![]() The return value is Object, so you will need to cast it to its appropriate data type. This method retrieves the next Object out of the stream and deserializes it. Public final Object readObject() throws IOException, ClassNotFoundException ![]() Similarly, the ObjectInputStream class contains the following method for deserializing an object − The above method serializes an Object and sends it to the output stream. ![]() Public final void writeObject(Object x) throws IOException The ObjectOutputStream class contains many write methods for writing various data types, but one method in particular stands out − Most impressive is that the entire process is JVM independent, meaning an object can be serialized on one platform and deserialized on an entirely different platform.Ĭlasses ObjectInputStream and ObjectOutputStream are high-level streams that contain the methods for serializing and deserializing an object. NET framework ensures that serialization occurs only once per object and handles object graphs and circular references automatically.Java provides a mechanism, called object serialization where an object can be represented as a sequence of bytes that includes the object's data as well as information about the object's type and the types of data stored in the object.Īfter a serialized object has been written into a file, it can be read from the file and deserialized that is, the type information and bytes that represent the object and its data can be used to recreate the object in memory. By tagging the OptionalField attribute to the newly added members of the class, the earlier versions of the object can be deserialized without any error. NET objects by including the attribute Serializable to the class. Serialization (XML) is also used mostly on sharing data across the network without restricting the application on usage of data. Examples of its usage include saving session state in ASP.NET, copying objects in clipboard in Windows Forms, etc. Remoting is a concept using binary serialization to send arguments in methods from one computer to another. NET framework provides to automatically serialize all the members of an assembly into storage. To achieve this without serialization, it becomes too tedious, error-prone and complicated as the data structure is complex. Serialization is used when large amounts of data have to be stored in flat files and retrieved at a later stage. The framework provides many options to customize the serialization process to meet application requirements. It does not preserve type fidelity but provides support for serialization in human-readable, cross-platform XML. XML serialization uses XML as an open standard to serialize only the public properties and fields. Binary serialization preserves the state of the object between different invocations of an application by preserving type fidelity. NET framework offers two methods of serialization, namely, binary serialization and XML serialization. ![]() The reverse process of converting stream of bits into an object is called deserialization. It involves the conversion of public and private members of an object including the name of class and assembly into a stream of bytes, which is then written to data stream. ![]() Serialization is executed by Common Language Runtime (CLR) to save an object‘s current state information to a temporary (like ASP.NET cache) or permanent storage (file, database, etc.) so as to be used later to update an object with this same information. ![]()
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