Encyclopedia > Persistence

  Article Content

Persistence

Persistence is the term used in computer science to describe a capability used by a computer programmer to store data structures in non-volatile storage such as a file system or a relational database.

Without this capability data structures only exist in-memory, and will be lost when a program exits. Persistence allows, for example, a program to be restarted and re-loaded with the data structures from a previous invocation of the program.

Design patterns solving this problem are container based persistence[?] and component based persistence[?].

Examples of persistence are using Java serialization[?] to store Java objects on disk or using J2EE to store Enterprise Java Beans in a relational database.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Flapper

... where they danced provocatively, smoked cigarettes through long holders, and dated men -- possibly men they would have sex with. They rode bicycles and drove cars. They ...

 
 
 
This page was created in 34.8 ms