+Show TOC
×Hide TOC

ServiceLocator

Kind of class:	public class
Package:	com.bourre.service
Inherits from:	AbstractLocator
Version:	1.0
Author:	Francis Bourre
Classpath:	com.bourre.service.ServiceLocator
File last modified:	Monday, 24 November 2008, 11:36:51

► View source

▼ Hide source

/*
 * Copyright the original author or authors.
 * 
 * Licensed under the MOZILLA PUBLIC LICENSE, Version 1.1 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.mozilla.org/MPL/MPL-1.1.html
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.bourre.service 
{
    import com.bourre.core.AbstractLocator;    
    
    /**
     * @author Francis Bourre
     * @version 1.0
     */
    public class ServiceLocator 
        extends AbstractLocator
    {
        public function ServiceLocator() 
        {
            super( null, ServiceLocatorListener, null );
        }

        override protected function onRegister( key : String = null, service : Object = null ) : void
        {
            var e : ServiceLocatorEvent = new ServiceLocatorEvent( ServiceLocatorEvent.onRegisterServiceEVENT, key, this );
            if ( service is Class ) {e.setServiceClass( service as Class );} else {e.setService( service as Service );}
            broadcastEvent( e );
        }

        override protected function onUnregister( key : String = null ) : void
        {
            broadcastEvent( new ServiceLocatorEvent( ServiceLocatorEvent.onUnregisterServiceEVENT, key, this ) );
        }

        public function registerService( key : String, service : Service ) : Boolean
        {
            return register( key, service );
        }

        public function registerServiceClass( key : String, serviceClass : Class ) : Boolean
        {
            return register( key, serviceClass );
        }

        override public function locate( key : String ) : Object
        {
            try
            {
                var o : Object =  super.locate( key );
                return ( o is Class ) ? new ( o as Class )() : o;

            } catch ( e : Error )
            {
                getLogger().fatal( e.message );
                throw e;
            }
            
            return null;
        }

        public function getService( key : String ) : Service
        {
            try
            {
                var service : Service = locate( key ) as Service;
                return service;

            } catch ( e : Error )
            {
                throw( e );
            }

            return null;
        }

        public function addListener( listener : ServiceLocatorListener ) : Boolean
        {
            return addListener( listener );
        }

        public function removeListener( listener : ServiceLocatorListener ) : Boolean
        {
            return removeListener( listener );
        }
    }
}

Summary

Constructor

ServiceLocator

Instance methods

registerService (key:String, service:Service) : Boolean
registerServiceClass (key:String, serviceClass:Class) : Boolean
locate (key:String) : Object
getService (key:String) : Service
addListener (listener:ServiceLocatorListener) : Boolean
removeListener (listener:ServiceLocatorListener) : Boolean

Constructor

ServiceLocator

public function ServiceLocator (

)

Instance methods

addListener

public function addListener (

listener:ServiceLocatorListener) : Boolean

getService

public function getService (

key:String) : Service

locate

override public function locate (

key:String) : Object

Overrides:

AbstractLocator.locate

registerService

public function registerService (

key:String, service:Service) : Boolean

registerServiceClass

public function registerServiceClass (

key:String, serviceClass:Class) : Boolean

removeListener

public function removeListener (

listener:ServiceLocatorListener) : Boolean