    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.beanmodel;
    016
    017import org.apache.tapestry5.commons.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 */
    023public 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}