public void MultiCriteriaQueriesWithIntsShouldExecuteCorrectly()
{
var driver = Sfi.ConnectionProvider.Driver;
if (!driver.SupportsMultipleQueries)
{
Assert.Ignore("Driver {0} does not support multi-queries", driver.GetType().FullName);
}
// Test querying IntData
using (ISession session = this.OpenSession())
{
ICriteria criteriaWithPagination = session.CreateCriteria <DomainClass>();
criteriaWithPagination.Add(Expression.Le("IntData", 2));
ICriteria criteriaWithRowCount = CriteriaTransformer.Clone(criteriaWithPagination);
criteriaWithPagination.SetFirstResult(0).SetMaxResults(1);
criteriaWithRowCount.SetProjection(Projections.RowCountInt64());
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
multiCriteria.Add(criteriaWithPagination);
multiCriteria.Add(criteriaWithRowCount);
IList results = multiCriteria.List();
long numResults = (long)((IList)results[1])[0];
IList list = (IList)results[0];
Assert.AreEqual(2, criteriaWithRowCount.UniqueResult <long>());
Assert.AreEqual(1, list.Count);
}
}
public void CanNotRetrieveDetachedCriteriaResultWithUnknownKey()
{
CreateItems();
using (ISession session = OpenSession())
{
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
DetachedCriteria firstCriteria = DetachedCriteria.For(typeof(Item))
.Add(Expression.Lt("id", 50));
multiCriteria.Add("firstCriteria", firstCriteria);
try
{
IList firstResult = (IList)multiCriteria.GetResult("unknownKey");
Assert.Fail("This should've thrown an InvalidOperationException");
}
catch (InvalidOperationException)
{
}
catch (Exception)
{
Assert.Fail("This should've thrown an InvalidOperationException");
}
}
RemoveAllItems();
}
public void CanExecuteMultiplyQueriesInSingleRoundTrip()
{
using (ISession s = OpenSession())
{
Item item = new Item();
item.Id = 1;
s.Save(item);
s.Flush();
}
using (ISession s = OpenSession())
{
ICriteria getItems = s.CreateCriteria(typeof(Item));
ICriteria countItems = s.CreateCriteria(typeof(Item))
.SetProjection(Projections.RowCount());
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(getItems)
.Add(countItems);
IList results = multiCriteria.List();
IList items = (IList)results[0];
Item fromDb = (Item)items[0];
Assert.AreEqual(1, fromDb.Id);
IList counts = (IList)results[1];
int count = (int)counts[0];
Assert.AreEqual(1, count);
}
using (ISession s = OpenSession())
{
s.Delete("from Item");
s.Flush();
}
}
public void CanNotAddDetachedCriteriaWithKeyThatAlreadyExists()
{
using (ISession session = OpenSession())
{
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
DetachedCriteria firstCriteria = DetachedCriteria.For(typeof(Item))
.Add(Expression.Lt("id", 50));
DetachedCriteria secondCriteria = DetachedCriteria.For(typeof(Item));
multiCriteria.Add("firstCriteria", firstCriteria);
try
{
multiCriteria.Add("firstCriteria", secondCriteria);
Assert.Fail("This should've thrown an InvalidOperationException");
}
catch (InvalidOperationException)
{
}
catch (Exception)
{
Assert.Fail("This should've thrown an InvalidOperationException");
}
}
}
public void TwoMultiQueriesWithDifferentPagingGetDifferentResultsWhenUsingCachedQueries()
{
CreateItems();
using (ISession s = OpenSession())
{
ICriteria criteria = s.CreateCriteria(typeof(Item))
.Add(Expression.Gt("id", 50));
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(CriteriaTransformer.Clone(criteria).SetFirstResult(10))
.Add(CriteriaTransformer.Clone(criteria).SetProjection(Projections.RowCount()));
multiCriteria.SetCacheable(true);
IList results = multiCriteria.List();
IList items = (IList)results[0];
Assert.AreEqual(89, items.Count);
int count = (int)((IList)results[1])[0];
Assert.AreEqual(99L, count);
}
using (ISession s = OpenSession())
{
ICriteria criteria = s.CreateCriteria(typeof(Item))
.Add(Expression.Gt("id", 50));
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(CriteriaTransformer.Clone(criteria).SetFirstResult(20))
.Add(CriteriaTransformer.Clone(criteria).SetProjection(Projections.RowCount()));
multiCriteria.SetCacheable(true);
IList results = multiCriteria.List();
IList items = (IList)results[0];
Assert.AreEqual(79, items.Count, "Should have gotten different result here, because the paging is different");
int count = (int)((IList)results[1])[0];
Assert.AreEqual(99L, count);
}
RemoveAllItems();
}
public IPagedList <Album> GetAlbums(ILoadOptions options)
{
IPagedList <Album> result = new PagedList <Album>();
if (options == null)
{
return(result);
}
if (options.MaxResults <= 0)
{
return(result);
}
ISession session = SessionFactory.GetSession();
try
{
DetachedCriteria countCriteria = GetAlbumsImpl(options);
DetachedCriteria listCriteria = GetAlbumsImpl(options);
countCriteria.SetProjection(Projections.RowCount());
countCriteria.ClearOrders();
listCriteria.
