67 lines
2.3 KiB
Java
67 lines
2.3 KiB
Java
/*
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* Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* <code>BackEnd</code> is an abstract base class for a back-end of compiling
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* Olson's zoneinfo database and generating Java zoneinfo database.
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*
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* @since 1.4
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*/
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abstract class BackEnd {
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/**
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* Receives each zone's TimeZone information which was created by
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* {@link Zoneinfo#parse} in class <code>Zoneinfo</code>,
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* and processes it.
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*
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* @param tz Timezone object for each zone
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* @return 0 if no error occurred, otherwise 1.
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*/
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abstract int processZoneinfo(Timezone tz);
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/**
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* Receives whole information which is generated by JavaZic's front-end
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* in the form of Mapping object and generates all Java zone information
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* files.
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*
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* @param m Mappings object which is generated by
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* {@link Main#compile() Main.compile()}.
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* @return 0 if no error occurred, otherwise 1.
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*/
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abstract int generateSrc(Mappings m);
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/**
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* Decides which backend class should be used and returns its instance.
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* @return an instance of backend class
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*/
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static BackEnd getBackEnd() {
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if (Zoneinfo.isYearForTimeZoneDataSpecified) {
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return new Simple();
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} else if (Main.outputDoc) {
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return new GenDoc();
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} else {
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return new Gen();
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}
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}
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}
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