public void Delete(string name)
{
client.VerifyAccess();
CollectionEntry entry = null;
if (this.TryGetValue(name, out entry))
{
DeleteCollection(entry, Source.Client);
}
else
{
// If we have no local record of a collection it may still exist. Send Delete payload
Payload eventData = new CollectionDeletedPayload(name, this.client.ClientId);
client.SendPublishEvent(eventData);
}
}
/// <summary>
/// Opens an object with the specified name
/// </summary>
/// <param name="name">The object to open</param>
/// <param name="mode">An ObjectMode value that specifies whether an object is created if one does not exist, and determines whether the contents of existing object is retained or overwritten.</param>
/// <returns>A shared object with the specified name</returns>
public T Open <T>(string name, ObjectMode mode, Action <ObjectConnectedEventArgs> callback) where T : INotifyPropertyChanged, new()
{
client.VerifyAccess();
if (mode == ObjectMode.Create || mode == ObjectMode.Truncate)
{
throw new ArgumentException("mode", "Create and Truncate are not supported ObjectModes for named objects");
}
if (!this.client.IsConnected)
{
throw new InvalidOperationException("Cannot open object before the Client is connected");
}
if (this.pendingOpenOperations.ContainsKey(name))
{
throw new InvalidOperationException("The specified named object is already in the process of being opened");
}
ObjectEntry entry = null;
if (this.ContainsKey(name))
{
if (mode != ObjectMode.Open && mode != ObjectMode.OpenOrCreate)
{
throw new ArgumentException("Invalid ObjectMode. Specified object has already been opened on this client. Try using ObjectMode.Open", "mode");
}
entry = this[name];
// Make sure type of object matches T
if (entry.Type != typeof(T))
{
throw new ArgumentException("Specified type does not match that of existing collection");
}
if (callback != null)
{
// If callback was provided, call the opened callback
callback(new ObjectConnectedEventArgs(entry.Object, entry.Name, false));
}
}
else
{
entry = new ObjectEntry(this.client, name, typeof(T));
// Add to internal dictionary tracking all the pending open operations
this.pendingOpenOperations[entry.Name] = new OpenOperation()
{
Entry = entry, Callback = callback
};
Payload eventData = new ObjectOpenedPayload(entry.ToPayload(), mode, this.client.ClientId);
this.client.SendPublishEvent(eventData);
entry.AddParent(new ParentEntry(this.client.Id, 0));
}
return((T)entry.Object);
}
