Package org.apache.avalon.framework.component

Class WrapperComponentManager

java.lang.Object
org.apache.avalon.framework.component.WrapperComponentManager
All Implemented Interfaces:
ComponentManager
public class WrapperComponentManager extends Object implements ComponentManager
This is a ComponentManager implementation that can wrap around a ServiceManager object effectively adapting a ServiceManager interface to a ComponentManager interface.
Since:
4.1.4
Version:
CVS $Revision: 1.18 $ $Date: 2004/02/11 14:34:25 $
Author:
Avalon Development Team

  • Constructor Details

    • WrapperComponentManager

      public WrapperComponentManager(ServiceManager manager)
      Creation of a new wrapper component manger using a supplied service manager as a source backing the wrapped. This implementation redirects lookup requests to the supplied service manager provided under this constructor. No attempt is made to proxy object supplied by the primary manager as Component instances - as such, it is the responsibility of the application establishing the wrapper to ensure that objects accessed via the primary manager implement the Component interface.
      Parameters:
      manager - the service manager backing the wrapper.

  • Method Details

    • lookup

      public Component lookup(String key) throws ComponentException
      Retrieve a component via a key.
      Specified by:
      lookup in interface ComponentManager
      Parameters:
      key - the key
      Returns:
      the component
      Throws:
      ComponentException - if unable to aquire component

    • hasComponent

      public boolean hasComponent(String key)
      Check to see if a Component exists for a key.
      Specified by:
      hasComponent in interface ComponentManager
      Parameters:
      key - a string identifying the key to check.
      Returns:
      True if the component exists, False if it does not.

    • release

      public void release(Component component)
      Return the Component when you are finished with it. This allows the ComponentManager to handle the End-Of-Life Lifecycle events associated with the Component. Please note, that no Exceptions should be thrown at this point. This is to allow easy use of the ComponentManager system without having to trap Exceptions on a release.
      Specified by:
      release in interface ComponentManager
      Parameters:
      component - The Component we are releasing.