java.lang.Object
- org.apache.avalon.framework.component.WrapperComponentSelector

All Implemented Interfaces:

Component, ComponentSelector
```
public class WrapperComponentSelector
extends java.lang.Object
implements ComponentSelector
```
This is a ServiceSelector implementation that can wrap around a legacy ComponentSelector object effectively adapting a ComponentSelector interface to a ServiceSelector interface.

Since:

4.1.4

Version:

CVS $Revision: 1.11 $ $Date: 2004/02/11 14:34:25 $

Author:

Avalon Development Team

Constructor Summary

Constructors
Constructor	Description
`WrapperComponentSelector(java.lang.String key, ServiceSelector selector)`	This constructor is a constructor for a WrapperComponentSelector.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`hasComponent(java.lang.Object policy)`	Check to see if a `Component` exists relative to the supplied policy.
`void`	`release(Component object)`	Return the `Object` when you are finished with it.
`Component`	`select(java.lang.Object policy)`	Select a Component based on a policy.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - WrapperComponentSelector
```
public WrapperComponentSelector(java.lang.String key,
                                ServiceSelector selector)
```
    This constructor is a constructor for a WrapperComponentSelector.
    
    Parameters:
    
    key - the key used to aquire this selector
    
    selector - the selector to wrap
- Method Detail
  - select
```
public Component select(java.lang.Object policy)
                 throws ComponentException
```
    Select a Component based on a policy.
    
    Specified by:
    
    select in interface ComponentSelector
    
    Parameters:
    
    policy - the policy
    
    Returns:
    
    the Component
    
    Throws:
    
    ComponentException - if unable to select service
  - hasComponent
```
public boolean hasComponent(java.lang.Object policy)
```
    Check to see if a Component exists relative to the supplied policy.
    
    Specified by:
    
    hasComponent in interface ComponentSelector
    
    Parameters:
    
    policy - a Object containing the selection criteria
    
    Returns:
    
    True if the component is available, False if it not.
  - release
```
public void release(Component object)
```
    Return the Object when you are finished with it. This allows the ServiceSelector to handle the End-Of-Life Lifecycle events associated with the Object. Please note, that no Exception should be thrown at this point. This is to allow easy use of the ServiceSelector system without having to trap Exceptions on a release.
    
    Specified by:
    
    release in interface ComponentSelector
    
    Parameters:
    
    object - The Object we are releasing.

Class WrapperComponentSelector

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

WrapperComponentSelector

Method Detail

select

hasComponent

release