At the time of development, sometimes it is necessary to store the state of the object in the file system. Some objects may or may not be stored in the file system depending upon the structural intensity of the object graph. In this article, I will focus on two major aspects of the object persistence. Before going to this subject, I would like to tell you about the significance of the object persistence. Object persistence presupposes the state of the object in the file system. In this matter you can make argument regarding object persistence in the database, which hibernate does. But so far this article is concerned I will give glimpse on persistence in the file system for all convenience. The state of object signifies the attributes or properties of the object in the broader sense. The object graph represents the internal morphological structure of the object. So persisting object means, you are going to store all the internal changed structure of the object.