Only advantage I can think of is that now same Repository implementation can be used regardless to which medium data is persisted The meaning given in this article as opposite of 'dynamic' is what is usually named static or constant. Notebook hibernation, for example, uses a stored snapshot of the entire machine's RAM.It is an example of orthogonal persistence because it does not require any specific actions by the programs running on the machine. Persistent Data denotes information that is infrequently accessed and not likely to be modified. If the cluster must increase its compute capacity, a new node can be added and the data can be “remastered”, a process in which the data node ownership is modified without moving any data (since all nodes can see all of the data). This is useful when you just need to store some simple data, like the user's name, whether they are logged in, what color to use for the background of the screen, etc. ... (ORM) of Java objects to persistent data (stored in a database). Persistent data for endings clearing when the game is closed #1 Post by Nova Alamak » Sun Jul 17, 2016 10:58 pm My testers have had this problem and I was able to replicate it this morning. The "easier" features we mentioned above are as follows: The Web Storage API provides a very simple syntax for storing and retrieving smaller, data items consisting of a name and a corresponding value. The opposite of this is transactional data. Temporary data, opposite of persistent data. As such it is opposite of transient or volatile. This multiplicity is the opposite of a one-to-many relationship. What is "serverless" computing? Once written to a disk file the data becomes persistent and it will still be there tomorrow when we run the next program. Conversely, when all persistent storage is network attached, systems are easier to scale. Usually, Repositories should know about the implementation details of which database we decided to use. The opposite of this is dynamic data (also known as transactional data) where information is asynchronously changed as further updates to the information become available. This way transient value becomes persistent . The opposite of a persistent data structure is an ephemeral data structure: changes are destructive, so that only one version exists at any time. A snapshot is a copy of the entire state of a program that is written to storage. a) But what are advantages/disadvantages of also making Repositories Persistence Ignorant ( ie unaware what persistence medium is used for storing data ). Persistent storage is any data storage device that retains data after power to that device is shut off. Both persistent and ephemeral data structures can be built in both functional and imperative languages. Persistent data denotes information that is infrequently accessed and not likely to be modi ed. It is also sometimes referred to as non-volatile storage . A Java object that maps to a database table is called an entity class. It is a regular Java object (also known as a POJO, or plain, old Java object) with properties that map to columns in the database table. (computing) About some data or data structures: existing after the execution of the program. While persistence can be achieved by simple copying, this is inefficient in time and space, because most operations make only small changes to a data structure. Snapshots are the simplest persistence technique. Persistent data structure is a data structure that always preserves the previous version of itself when it is modi ed Remaining in existence past the lifetime of the program that creates it. 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