Mercurial > hg > truffle
view graal/com.oracle.max.base/src/com/sun/max/collect/SortedProperties.java @ 4266:e2499e6d8aa7
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 11 Jan 2012 16:31:46 +0100 |
parents | bc8527f3071c |
children |
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/* * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.max.collect; import java.io.*; import java.util.*; import com.sun.max.*; /** * A subclass of {@link Properties} that {@linkplain Collections#sort(java.util.List) sorts} its properties as they * are saved. */ public class SortedProperties extends Properties { /** * */ private static final long serialVersionUID = 2666154105480821405L; /** * Overridden so that the properties are {@linkplain #store(Writer, String) saved} sorted according their keys. */ @Override public synchronized Enumeration<Object> keys() { final Enumeration<Object> keysEnum = super.keys(); final Vector<String> keyList = new Vector<>(size()); while (keysEnum.hasMoreElements()) { keyList.add((String) keysEnum.nextElement()); } Collections.sort(keyList); final Class<Enumeration<Object>> type = null; return Utils.cast(type, keyList.elements()); } }