001// Copyright 2004, 2005 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.tapestry.services; 016 017import java.util.Locale; 018 019/** 020 * Used to determine what is the client-specified locale, if any, for the current request. This may 021 * be stored in the request as an HTTP Cookie, or may be interpolated from request headers. 022 * Additionally, the "raw" value provided by the client may be filtered down. 023 * 024 * @author Howard Lewis Ship 025 * @since 4.0 026 */ 027public interface RequestLocaleManager 028{ 029 /** 030 * Determines the locale to use for processing the current request. The value is returned, but 031 * also stored as {@link org.apache.tapestry.services.RequestGlobals#setIncomingLocale(Locale)}. 032 */ 033 034 public Locale extractLocaleForCurrentRequest(); 035 036 /** 037 * Stores the thread's locale as a cookie for later use. 038 */ 039 040 public void persistLocale(); 041}