MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Manuel d'utilisateur télécharger pdf (Page 63)

Server-Side Communication ActionScript 63

Description

Method; updates the value of a property in a shared object. A shared object property can be

modified by another user of the shared object between successive calls to

SharedObject.getProperty and SharedObject.setProperty. If you want to preserve

transactional integrity, call the

SharedObject.lock method before operating on the shared

object; be sure to call

SharedObject.unlock when the operations finish. If you don’t call

SharedObject.lock and the SharedObject.setProperty is called, the change is made to the

shared object, and all subscribers of the object are notified before

SharedObject.setProperty

returns. If a call to the

SharedObject.lock method precedes a call to

SharedObject.setProperty, all changes are batched and sent when the SharedObject.unlock

method is called.

If you call

SharedObject.setProperty on the server side, it invokes a change message in the

SharedObject.onSync method on the client side for any Flash Player client that is using the

shared object. The

name parameter on the server side is the same as an attribute of the data

property on the client side. For example, the following two lines of code are equivalent: the first

line is server-side ActionScript, and the second is client-side ActionScript:

sharedInfo.setProperty(nameVal, "foo");

clientSO.data[nameVal] = "foo";

Example

This example uses the SharedObject.setProperty method to create the property city with the

value San Francisco. It then enumerates all the property values in a for loop and prints out the

results in the Output window by using a

trace action.

myInfo = SharedObject.get("foo");

var addr = myInfo.getProperty("address");

myInfo.setProperty("city", "San Francisco");

var names = sharedInfo.getPropertyNames();

for (x in names){

var propVal = sharedInfo.getProperty(names[x]);

trace("Value of property " + names[x] + " = " + propVal);

}

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MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Manuel d'utilisateur Page 63