WrapperServiceSelector

java.lang.Object
- org.apache.avalon.framework.service.WrapperServiceSelector

All Implemented Interfaces:

ServiceSelector
```
public class WrapperServiceSelector
extends java.lang.Object
implements ServiceSelector
```
This is a ServiceSelector implementation that can wrap around a legacy ComponentSelector object effectively adapting a ComponentSelector interface to a ServiceSelector interface.
This class implements the Component interface because it is used in environments which expect all components to implement Component.

Since:

4.1.4

Version:

CVS $Revision: 1.10 $ $Date: 2004/02/11 14:34:26 $

Author:

Avalon Development Team

Constructor Summary

Constructors
Constructor and Description
`WrapperServiceSelector(java.lang.String key, ComponentSelector selector)` This constructor is a constructor for a ComponentServiceManager

Method Summary

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

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

- Constructor Detail
  - WrapperServiceSelector
```
public WrapperServiceSelector(java.lang.String key,
                              ComponentSelector selector)
```
    This constructor is a constructor for a ComponentServiceManager
    
    Parameters:
    
    key - the key used to aquire this selector
    
    selector - the selector to wrap
- Method Detail
  - select
```
public java.lang.Object select(java.lang.Object policy)
                        throws ServiceException
```
    Select a service based on a policy.
    
    Specified by:
    
    select in interface ServiceSelector
    
    Parameters:
    
    policy - the policy
    
    Returns:
    
    the service
    
    Throws:
    
    ServiceException - if unable to select service
  - isSelectable
```
public boolean isSelectable(java.lang.Object policy)
```
    Check to see if a Object exists relative to the supplied policy.
    
    Specified by:
    
    isSelectable in interface ServiceSelector
    
    Parameters:
    
    policy - a Object containing the selection criteria
    
    Returns:
    
    True if the component is available, False if it not.
  - release
```
public void release(java.lang.Object 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 ServiceSelector
    
    Parameters:
    
    object - The Object we are releasing.

Class WrapperServiceSelector

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

WrapperServiceSelector

Method Detail

select

isSelectable

release