    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
    015    package org.apache.tapestry5;
    016
    017    import org.apache.tapestry5.ioc.AnnotationProvider;
    018
    019    /**
    020     * Used to read or update the value associated with a property. A PropertyConduit provides access to the annotations on
    021     * the underlying getter and/or setter methods.
    022     */
    023    public interface PropertyConduit extends AnnotationProvider
    024    {
    025        /**
    026         * Reads the property from the instance.
    027         *
    028         * @param instance object containing the property
    029         * @return the current value of the property
    030         */
    031        Object get(Object instance);
    032
    033        /**
    034         * Changes the current value of the property.
    035         *
    036         * @param instance object containing the property
    037         * @param value    to change the property to
    038         */
    039        void set(Object instance, Object value);
    040
    041        /**
    042         * Returns the type of the property read or updated by the conduit.
    043         */
    044        Class getPropertyType();
    045    }