private void BuildOrderBy(OrderByClause orderByClause)
{
bool propertySelect = false;
if (_selectItemInfos.Count == 0)
{
if (OeExpressionHelper.IsTupleType(_visitor.Parameter.Type))
{
return;
}
_selectItemInfos.Add(new SelectItemInfo(_visitor.Parameter));
}
else
{
propertySelect = _selectItemInfos.Any(i => i.PropertySelect);
}
while (orderByClause != null)
{
var propertyNode = (SingleValuePropertyAccessNode)orderByClause.Expression;
orderByClause = orderByClause.ThenBy;
if (SelectItemInfoExists(propertyNode.Property))
{
continue;
}
if (!propertySelect && propertyNode.Source is ResourceRangeVariableReferenceNode)
{
continue;
}
_selectItemInfos.Add(new SelectItemInfo(_visitor.Visit(propertyNode)));
}
}
private OePropertyAccessor[] GetSkipTokenAccessors(IEdmModel edmModel, OrderByClause?orderByClause)
{
ParameterExpression parameter = Expression.Parameter(typeof(Object));
Type clrEntityType = edmModel.GetClrType(EntitySet);
var visitor = new OeQueryNodeVisitor(Expression.Parameter(clrEntityType));
var skipTokenAccessors = new List <OePropertyAccessor>();
while (orderByClause != null)
{
var propertyNode = (SingleValuePropertyAccessNode)orderByClause.Expression;
var propertyExpression = (MemberExpression)visitor.Visit(propertyNode);
propertyExpression = OeExpressionHelper.ReplaceParameter(propertyExpression, parameter);
skipTokenAccessors.Add(OePropertyAccessor.CreatePropertyAccessor(propertyNode.Property, propertyExpression, parameter, true));
orderByClause = orderByClause.ThenBy;
}
return(skipTokenAccessors.ToArray());
}
