Item AddItem(IBxReferableElement val)
{
Item item = new Item(_items.Count, _nodeVS.CreateChildNode(BxSSL.nodeVItem + _items.Count.ToString()));
item.Value = val;
_items.Add(item);
return(item);
}
//public BxCompoundRefer(IBxCompound container, IBxElementCarrier carrier)
// : base(container, carrier)
//{
//}
#endregion
#region IBxElementReferSite 成员
public virtual void ReferTo(IBxReferableElement val)
{
if (!(val is T))
{
throw new Exception("object referred must be type of " + typeof(T).Name);
}
if (object.ReferenceEquals(null, _value))
{
_value.BreakRefer(this);
}
_value = val as T;
_value.AddRefer(this);
}
public virtual void ReferTo(IBxReferableElement val)
{
if (!(val is T))
{
throw new Exception("object referred must be type of " + typeof(T).Name);
}
ReferToEx(val as T);
//if (!object.ReferenceEquals(null, _value))
// _value.BreakRefer(this);
//_value = val as T;
//_value.AddRefer(this);
//if (_value is IBxElementInit)
// (_value as IBxElementInit).InitCarrier(_carrier);
}
public void Load(IBxStorageNode nodeSva)
{
_nodeSva = nodeSva;
_nodeVS = null;
_items = null;
_tSaver = null;
IBxStorageNode nodeTS = _nodeSva.GetChildNode(BxSSL.nodeTS);
if (nodeTS != null)
{
_tSaver = new BxSvaTypeSaver();
_tSaver.Load(nodeTS);
}
_nodeVS = _nodeSva.GetChildNode(BxSSL.nodeVS);
if (_nodeVS != null)
{
_items = new List <Item>();
IEnumerable <IBxStorageNode> childs = _nodeVS.ChildNodes;
int index = 0;
Item temp = null;
string id = null;
Type type = null;
IBxReferableElement tempVal = null;
foreach (IBxStorageNode one in childs)
{
temp = new Item(index, one);
index++;
_items.Add(temp);
if (one.HasElement(BxSSL.elementTypeID))
{
id = one.GetElementValue(BxSSL.elementTypeID);
type = _tSaver.Get(id);
tempVal = type.GetConstructor(null).Invoke(null) as IBxReferableElement;
temp.Value = tempVal;
}
}
}
}
public string SaveValue(IBxReferableElement val)
{
Item item = GetItem(val);
if (item != null)
{
return(item.Index.ToString());
}
item = AddItem(val);
IBxStorageNode node = item.Node;
if (val is IBxPersistStorageNode)
{
(val as IBxPersistStorageNode).SaveStorageNode(node);
}
if (val.Owner == null)
{
string typeID = TSaver.Add(val.GetType());
node.SetElement(BxSSL.elementTypeID, typeID);
}
return(item.Index.ToString());
}
public void LoadValue(IBxReferableElement val, string id)
{
Item item = GetItem(id);
if (item == null)
{
throw new Exception("find share value " + id.ToString() + " failed!");
}
if (item.Value != null)
{
throw new Exception("a shared value is loaded more than once!");
}
item.Value = val;
(val as IBxPersistStorageNode).LoadStorageNode(item.Node);
if (item.Refers != null)
{
foreach (IBxElementReferer one in item.Refers)
{
one.ReferTo(val);
}
item.CLearRefers();
}
}
public Item(int index, IBxStorageNode node)
{
_index = index;
_val = null;
_node = node;
}
Item GetItem(IBxReferableElement val)
{
return(_items.Find(x => x.Value == val));
}
