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narkisr on 05/29/08

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Last Edited at 05/29/08 12:28pm

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Action script to string serialization and de-serialization

/ Published in: ActionScript 3

This snippet shows how to serialize action script object to strings, the serialization method is AMF based, note also that each object must meet three basic rules in order to be serialized properly:
Â¨1. The constructor must take no arguments
2. Fields must be public or they wonâ€™t be saved
3. You must register it with a class alias by calling flash.net.registerClassAlias(aliasString, class).Â¨
(this is based upon http://www.partlyhuman.com/blog/roger/technique-storing-arbitrary-objects-in-html-links).

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package
{   
    import flash.utils.ByteArray;
    import mx.utils.Base64Encoder;
    import mx.utils.Base64Decoder;
 
    public class SerializationUtils {
        public static function serializeToString(value:Object):String{
            if(value==null){
                throw new Error("null isn't a legal serialization candidate");
            }
            var bytes:ByteArray = new ByteArray();
            bytes.writeObject(value);
            bytes.position = 0;
            var be:Base64Encoder = new Base64Encoder();
            be.encode(bytes.readUTFBytes(bytes.length));
            return be.drain();
        }
 
        public static function readObjectFromStringBytes(value:String):Object{
            var dec:Base64Decoder=new Base64Decoder();
            dec.decode(value);
            var result:ByteArray=dec.drain();
            result.position=0;
            return result.readObject();
        }      
    }
}