- request: means to maintain the state for the time of a request
- session: means to maintain the state for the time of a session (between page views)
- none: means that the bean will be created but not put into a scope.
Documentation / Reference
- Java EE 6: JSR 314: JavaServer Faces 2.0 specification
- Java EE 5: JSR 252: JavaServer Faces 1.2