    001// Licensed under the Apache License, Version 2.0 (the "License");
    002// you may not use this file except in compliance with the License.
    003// You may obtain a copy of the License at
    004//
    005//     http://www.apache.org/licenses/LICENSE-2.0
    006//
    007// Unless required by applicable law or agreed to in writing, software
    008// distributed under the License is distributed on an "AS IS" BASIS,
    009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    010// See the License for the specific language governing permissions and
    011// limitations under the License.
    012
    013package org.apache.tapestry5.internal.services;
    014
    015import org.apache.tapestry5.model.ComponentModel;
    016
    017/**
    018 * Access to component models (as provided via {@link org.apache.tapestry5.internal.services.ComponentInstantiatorSource}).
    019 *
    020 * This is a good candidate to move into the public services package.
    021 *
    022 * @since 5.1.0.0
    023 */
    024public interface ComponentModelSource
    025{
    026    /**
    027     * Returns the model for a particular component class name.
    028     *
    029     * @param componentClassName name of component class
    030     * @return model for component
    031     * @throws IllegalArgumentException if component class name does not match a known component
    032     */
    033    ComponentModel getModel(String componentClassName);
    034
    035    /**
    036     * Returns the model for a page.  The page name is resolved to a component class name.
    037     *
    038     * @param pageName name of page
    039     * @return the model for the page
    040     * @throws IllegalArgumentException if the page name is not a known page name
    041     */
    042    ComponentModel getPageModel(String pageName);
    043}