The Avalon ServiceManager

The ServiceManager is part of the Avalon Framework. It replaces the deprecated ComponentManager used in ECM. The basic interface is as follows: 

package org.apache.avalon.framework.service;

public interface ServiceManager
{

    Object lookup( String key ) throws ServiceException;

    boolean hasService( String key );

    void release( Object object );
}

see javadocs for more detailed information.

Supported Lookup Conventions

Given: 

   Service Interface = org.my.project.MyService
   MyService.ROLE = "org.my.project.MyService"
   Service Implementation #1 = org.my.project.impl.ServiceImplOne
   Service Implementation #1 Alias = "serviceOne"
   Service Implementation #2 = org.my.project.impl.ServiceImplTwo
   Service Implementation #2 Alias = "serviceTwo"

lookup(x)

Returns

ECM

Fortress

Phoenix

Merlin

Comments

org.my.project.MyService

ServiceSelector

(./)

org.my.project.MyService

either 'serviceOne' or 'serviceTwo'

(./)

(./)

(./)

org.my.project.MyServiceSelector

ServiceSelector

(./)

(./)

(./)

org.my.project.MyService/serviceOne

serviceOne

(./)

org.my.project.MyService/serviceTwo

serviceTwo

(./)

serviceOne

serviceOne

(./)

(./)

(./)

serviceTwo

serviceTwo

(./)

(./)

(./)

org.my.project.MyService[]

java.util.List(?)

(./)

A list of all the implementations

org.my.project.MyService{}

java.util.Map

(./)

A Map of all implemenations with their aliases as keys

ServiceManager (last edited 2009-09-20 23:16:38 by localhost)