package votorola.a.count.gwt; // Copyright 2012, Michael Allan.  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Votorola Software"), to deal in the Votorola Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Votorola Software, and to permit persons to whom the Votorola Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Votorola Software. THE VOTOROLA SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE VOTOROLA SOFTWARE OR THE USE OR OTHER DEALINGS IN THE VOTOROLA SOFTWARE.

import com.google.gwt.user.client.rpc.AsyncCallback;
import votorola.a.web.gwt.*;


/** A callback for requests from the count engine.
  */
public abstract class CountCallback<T> implements AsyncCallback<T>
{


    /** Constructs a CountCallback.
      *
      *     @param _loc the {@linkplain CountCache#requestCount_loc(String,StringBuilder)
      *       request location}.
      *     @param _warningSink the warning sink to use in the event of a {@linkplain
      *       #onFailure(Throwable) failure}.
      */
    public CountCallback( String _loc, WarningSink _warningSink )
    {
        loc = _loc;
        warningSink = _warningSink;
    }



   // - A s y n c - C a l l b a c k ------------------------------------------------------


    /** Called when the request completes abnormally.  The implementation of this method
      * in class CountCallback appends an informative message to the {@linkplain
      * CountCallback#CountCallback(String,WarningSink) warning sink}.
      */
    public void onFailure( final Throwable x )
    {
        warningSink.addWarning( App.i().mesA().count_gwt_CountCallback( x, loc ));
    }



//// P r i v a t e ///////////////////////////////////////////////////////////////////////


    private final String loc;



    private final WarningSink warningSink;


}