/**

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

  *

  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

  * Other names may be trademarks of their respective owners.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

  * License.  When distributing the software, include this License Header

  * Notice in each file and include the License file at

  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

  * your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  *

  * Contributor(s):

  *

  * The Original Software is NetBeans. The Initial Developer of the Original

  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

  *

  * If you wish your version of this file to be governed by only the CDDL

  * or only the GPL Version 2, indicate your decision by adding

  * "[Contributor] elects to include this software in this distribution

  * under the [CDDL or GPL Version 2] license." If you do not indicate a

  * single choice of license, a recipient has the option to distribute

  * your version of this file under either the CDDL, the GPL Version 2 or

  * to extend the choice of license to its licensees as provided above.

  * However, if you add GPL Version 2 code and therefore, elected the GPL

  * Version 2 license, then the option applies only if the new code is

  * made subject to such option by the copyright holder.

  */

 package org.apidesign.html.json.spi;

 import net.java.html.json.Function;

 import net.java.html.json.Model;

 /** Describes a function provided by the {@link Model} and 

  * annotated by {@link Function} annotation.

  *

  * @author Jaroslav Tulach <jtulach@netbeans.org>

  */

 public abstract class FunctionBinding {

     FunctionBinding() {

     }

     /** Returns name of the function.

      * @return function name

      */

     public abstract String getFunctionName();

     /**

      * Calls the function provided data associated with current element, as well

      * as information about the event that triggered the event.

      *

      * @param data data associated with selected element

      * @param ev event (with additional properties) that triggered the event

      */

     public abstract void call(Object data, Object ev);

     static <M> FunctionBinding registerFunction(String name, int index, M model, Proto.Type<M> access) {

         return new Impl<M>(name, index, model, access);

     }

     private static final class Impl<M> extends FunctionBinding {

         final String name;

         private final M model;

         private final Proto.Type<M> access;

         private final int index;

         public Impl(String name, int index, M model, Proto.Type<M> access) {

             this.name = name;

             this.index = index;

             this.model = model;

             this.access = access;

         }

         @Override

         public String getFunctionName() {

             return name;

         }

         @Override

         public void call(Object data, Object ev) {

             try {

                 access.call(model, index, data, ev);

             } catch (Throwable ex) {

                 ex.printStackTrace();

             }

         }

     }

 }