    001// Copyright 2011 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.plastic;
    016
    017/**
    018 * A wrapper around a {@link PlasticClass} that allows the class to be converted into a concrete class, once all
    019 * transformations are complete.
    020 *
    021 * @param <T>
    022 */
    023public interface PlasticClassTransformation<T>
    024{
    025    /**
    026     * Returns the PlasticClass being transformed.
    027     *
    028     * @return PlasticClass instance
    029     */
    030    PlasticClass getPlasticClass();
    031
    032    /**
    033     * Terminates the class transformation process, finishes any final bookkeeping, and
    034     * returns an object used to instantiate the transformed class. Once this method is invoked,
    035     * no other methods of the {@link PlasticClass} (or related objects) can be invoked.
    036     * <p>
    037     * The returned ClassInstantiator has an empty {@link InstanceContext} map. Use
    038     * {@link ClassInstantiator#with(Class, Object)} to create a new ClassInstantiator with new InstanceContext entries.
    039     */
    040    ClassInstantiator<T> createInstantiator();
    041}