001/* 002 * Copyright 2002-2013 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.context.i18n; 018 019import java.util.TimeZone; 020 021import org.springframework.lang.Nullable; 022 023/** 024 * Extension of {@link LocaleContext}, adding awareness of the current time zone. 025 * 026 * <p>Having this variant of LocaleContext set to {@link LocaleContextHolder} means 027 * that some TimeZone-aware infrastructure has been configured, even if it may not 028 * be able to produce a non-null TimeZone at the moment. 029 * 030 * @author Juergen Hoeller 031 * @author Nicholas Williams 032 * @since 4.0 033 * @see LocaleContextHolder#getTimeZone() 034 */ 035public interface TimeZoneAwareLocaleContext extends LocaleContext { 036 037 /** 038 * Return the current TimeZone, which can be fixed or determined dynamically, 039 * depending on the implementation strategy. 040 * @return the current TimeZone, or {@code null} if no specific TimeZone associated 041 */ 042 @Nullable 043 TimeZone getTimeZone(); 044 045}