flash.net.ObjectEncoding (ActionScript 3.0)

Package	flash.net
Class	public final class ObjectEncoding
Inheritance	ObjectEncoding Object

Language Version:

ActionScript 3.0

Runtime Versions:

1.0, 9

The ObjectEncoding class allows classes that serialize objects (such as NetStream, NetConnection, SharedObject, and ByteArray) to work with prior versions of ActionScript.

Object encoding controls how objects are represented in Action Message Format (AMF). Flash Player uses AMF to enable efficient communication between an application and a remote server. AMF encodes remote procedure calls into a compact binary representation that can be transferred over HTTP/HTTPS or the RTMP/RTMPS protocol used by Flash Media Server. ActionScript objects and data values are serialized into this binary format, which is generally more compact than other representations, such as XML.

Flash Player 9 can serialize in two different formats, AMF3 and AMF0. AMF3, the default serialization used for ActionScript 3.0, provides various advantages over AMF0, which is used for ActionScript 1.0 and 2.0. AMF3 sends data over the network more efficiently than AMF0. AMF3 supports sending int and uint objects as integers and supports data types that are available only in ActionScript 3.0, such as ByteArray, XML, and IExternalizable. It is available only in ActionScript 3.0 and with servers that use AMF3 encoding, such as Flex 2.

The ByteArray, NetConnection, NetStream, SharedObject, Socket, and URLStream classes contain an objectEncoding property that is assigned a constant from the ObjectEncoding class. The behavior of the objectEncoding property differs depending on the object; each class's objectEncoding property description explains the behavior more thoroughly.

	Property	Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		dynamicPropertyWriter : IDynamicPropertyWriter [static] Allows greater control over the serialization of dynamic properties of dynamic objects.	ObjectEncoding
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

	Method	Defined By
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

	Constant	Defined By
		AMF0 : uint = 0 [static] Specifies that objects are serialized using the Action Message Format for ActionScript 1.0 and 2.0.	ObjectEncoding
		AMF3 : uint = 3 [static] Specifies that objects are serialized using the Action Message Format for ActionScript 3.0.	ObjectEncoding
		DEFAULT : uint = 3 [static] Specifies the default (latest) format for the current player.	ObjectEncoding

Property Detail

dynamicPropertyWriter

property

dynamicPropertyWriter:IDynamicPropertyWriter [read-write]

Language Version:

ActionScript 3.0

Runtime Versions:

1.0, 9

Allows greater control over the serialization of dynamic properties of dynamic objects. When this property is set to null , the default value, dynamic properties are serialized using native code, which writes all dynamic properties excluding those whose value is a function.

This value is called only for properties of a dynamic object (objects declared within a dynamic class) or for objects declared using the new operator.

You can use this property to exclude properties of dynamic objects from serialization; to write values to properties of dynamic objects; or to create new properties for dynamic objects. To do so, set this property to an object that implements the IDynamicPropertyWriter interface. For more information, see the IDynamicPropertyWriter interface.

Implementation
public static function get dynamicPropertyWriter():IDynamicPropertyWriter
public function set dynamicPropertyWriter(value:IDynamicPropertyWriter):void

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