001    // Copyright 2006, 2011 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.internal.transform;
016    
017    import org.apache.tapestry5.annotations.SupportsInformalParameters;
018    import org.apache.tapestry5.model.MutableComponentModel;
019    import org.apache.tapestry5.plastic.PlasticClass;
020    import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
021    import org.apache.tapestry5.services.transform.TransformationSupport;
022    
023    /**
024     * Checks for the {@link SupportsInformalParameters} annotation, settting the corresponding flag on the model if
025     * present.
026     */
027    public class SupportsInformalParametersWorker implements ComponentClassTransformWorker2
028    {
029        public void transform(PlasticClass plasticClass, TransformationSupport support, MutableComponentModel model)
030        {
031            if (plasticClass.hasAnnotation(SupportsInformalParameters.class))
032            {
033                model.enableSupportsInformalParameters();
034            }
035        }
036    }