public QueryResult Result <T>(string queryString)
{
var hasInline = HasInlineCount(queryString);
ICriteria query = Criteria <T>(queryString);
ICriteria countQuery = (ICriteria)query.Clone();
var list = query.Future <T>();
QueryResult result;
if (hasInline)
{
countQuery.ClearOrders();
var count = countQuery
.SetFirstResult(0)
.SetMaxResults(Int32.MaxValue)
.SetProjection(Projections.RowCount()).FutureValue <Int32>();
result = new QueryResult()
{
InlineCount = count.Value, Results = list
};
}
else
{
result = new QueryResult()
{
Results = list
};
}
return(result);
}
/// <summary> Create a query (ICriteria) </summary>
public ICriteria CreateCountQuery(ICriteria criteria)
{
ICriteria criteriaClone = CriteriaTransformer.Clone(criteria);
criteriaClone.ClearOrders();
return(criteriaClone.SetFirstResult(0).SetProjection(Projections.RowCount()));
}
/// <summary> Create a query (ICriteria) </summary>
public ICriteria CreateCountQuery(DetachedCriteria detachedCriteria)
{
ICriteria executableCriteria = detachedCriteria.GetExecutableCriteria(_session);
executableCriteria.ClearOrders();
return(executableCriteria.SetFirstResult(0).SetProjection(Projections.RowCount()));
}
protected virtual PagedList <T> FindPagedInternal(int pageIndex, int pageSize, Func <ICriteria, ICriteria> func)
{
ICriteria rowCountCriteria = func != null?func(CreateCriteria()) : CreateCriteria();
rowCountCriteria.ClearOrders();
IFutureValue <int> rowCount =
rowCountCriteria
.SetFirstResult(0)
.SetMaxResults(RowSelection.NoValue)
.SetProjection(Projections.RowCount())
.FutureValue <int>();
ICriteria pagingCriteria = func != null?func(CreateCriteria()) : CreateCriteria();
IList <T> qryResult =
pagingCriteria
.SetFirstResult((pageIndex - 1) * pageSize)
.SetMaxResults(pageSize)
.Future <T>()
.ToList <T>();
PagedList <T> result = new PagedList <T>(qryResult, pageIndex, pageSize, rowCount.Value);
return(result);
}
private ICriteria Clone(ICriteria criteria)
{
ICriteria criteriaClone = criteria.Clone() as ICriteria;
criteriaClone.ClearOrders();
return(criteriaClone);
}
public ICriteria CreateOrderCriteria(ICriteria criteria)
{
if (!this.IsClientSort())
{
return(criteria);
}
if (this.Order.ToLower() == Asc)
{
criteria.ClearOrders();
criteria.AddOrder(NHibernate.Criterion.Order.Asc(this.Sort));
}
else if (this.Order.ToLower() == Desc)
{
criteria.ClearOrders();
criteria.AddOrder(NHibernate.Criterion.Order.Desc(this.Sort));
}
return(criteria);
}
/// <summary>
/// Find by ICriteria created by client with Pagination and Sorting
/// </summary>
/// <returns></returns>
/// <remarks>
/// This pagination signature is designed to work with ASP.NET ObjectDataSource, for more advanced pagination, please consider NHiberante.Burrow.Util.Pagination.IPaginator, NHiberante.Burrow.Util
/// </remarks>
protected IList <ReturnT> Find(int startRow, int pageSize, string sortExpression, ICriteria c)
{
Order o = ParseOrder(sortExpression);
if (o != null)
{
c.ClearOrders();
c.AddOrder(o);
}
return(Find(pageSize, startRow, c));
}
protected override LinqExpression VisitMethodCall(MethodCallExpression call)
{
switch (call.Method.Name)
{
case "First":
results = HandleFirstCall(call);
break;
case "FirstOrDefault":
results = HandleFirstOrDefaultCall(call);
break;
case "Single":
results = HandleSingleCall(call);
break;
case "SingleOrDefault":
results = HandleSingleOrDefaultCall(call);
break;
case "Aggregate":
results = HandleAggregateCallback(call);
break;
case "Average":
case "Count":
case "LongCount":
case "Max":
case "Min":
case "Sum":
rootCriteria.ClearOrders();
results = HandleAggregateCall(call);
break;
case "Any":
results = HandleAnyCall(call);
break;
default:
throw new NotImplementedException("The method " + call.Method.Name + " is not implemented.");
}
return(call);
}
/// <summary>
/// Clear all orders from criteria.
/// </summary>
public void ClearOrders()
{
criteria.ClearOrders();
}
