In computer science, the persistence concept refers to the data feature to survive the execution of the program that created them: without this capability, the data is only saved in Ram memory and will be lost when the computer is turned off.
In computer programming, persistence refers in particular to the ability to survive data structures when executing a single program. This is achieved by saving the data in non-volatile storage, such as on a file system or on a database (eg web applications).
Examples of persistence are used for example in Java serialization to save Java objects on a hard drive, or in Java EE to save data from an Enterprise Java Beans to a database in three-tier web applications. < / p> Voices correlateemodify wikitesto
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