    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.plastic;
    014
    015/**
    016 * A wrapper around a {@link PlasticClass} that allows the class to be converted into a concrete class, once all
    017 * transformations are complete.
    018 *
    019 * @param <T> the type being generated.
    020 */
    021public interface PlasticClassTransformation<T>
    022{
    023    /**
    024     * Returns the PlasticClass being transformed.
    025     *
    026     * @return PlasticClass instance
    027     */
    028    PlasticClass getPlasticClass();
    029
    030    /**
    031     * Terminates the class transformation process, finishes any final bookkeeping, and
    032     * returns an object used to instantiate the transformed class. Once this method is invoked,
    033     * no other methods of the {@link PlasticClass} (or related objects) can be invoked.
    034     *
    035     * The returned ClassInstantiator has an empty {@link InstanceContext} map. Use
    036     * {@link ClassInstantiator#with(Class, Object)} to create a new ClassInstantiator with new InstanceContext entries.
    037     */
    038    ClassInstantiator<T> createInstantiator();
    039}