Flex and. NET Interop (12)

Flex vs. NET Interop (12): Fluorinefx.net in-time communication applications (Remote Shared Objects) (iii)

Remote shared objects (a remote shared Objects) can be used to track, store, share, and multitask data synchronization operations for long clients. As long as the data on the shared object has changed, the latest data will be synchronized to all application clients that are connected to the shared object. FLUORINEFX provides remote shared objects (remotely shared Objects) and FMs shared objects, and for friends who are familiar with FMS development, Learning FluorineFX remote shared objects is very simple.

Shared objects can be created on the server side or on the client. The method of creating shared objects on the client is the same as using FMS development, creating a Netconnection object, connecting to the server through the Connect () method of the object, and then passing through Sharedobject.getremote () method, you can create a remote shared object on the client. The following instance code:

private　function 　connectionServer():void
{
　　　　var　nc:NetConnection　=　new　NetConnection();
　nc.connect ("rtmp://localhost:1617/SOAPP","username","password")
　　　　nc.addEventListener (NetStatusEvent.NET_STATUS,onStatusHandler);
　nc.client　=　this;
　}

private　function　 onStatusHandler(event:NetStatusEvent):void
{
　　　　if(event.info.code　==　 "NetConnectin.Connect.Success")
　　　　{
　　　　　　　　createSharedObject();
　}
}

private　function　createSharedObject():void
{
　　　　var　so:SharedObject　=　SharedObject.getRemote ("OnLineUsers",nc.uri,false);
　so.addEventListener(SyncEvent.SYNC,onSyncHandler);
　so.connect (this.nc);
　so.client　=　this;
　}

private　function　onSyncHandler(event:SyncEvent):void
{
　　 //.....do　other
}

There is a big difference between creating remote shared objects and FMS on the server side of FluorineFX, and the FluorineFX Isharedobjectservice interface provides a method specifically for creating remote shared Objects Createsharedobject (), Applicationadapter implements this interface method. The definition is as follows:

public　bool　 CreateSharedObject(IScope　scope,　string　name,　bool　persistent)
{
　　　　　　ISharedObjectService　service　= 　(ISharedObjectService)ScopeUtils.GetScopeService(scope,　typeof(ISharedObjectService));
　return　 service.CreateSharedObject(scope,　name,　persistent);
　}

If you want to create a remote shared object on the server side, you can call the Createsharedobject () method in the Applicationadapter class directly. The following is a code block for creating a remote shared object on the FluorineFX server side:

ISharedObject　users_so　=　GetSharedObject(connection.Scope,　"OnLineUsers");
if　(users_so　== 　null)
{
　　　　　　　//创建共享对象
　　　　　　　　CreateSharedObject(connection.Scope,　 "OnLineUsers",　false);
　users_so　=　GetSharedObject(connection.Scope,　"OnLineUsers");
　}

To update the data client in a shared object or to use the SetProperty () method, the FluorineFX server updates the shared object in a way that is not the same as FMS, The setattribute () and RemoveAttribute () methods provided by the FluorineFx.Messaging.Api.IAttributeStore interface are used to update the data in the shared object.