Package com.atlassian.johnson

Johnson is an application consistency framework.

See: Description

Interface Summary

Interface	Description
Initable	When implementing Johnson interfaces, this secondary interface can also be implemented to indicate the object needs additional initialisation.
JohnsonEventContainer	Interface defining a container for Johnson Events

Class Summary

Class	Description
DefaultJohnsonEventContainer	A default implementation of JohnsonEventContainer which stores events in a list.
Johnson	Singleton class for controlling Johnson.

Exception Summary

Exception	Description
JohnsonException	Base class for all exceptions thrown by Johnson.

Package com.atlassian.johnson Description

Johnson is an application consistency framework.

Johnson's primary interaction point is Johnson, which provides methods to initialize the framework and accessors for the configuration and event container which are available after initialization.

The config package contains a standard configuration interface as well as a default implementation which loads configuration from an XML file. Additional documentation on how to configure Johnson is available in that package, including documentation on the default XML format.

The context package contains a ServletContextListener which can be wired into a web application to initialise and terminate Johnson as part of the web application's lifecycle. This is the preferred way to manage the framework's lifecycle.

The filters package contains various servlet filters which can be wired into a web application to achieve different behaviours, such as redirecting users to a standard error page or returning a standard 503 Service Unavailable error. Further documentation is available in that package.