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AbstractDataRequest

Kind of class:	class
Inherits from:	none
Implements:	IDataRequest
Known subclasses:	FileRequest RemotingRequest SharedObjectLoadRequest XMLToObjectRequest
Version:	1.0
Author:	Francis Bourre
Classpath:	com.bourre.data.request.AbstractDataRequest
File last modified:	Wednesday, 31 October 2007, 07:35:29

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/*
 * 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.
 */
 
/**
 * @author Francis Bourre
 * @version 1.0
 */

import com.bourre.data.request.DataRequestEvent;
import com.bourre.data.request.IDataRequest;
import com.bourre.data.request.IDataRequestListener;
import com.bourre.events.EventBroadcaster;
import com.bourre.events.IEvent;
import com.bourre.log.PixlibDebug;
import com.bourre.log.PixlibStringifier;

class com.bourre.data.request.AbstractDataRequest 
    implements IDataRequest
{
    private var _oEB : EventBroadcaster;
    private var _oResult;
    private var _eResult : DataRequestEvent;
    private var _eError : DataRequestEvent;
    
    public function AbstractDataRequest() 
    {
        _oEB = new EventBroadcaster( this );

        _eResult = new DataRequestEvent( DataRequestEvent.onDataResultEVENT, this );
        _eError = new DataRequestEvent( DataRequestEvent.onDataErrorEVENT, this );
    }
    
    public function getResult()
    {
        return _oResult;
    }
    
    public function addListener( listener : IDataRequestListener ) : Void
    {
        _oEB.addListener( listener );
    }
    
    public function removeListener( listener : IDataRequestListener ) : Void
    {
        _oEB.removeListener( listener );
    }
    
    public function fireEvent( e : IEvent ) : Void
    {
        _oEB.broadcastEvent( e );
    }
    
    /*
     * virtual methods
     */
    public function setURL( url : String ) : Void
    {
        PixlibDebug.ERROR( this + ".setURL() must be implemented in concrete class." );
    }
    
    public function setArguments() : Void
    {
        PixlibDebug.ERROR( this + ".setArguments() must be implemented in concrete class." );
    }
    
    public function execute( e : IEvent ) : Void
    {
        PixlibDebug.ERROR( this + ".execute() must be implemented in concrete class." );
    }
    
    /**
     * Returns the string representation of this instance.
     * @return the string representation of this instance
     */
    public function toString() : String 
    {
        return PixlibStringifier.stringify( this );
    }
}