    001// Copyright 2008, 2010, 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.services;
    016
    017/**
    018 * A service that allows listeners to be registered to learn about {@link org.apache.tapestry5.Link} creation.
    019 */
    020public interface LinkCreationHub
    021{
    022    /**
    023     * Adds a listener. If the scope of the listener is per-thread, then it must be removed.
    024     *
    025     * @param listener
    026     */
    027    void addListener(LinkCreationListener listener);
    028
    029    /**
    030     * Adds a listener. If the scope of the listener is per-thread, then it must be removed.
    031     *
    032     * @param listener
    033     * @since 5.2.0
    034     */
    035    void addListener(LinkCreationListener2 listener);
    036}