Class WrapperComponentManager
- java.lang.Object
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- org.apache.avalon.framework.component.WrapperComponentManager
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- All Implemented Interfaces:
ComponentManager
public class WrapperComponentManager extends java.lang.Object implements ComponentManager
This is aComponentManager
implementation that can wrap around aServiceManager
object effectively adapting aServiceManager
interface to aComponentManager
interface.- Version:
- CVS $Revision: 1.14 $ $Date: 2003/02/14 15:13:12 $
- Author:
- Avalon Development Team
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Constructor Summary
Constructors Constructor Description WrapperComponentManager(ServiceManager manager)
Creation of a new wrapper component manger using a supplied service manager as a source backing the wrapped.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
hasComponent(java.lang.String key)
Check to see if aComponent
exists for a key.Component
lookup(java.lang.String key)
Retrieve a component via a key.void
release(Component component)
Return theComponent
when you are finished with it.
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Constructor Detail
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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.
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Method Detail
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lookup
public Component lookup(java.lang.String key) throws ComponentException
Retrieve a component via a key.- Specified by:
lookup
in interfaceComponentManager
- Parameters:
key
- the key- Returns:
- the component
- Throws:
ComponentException
- if unable to aquire component
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hasComponent
public boolean hasComponent(java.lang.String key)
Check to see if aComponent
exists for a key.- Specified by:
hasComponent
in interfaceComponentManager
- Parameters:
key
- a string identifying the key to check.- Returns:
- True if the component exists, False if it does not.
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release
public void release(Component component)
Return theComponent
when you are finished with it. This allows theComponentManager
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 interfaceComponentManager
- Parameters:
component
- The Component we are releasing.
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