001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *        http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 */
019
020package org.apache.isis.core.commons.authentication;
021
022import java.io.Serializable;
023import java.util.List;
024
025/**
026 * Moving from runtime, so that can preserve messages between interactions that
027 * correspond to the same session.
028 */
029public interface MessageBroker extends Serializable {
030
031    void addMessage(String message);
032    List<String> getMessages();
033    String getMessagesCombined();
034
035    void addWarning(String message);
036    List<String> getWarnings();
037    String getWarningsCombined();
038
039
040    void setApplicationError(String message);
041    String getApplicationError();
042
043    void ensureEmpty();
044
045}