SetFirstResult(options.FirstResult).
SetMaxResults(options.MaxResults);
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
multiCriteria.Add(countCriteria);
multiCriteria.Add(listCriteria);
IList queryResult = multiCriteria.List();
result.TotalItems = (int)((IList)queryResult[0])[0];
IList recordsList = (IList)queryResult[1];
EntityConverter entityConverter = new EntityConverter();
foreach (var e in recordsList)
{
AlbumEntity dataEntity = e as AlbumEntity;
Album businessEntity = entityConverter.FromDataEntity(dataEntity, AlbumConvertOptions.Small);
result.Add(businessEntity);
}
}
catch (Exception ex)
{
Logger.Write(ex);
}
finally
{
session.Close();
}
return(result);
}
/// <summary>
/// To use multi criteria to eagerly load multiple child collection, if the first detached criteria has child collection to query,
/// then must use .SetResultTransformer(new DistinctRootEntityResultTransformer() for the first detached criteria
/// </summary>
/// <typeparam name="TRoot">The type of the root.</typeparam>
/// <param name="multiCriteria">The multi criteria.</param>
/// <param name="rootCriterion">The root criterion.</param>
/// <param name="associationPropertyExpression">The association property expression.</param>
/// <param name="orders">The orders.</param>
/// <param name="returnDistinctRoot">If set to <c>true</c> [return distinct root].</param>
/// <returns>A <see cref="IMultiCriteria"/></returns>
public static IMultiCriteria AddDetachedCriteriaForChild <TRoot> (
this IMultiCriteria multiCriteria,
ICriterion rootCriterion,
Expression <Func <TRoot, object> > associationPropertyExpression,
IEnumerable <Order> orders = null,
bool returnDistinctRoot = false)
{
var detachedCriteria = DetachedCriteriaUtil.CreateDetachedCriteriaForChild(
rootCriterion,
associationPropertyExpression);
return(multiCriteria.AddDetachedCriteria(detachedCriteria, orders, returnDistinctRoot));
}
/// <summary>
/// Set a timeout for the underlying ADO.NET query.
/// </summary>
/// <param name="timeout">The timeout in seconds.</param>
/// <param name="multiCriteria">The <see cref="IMultiCriteria" /> on which to set the timeout.</param>
/// <returns><paramref name="multiCriteria" /> (for method chaining).</returns>
public static IMultiCriteria SetTimeout(this IMultiCriteria multiCriteria, int timeout)
{
if (multiCriteria == null)
{
throw new ArgumentNullException(nameof(multiCriteria));
}
if (multiCriteria is MultiCriteriaImpl impl)
{
return(impl.SetTimeout(timeout));
}
throw new NotSupportedException(multiCriteria.GetType() + " does not support SetTimeout");
}
/// <summary>
/// To use multi criteria to eagerly load multiple child collection, if the first detached criteria has child collection to query,
/// then must use .SetResultTransformer(new DistinctRootEntityResultTransformer() for the first detached criteria
/// </summary>
/// <param name="multiCriteria">The multi criteria.</param>
/// <param name="detachedCriteria">The detached criteria.</param>
/// <param name="orders">The orders.</param>
/// <param name="returnDistinctRoot">If set to <c>true</c> [return distinct root].</param>
/// <returns>A <see cref="IMultiCriteria"/></returns>
public static IMultiCriteria AddDetachedCriteria(
this IMultiCriteria multiCriteria, DetachedCriteria detachedCriteria, IEnumerable <Order> orders = null, bool returnDistinctRoot = false)
{
if (orders != null && orders.Count() > 0)
{
detachedCriteria.AddOrders(orders);
}
if (returnDistinctRoot)
{
detachedCriteria = detachedCriteria.SetResultTransformer(new DistinctRootEntityResultTransformer());
}
multiCriteria.Add(detachedCriteria);
return(multiCriteria);
}
public void CanGetResultInAGenericList()
{
using (ISession s = OpenSession())
{
ICriteria getItems = s.CreateCriteria(typeof(Item));
ICriteria countItems = s.CreateCriteria(typeof(Item))
.SetProjection(Projections.RowCount());
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(getItems) // we expect a non-generic result from this (ArrayList)
.Add <int>(countItems); // we expect a generic result from this (List<int>)
IList results = multiCriteria.List();
Assert.That(results[0], Is.InstanceOf <ArrayList>());
Assert.That(results[1], Is.InstanceOf <List <int> >());
}
