001// Copyright 2007 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
015package org.apache.tapestry5.internal.services;
016
017import org.apache.tapestry5.PropertyConduit;
018import org.apache.tapestry5.ioc.services.TypeCoercer;
019
020import java.lang.annotation.Annotation;
021
022public class CoercingPropertyConduitWrapper implements PropertyConduit
023{
024    private final PropertyConduit conduit;
025
026    private final TypeCoercer coercer;
027
028    public CoercingPropertyConduitWrapper(final PropertyConduit conduit, final TypeCoercer coercer)
029    {
030        this.conduit = conduit;
031        this.coercer = coercer;
032    }
033
034    public Object get(Object instance)
035    {
036        return conduit.get(instance);
037    }
038
039    public <T extends Annotation> T getAnnotation(Class<T> annotationClass)
040    {
041        return conduit.getAnnotation(annotationClass);
042    }
043
044    public Class getPropertyType()
045    {
046        return conduit.getPropertyType();
047    }
048
049    @SuppressWarnings("unchecked")
050    public void set(Object instance, Object value)
051    {
052        Object coerced = coercer.coerce(value, getPropertyType());
053
054        conduit.set(instance, coerced);
055    }
056
057}