// Copyright 2007, 2008, 2009 The Apache Software Foundation

 //

 // Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0

 //

 // 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 org.apache.tapestry5.internal.bindings;

 import org.apache.tapestry5.Binding;

 import org.apache.tapestry5.ComponentResources;

 import org.apache.tapestry5.FieldTranslator;

 import org.apache.tapestry5.internal.services.StringInterner;

 import org.apache.tapestry5.ioc.Location;

 import org.apache.tapestry5.services.BindingFactory;

 import org.apache.tapestry5.services.FieldTranslatorSource;

 /**

  * Interprets the binding expression as the name of a {@link org.apache.tapestry5.Translator} provided by the {@link

  * org.apache.tapestry5.services.TranslatorSource}.

  */

 public class TranslateBindingFactory implements BindingFactory

 {

     private final FieldTranslatorSource source;

     private final StringInterner interner;

     public TranslateBindingFactory(FieldTranslatorSource source, StringInterner interner)

     {

         this.source = source;

         this.interner = interner;

     }

     public Binding newBinding(String description, ComponentResources container,

                               final ComponentResources component, final String expression, Location location)

     {

         return new InvariantBinding(location, FieldTranslator.class, interner.intern(description + ": " + expression))

         {

             public Object get()

             {

                 return source.createTranslator(component, expression);

             }

         };

     }

 }