}
private void DoMutiQueryAndAssert()
{
using (ISession s = OpenSession())
{
ICriteria criteria = s.CreateCriteria(typeof(Item))
.Add(Expression.Gt("id", 50));
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(CriteriaTransformer.Clone(criteria).SetFirstResult(10))
.Add(CriteriaTransformer.Clone(criteria).SetProjection(Projections.RowCount()));
multiCriteria.SetCacheable(true);
IList results = multiCriteria.List();
IList items = (IList)results[0];
Assert.AreEqual(89, items.Count);
int count = (int)((IList)results[1])[0];
Assert.AreEqual(99L, count);
}
}
public IList <TD> GetPageEntites(IList <ICriterion> expressions, IList <Order> orders, int pageSize, int page,
out long count)
{
using (var session = GetSession())
{
using (var trans = session.BeginTransaction())
{
IMultiCriteria mulicrit = session.CreateMultiCriteria();
ICriteria queryCrit = session.CreateCriteria(typeof(TD));
ICriteria countCrit = session.CreateCriteria(typeof(TD));
foreach (var exp in expressions)
{
queryCrit.Add(exp);
countCrit.Add(exp);
}
foreach (var order in orders)
{
queryCrit.AddOrder(order);
}
IList results = mulicrit
.Add(queryCrit.SetFirstResult(page * pageSize).SetMaxResults(pageSize))
.Add(countCrit.SetProjection(Projections.RowCountInt64()))
.List();
trans.Commit();
IList <TD> _list = new List <TD>();
foreach (var o in (IList)results[0])
{
_list.Add((TD)o);
}
count = (long)((IList)results[1])[0];
return(_list);
}
}
}
public virtual IList Execute(ISession theSession)
{
// a sub class may need this at a later date.
session = theSession;
if (criteriaList.Count == 0)
{
return(new ArrayList());
}
IMultiCriteria multiCriteria = theSession.CreateMultiCriteria();
foreach (DetachedCriteria detachedCriteria in criteriaList)
{
multiCriteria.Add(CreateCriteria(theSession, detachedCriteria));
}
IList list = multiCriteria.List();
int results = list.Count;
for (int i = 0; i < results; i++)
{
if (collectionDelegates[i] != null)
{
collectionDelegates[i]((IList)list[i]);
}
if (uniqueResultDelegate[i] != null)
{
object single = Collection.Single((ICollection)list[i]);
uniqueResultDelegate[i](single);
}
if (collectionAndCountDelegate[i] != null)
{
IList queryList = (IList)list[i];
int count = Convert.ToInt32(
Collection.Single((ICollection)list[i + 1])
);
collectionAndCountDelegate[i](queryList, count);
i += 1;//not a best practice, I will admit
}
}
return(list);
}
public void ExecutingCriteriaThroughMultiCriteriaTransformsResults()
{
CreateItems();
using (ISession session = OpenSession())
{
ResultTransformerStub transformer = new ResultTransformerStub();
ICriteria criteria = session.CreateCriteria(typeof(Item))
.SetResultTransformer(transformer);
IMultiCriteria multiCriteria = session.CreateMultiCriteria()
.Add(criteria);
multiCriteria.List();
Assert.IsTrue(transformer.WasTransformTupleCalled, "Transform Tuple was not called");
Assert.IsTrue(transformer.WasTransformListCalled, "Transform List was not called");
}
RemoveAllItems();
}
public void Test()
{
IDriver driver = sessions.ConnectionProvider.Driver;
if (!driver.SupportsMultipleQueries)
{
Assert.Ignore("Driver {0} does not support multi-queries", driver.GetType().FullName);
}
using (ISession session = sessions.OpenSession())
{
using (ITransaction transaction = session.BeginTransaction())
{
EntityA a1 = CreateEntityA(session);
EntityA a2 = CreateEntityA(session);
EntityC c = CreateEntityC(session);
EntityB b = CreateEntityB(session, a1, c);
// make sure the created entities are no longer in the session
session.Clear();
IMultiCriteria multi = session.CreateMultiCriteria();
// the first query is a simple select by id on EntityA
multi.Add(session.CreateCriteria(typeof(EntityA)).Add(Restrictions.Eq("Id", a1.Id)));
// the second query is also a simple select by id on EntityB
multi.Add(session.CreateCriteria(typeof(EntityA)).Add(Restrictions.Eq("Id", a2.Id)));
// the final query selects the first element (using SetFirstResult and SetMaxResults) for each EntityB where B.A.Id = a1.Id and B.C.Id = c.Id
// the problem is that the paged query uses parameters @p0 and @p1 instead of @p2 and @p3
multi.Add(
session.CreateCriteria(typeof(EntityB)).Add(Restrictions.Eq("A.Id", a1.Id)).Add(Restrictions.Eq("C.Id", c.Id)).
