/// <summary> Add new member to collection</summary>
/// <param name="obj">new member
/// </param>
/// <returns> <code>true</code> if object is successfully added in the index,
/// <code>false</code> if collection was declared as unique and there is already member with such value
/// of the key in the collection.
/// </returns>
public virtual bool Add(IPersistent obj)
{
TtreePage newRoot;
if (root == null)
{
newRoot = new TtreePage(obj);
}
else
{
TtreePage.PageReference ref_Renamed = new TtreePage.PageReference(root);
if (root.Insert(comparator, obj, unique, ref_Renamed) == TtreePage.NOT_UNIQUE)
{
return false;
}
newRoot = ref_Renamed.pg;
}
root = newRoot;
nMembers += 1;
Modify();
return true;
}
/// <summary> Remove member from collection</summary>
/// <param name="obj">member to be removed
/// </param>
/// <exception cref="StorageError(StorageError.KEY_NOT_FOUND)">exception if there is no such key in the collection
/// </exception>
public virtual void Remove(IPersistent obj)
{
if (root == null)
{
throw new StorageError(StorageError.KEY_NOT_FOUND);
}
TtreePage.PageReference ref_Renamed = new TtreePage.PageReference(root);
if (root.Remove(comparator, obj, ref_Renamed) == TtreePage.NOT_FOUND)
{
throw new StorageError(StorageError.KEY_NOT_FOUND);
}
root = ref_Renamed.pg;
nMembers -= 1;
Modify();
}
