com.atlassian.jira.plugin
Interface ComponentClassManager

All Known Implementing Classes:

DefaultComponentClassManager

public interface ComponentClassManager

Provides methods to help load and instantiate classes that can handle OSGi plugins with their ClassLoaders and Components that don't live in Pico Container.

Since:

v4.0

Method Summary

<T> Class<T>	loadClass(String className) Load a class from Jira core, or a plugin including plugins that are not enabled.
<T> T	newInstance(String className) Instantiates the named class using OSGi ClassLoaders and Pico/Spring injection as appropriate.
<T> T	newInstanceFromPlugin(Class<T> clazz, com.atlassian.plugin.Plugin plugin) Instantiates the named class by directly using the plugin the class was loaded from and its autowiring strategy.

Method Detail

newInstance

<T> T newInstance(String className)
              throws ClassNotFoundException

Instantiates the named class using OSGi ClassLoaders and Pico/Spring injection as appropriate.

Parameters:

className - the name of the class to instantiate.

Returns:

the instance of the requested class.

Throws:

ClassNotFoundException - if the given className was not able to be loaded.

newInstanceFromPlugin

<T> T newInstanceFromPlugin(Class<T> clazz,
                            com.atlassian.plugin.Plugin plugin)

Instantiates the named class by directly using the plugin the class was loaded from and its autowiring strategy.

Parameters:

clazz - the class to instantiate

plugin - the plugin in which the class was loaded from

Returns:

the instance of the requested class.

See Also:

newInstance(String)

loadClass

<T> Class<T> loadClass(String className)
                   throws ClassNotFoundException

Load a class from Jira core, or a plugin including plugins that are not enabled.

Type Parameters:

T - The Class type.

Parameters:

className - Fully qualified class name.

Returns:

the loaded Class of type T.

Throws:

ClassNotFoundException - if the given className was not able to be loaded.