    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    package org.apache.tapestry5.internal.services;
    015
    016    import org.apache.tapestry5.services.ComponentClassResolver;
    017    import org.apache.tapestry5.services.InvalidationEventHub;
    018    import org.apache.tapestry5.services.InvalidationListener;
    019
    020    /**
    021     * Split-out implementation of {@link InvalidationEventHub} that separates it from {@link ComponentInstantiatorSource}.
    022     * This was necessary due to some refactoring that made {@link ComponentClassResolver} and ComponentInstantiatorSource
    023     * mutually dependent.
    024     *
    025     * @since 5.3
    026     */
    027    public interface InternalComponentInvalidationEventHub extends InvalidationEventHub
    028    {
    029        /**
    030         * Invoked when the {@link ComponentInstantiatorSource} notices that
    031         * a class file within any of the controlled packages has changed. Fires the
    032         * {@link InvalidationListener#objectWasInvalidated()} notification.
    033         */
    034        void classInControlledPackageHasChanged();
    035    }