/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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 program 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 at /legal/license.txt).
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.j2me.global;
/**
* This class customizes the {@link javax.microedition.global.StringComparator}
* implementation to rely on platform string comparison capabilities.
*/
public class CollationAbstractionLayerImpl extends CollationAbstractionLayer {
/**
* Create instance of <code>CollationAbstractionLayerImpl</code>. This
* constructor is necessary because of <code>Class.forName()</code> creation
* call in
* {@link com.sun.j2me.global.CollationAbstractionLayer#getInstance}.
*/
public CollationAbstractionLayerImpl() { }
/**
* Returns an instance of the {@link StringComparatorImpl} class,
* which realizes all <code>StringComparator</code> methods in a
* platform-specific way.
*
* @param locale the locale
* @param level the level of comparison
* @return the instance of the <code>StringComparatorImpl</code>
*/
public CommonStringComparator getStringComparator(String locale,
int level) {
return new StringComparatorImpl(locale, level);
}
/**
* Gets the locales for which a <code>StringComparator</code> is available
* in this implementation. If no locales are supported, the returned array
* must be empty, not <code>null</code>. As the value <code>null</code> is
* not technically a valid locale, but a special value to trigger the
* generic collation algorithm, it must not appear in the array.
*
* @return an array of valid <code>microedition.locale</code> values
*/
public String[] getSupportedLocales() {
int lcount = getCollationLocalesCount();
if (lcount == 0) return new String[0];
int index = 0;
String locale = getCollationLocaleName(0);
if (locale == null || locale.equals("")){
index = 1;
}
String[] locales = new String[lcount-index];
for (int i=0; index < lcount; index++) {
locales[i++] = getCollationLocaleName(index);
}
return locales;
}
/**
* Get number of supported locales for string collation.
*
* @return number of locales
*/
public static native int getCollationLocalesCount();
/**
* Get one of supported locales (by number).
*
* @param index index of locale to select
* @return locale
*/
public static native String getCollationLocaleName(int index);
/**
* Get index of supported locales for string collation by its name.
*
* @param locale name of locale
* @return index of locale
*/
public static native int getCollationLocaleIndex(String locale);
}
|