    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
    015    package 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     */
    023    public 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    }