SetFirstResult(0).SetMaxResults(1));
IList results = multi.List();
Assert.AreEqual(1, ((IList)results[0]).Count);
Assert.AreEqual(1, ((IList)results[1]).Count);
Assert.AreEqual(1, ((IList)results[2]).Count);
}
}
}
/// <summary>
/// Finds all by multi criteria.
/// </summary>
/// <param name="detachedCriteriaDic">The detached criteria dic.</param>
/// <returns></returns>
public Dictionary <string, IList> FindAllByMultiCriteria(IDictionary <string, DetachedCriteria> detachedCriteriaDic)
{
Dictionary <string, IList> resultDict = new Dictionary <string, IList>();
if (detachedCriteriaDic != null && detachedCriteriaDic.Keys != null && detachedCriteriaDic.Keys.Count > 0)
{
IMultiCriteria multicriteria = Session.CreateMultiCriteria();
foreach (string key in detachedCriteriaDic.Keys)
{
multicriteria.Add(detachedCriteriaDic[key]);
}
IList list = multicriteria.List();
int count = 0;
foreach (string key in detachedCriteriaDic.Keys)
{
resultDict.Add(key, (IList)list[count]);
count++;
}
}
return(resultDict);
}
public void MultiCriteriaQueriesWithIntsShouldExecuteCorrectly()
{
// Test querying IntData
using (ISession session = this.OpenSession())
{
ICriteria criteriaWithPagination = session.CreateCriteria <DomainClass>();
criteriaWithPagination.Add(Expression.Le("IntData", 2));
ICriteria criteriaWithRowCount = CriteriaTransformer.Clone(criteriaWithPagination);
criteriaWithPagination.SetFirstResult(0).SetMaxResults(1);
criteriaWithRowCount.SetProjection(Projections.RowCountInt64());
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
multiCriteria.Add(criteriaWithPagination);
multiCriteria.Add(criteriaWithRowCount);
IList results = multiCriteria.List();
long numResults = (long)((IList)results[1])[0];
IList list = (IList)results[0];
Assert.AreEqual(2, criteriaWithRowCount.UniqueResult <long>());
Assert.AreEqual(1, list.Count);
}
}
public void CanGetMultiQueryFromSecondLevelCache()
{
CreateItems();
//set the query in the cache
DoMutiQueryAndAssert();
Hashtable cacheHashtable = GetHashTableUsedAsQueryCache();
IList cachedListEntry = (IList) new ArrayList(cacheHashtable.Values)[0];
IList cachedQuery = (IList)cachedListEntry[1];
IList firstQueryResults = (IList)cachedQuery[0];
firstQueryResults.Clear();
firstQueryResults.Add(3);
firstQueryResults.Add(4);
IList secondQueryResults = (IList)cachedQuery[1];
secondQueryResults[0] = 2;
using (ISession s = sessions.OpenSession())
{
ICriteria criteria = s.CreateCriteria(typeof(Item))
.Add(Expression.Gt("id", 50));
IMultiCriteria multiCriteria = s.CreateMultiCriteria()
.Add(CriteriaTransformer.Clone(criteria).SetFirstResult(10))
.Add(CriteriaTransformer.Clone(criteria).SetProjection(Projections.RowCount()));
multiCriteria.SetCacheable(true);
IList results = multiCriteria.List();
IList items = (IList)results[0];
Assert.AreEqual(2, items.Count);
int count = (int)((IList)results[1])[0];
Assert.AreEqual(2L, count);
}
RemoveAllItems();
}
public void CanAddDetachedCriteriaWithKeyAndRetrieveResultsWithKey()
{
CreateItems();
using (ISession session = OpenSession())
{
IMultiCriteria multiCriteria = session.CreateMultiCriteria();
DetachedCriteria firstCriteria = DetachedCriteria.For(typeof(Item))
.Add(Expression.Lt("id", 50));
DetachedCriteria secondCriteria = DetachedCriteria.For(typeof(Item));
multiCriteria.Add("firstCriteria", firstCriteria);
multiCriteria.Add("secondCriteria", secondCriteria);
IList secondResult = (IList)multiCriteria.GetResult("secondCriteria");
IList firstResult = (IList)multiCriteria.GetResult("firstCriteria");
Assert.Greater(secondResult.Count, firstResult.Count);
}
RemoveAllItems();
}
