public void AddItem(BracketedName alias, PropertyMap property, bool ascending)
{
_items.Add(new Item
{
Alias = alias,
Property = property,
Ascending = ascending,
});
}
public SelectPaging(BracketedName alias, Select innerSelect, IValueProvider skip)
{
innerSelect.Columns.AddRowNumber(innerSelect.OrderBy);
innerSelect.OrderBy = null;
_skip = skip;
_innerSelect = innerSelect;
_alias = alias;
}
public Select(EntityMap entityMap, BracketedName alias)
{
if (entityMap == null)
throw new ArgumentNullException("entityMap");
if (alias == null)
throw new ArgumentNullException("alias");
EntityMap = entityMap;
Alias = alias;
JoinGroup = new JoinGroup();
Columns = new Columns(alias, entityMap);
From = new From(this);
}
public Item(BracketedName fromAlias, BracketedName toAlias, ReferenceMap referenceMap)
{
FromAlias = fromAlias;
ToAlias = toAlias;
ReferenceMap = referenceMap;
}
public Item AddJoin(BracketedName fromAlias, BracketedName toAlias, ReferenceMap referenceMap)
{
return _joins[referenceMap.Property] = new Item(fromAlias, toAlias, referenceMap);
}
public bool VisitPath(QueryContext context, PropertyInfo[] path, out BracketedName alias, out PropertyMap map)
{
var entity = EntityMap;
alias = Alias;
map = null;
for (var i = 0; i < path.Length - 1; i++)
{
var prop = path[i];
var item = JoinGroup.FindJoin(prop);
if (item == null)
{
var reference = entity.FindReferenceMap(prop);
if (reference == null)
return false;
item = JoinGroup.AddJoin(alias, context.NextAlias(), reference);
}
alias = item.ToAlias;
entity = item.ReferenceMap.To;
}
var last = path[path.Length - 1];
map = entity.FindPropertyMap(last) ?? entity.FindReferenceMap(last);
return true;
}
public PropertyMap(PropertyInfo propertyInfo, BracketedName column)
{
Property = propertyInfo;
Column = column;
}
public ReferenceMap(PropertyInfo propertyInfo, BracketedName column, EntityMap from, EntityMap to)
: base(propertyInfo, column)
{
From = from;
To = to;
}
public Columns(BracketedName alias, EntityMap entityMap)
{
_alias = alias;
_entityMap = entityMap;
}
