MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Spezifikationen PDF herunterladen (Seite 281)

For example, if you expect a shared object to grow to a maximum size of 500 bytes, even though

it may start out much smaller, pass 500 for

minimumDiskSpace. If Flash asks the user to allot disk

space for the shared object, it will ask for 500 bytes. After the user allots the requested amount of

space, Flash won’t have to ask for more space on future attempts to flush the object (as long as its

size doesn’t exceed 500 bytes).

After the user responds to the dialog box, this method is called again and returns either

true or

false; also, SharedObject.onStatus is invoked with a code property of

SharedObject.Flush.Success or SharedObject.Flush.Failed.

Example

The following function gets a shared object, SO, and fills writable properties with user-provided

settings. Finally, flush is called to save the settings and allot a minimum of 1000 bytes of

disk space.

this.SyncSettingsCore=function(soname, override, settings)

{

var SO=SharedObject.getLocal(soname, "http://www.mydomain.com/app/sys");

// settings list index

var i;

// For each specified value in settings:

// If override is true, set the persistent setting to the provided value.

// If override is false, fetch the persistent setting, unless there

// isn’t one, in which case, set it to the provided value.

for (i in settings) {

if (override || (SO.data[i] == null)) {

SO.data[i]= settings[i];

} else {

settings[i]= SO.data[i];

}

SO.flush(1000);

}

For a remote shared object, calling SharedObject.flush in the client-side ActionScript file

flushes the object only on the client, not the server. The following example shows how a server-

side script can flush a remote shared object on the server.

// This is a SERVER-SIDE script, not ActionScript

// Get the shared object when the application is loaded.

application.onAppStart = function()

{

application.mySO = SharedObject.get("SharedObjName", true);

}

// When a user disconnects, flush the shared object.

application.onDisconnect = function(client)

{

application.mySO.flush();

}

// You can also set a timer to periodically flush the shared object

// onto the hard disk on the server

application.onAppStart = function()

{

application.mySO = SharedObject.get("SharedObjName", true);

setInterval(function() { application.mySO.flush(); }, 60000);

}

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