Object Serialisation

• ObjectOutputStream in java.io package
• ObjectInputStream in java.io package
• Serialise: complete state of object written to an output stream
• Serialise: Pass object to writeObject() method of ObjectOutputStream
• De-serialise: Recover the complete object by reading its serialised state from an input stream
• De-serialise: Call readObject() method of ObjectInputStream
• Remote Method Invocation uses Object Serialisation for transferring objects between different Virtual Machines
• Serialisable interface does not define any methods; just a marker to indicate whether serialisation on an object is allowed or not.
• Fields of a class declared transient are not serialised
• Custom serialisation on objects requires implementation of special readObject() and writeObject() methods.