How would you explain the object serialization in RMI?
It should be no surprise that RMI uses object serialization, which allows us to send graphs of objects (objects and all of the connected objects that they reference). When necessary, RMI can also use dynamic class loading and the security manager to transport Java classes safely.
What happens if an object is serialized?
Serialization is the process of converting an object into a stream of bytes to store the object or transmit it to memory, a database, or a file. Its main purpose is to save the state of an object in order to be able to recreate it when needed. The reverse process is called deserialization.
What is the use of remote object in RMI?
The RMI (Java Remote Method Invocation) system is a mechanism that enables an object on one Java virtual machine to invoke methods on an object in another Java virtual machine. Any object whose methods can be invoked in this way must implement the java.
How does the communication with remote objects occur in RMI?
RMI uses stub and skeleton object for communication with the remote object. The stub is an object, acts as a gateway to the client. It resides the client and acts as a proxy for the remote object. The skeleton is an object, acts as a gateway to the server.
What is the benefit of Serialisation?
The advantages of serialization are: It is easy to use and can be customized. The serialized stream can be encrypted, authenticated and compressed, supporting the needs of secure Java computing.
What Cannot be serialized in Java?
In Java, we serialize object (the instance of a Java class which has already implemented the Serializable interface). So it’s very clear that if a class has not implemented the Serializable interface, it cannot be serialized (then in that case NotSerializableException will be thrown).
How an object is serialized in Java?
To serialize an object means to convert its state to a byte stream so that the byte stream can be reverted back into a copy of the object. A Java object is serializable if its class or any of its superclasses implements either the java. Serializable interface or its subinterface, java. io.
What happens when you serialize and deserialize an object?
Serialization is a mechanism of converting the state of an object into a byte stream. Deserialization is the reverse process where the byte stream is used to recreate the actual Java object in memory. This mechanism is used to persist the object.