    001// Copyright 2009 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.model.ComponentModel;
    018
    019/**
    020 * Access to component models (as provided via {@link org.apache.tapestry5.internal.services.ComponentInstantiatorSource}).
    021 * <p/>
    022 * This is a good candidate to move into the public services package.
    023 *
    024 * @since 5.1.0.0
    025 */
    026public interface ComponentModelSource
    027{
    028    /**
    029     * Returns the model for a particular component class name.
    030     *
    031     * @param componentClassName name of component class
    032     * @return model for component
    033     * @throws IllegalArgumentException if component class name does not match a known component
    034     */
    035    ComponentModel getModel(String componentClassName);
    036
    037    /**
    038     * Returns the model for a page.  The page name is resolved to a component class name.
    039     *
    040     * @param pageName name of page
    041     * @return the model for the page
    042     * @throws IllegalArgumentException if the page name is not a known page name
    043     */
    044    ComponentModel getPageModel(String pageName);
    045}