factory.GetProjectionExitOperation(aggregateProjection, sessionFactoryImplementor).Apply(result);
}
return result;
}