root / trunk / libraries / libIverUtiles / src / com / iver / utiles / StringComparator.java @ 11448
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.utiles; |
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import java.text.Collator; |
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import java.util.Comparator; |
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/**
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* Compares two chain of characters alphabetically
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*
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* @author Fernando Gonz?lez Cort?s
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* @author Pablo Piqueras Bartolom?
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*/
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public class StringComparator implements Comparator { |
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private boolean caseSensitive = true; |
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private LocaleRules localeRules = null; |
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/**
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* @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
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*/
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public int compare(Object o1, Object o2) { |
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String s1 = (String) o1; |
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String s2 = (String) o2; |
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// If localeRules is null -> use the default rules
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if (localeRules == null) { |
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if (caseSensitive) {
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return s1.compareTo(s2);
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} |
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else {
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return s1.compareToIgnoreCase(s2);
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} |
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} |
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else {
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if (localeRules.isUseLocaleRules()) {
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Collator collator = localeRules.getCollator();
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if (caseSensitive) {
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return collator.compare(s1, s2);
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} |
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else {
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return collator.compare(s1.toLowerCase(), s2.toLowerCase());
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} |
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} |
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else {
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if (caseSensitive) {
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return s1.compareTo(s2);
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} |
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else {
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return s1.compareToIgnoreCase(s2);
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} |
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} |
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} |
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} |
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/**
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* Returns if the comparator is sensitive to small and big letters
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*
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* @return
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*/
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public boolean isCaseSensitive() { |
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return caseSensitive;
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} |
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/**
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* Establece la sensibilidad del comparador a las mayusculas y minusculas
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*
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* @param b
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*/
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public void setCaseSensitive(boolean b) { |
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caseSensitive = b; |
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} |
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/**
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* Gets an object with the information for use the locale rules in comparation between strings. <br>
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* <ul>
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* <li>A boolean value -> if want or not use the locale rules</li>
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* <li>A reference to the locale rules</li>
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* </ul>
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*
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* @return @see LocaleRules
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*/
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public LocaleRules getLocaleRules() {
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return localeRules;
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} |
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/**
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* Sets an object with the information for use the locale rules in comparation between strings. <br>
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* <ul>
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* <li>A boolean value -> if want or not use the locale rules</li>
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* <li>A reference to the locale rules</li>
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* </ul>
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*
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* @param @see LocaleRules
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*/
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public void setLocaleRules(LocaleRules locRules) { |
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localeRules = locRules; |
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} |
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/**
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* Represents the information needed by <i>StringComparator</i> for use or not locale-sensitive String comparison-rules in the <b><i>compare</i></b> method
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*
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* @author Pablo Piqueras Bartolom?
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*/
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public class LocaleRules { |
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private boolean useLocaleRules; |
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private Collator _collator; |
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/**
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* Default constructor without parameters
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*/
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public LocaleRules() {
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useLocaleRules = false;
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_collator = null;
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} |
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/**
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* Default constructor with two parameters
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*
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* @param b Use locale rules
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* @param collator A reference to an object configurated for locale-sensitive String comparison
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*/
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public LocaleRules(boolean b, Collator collator) { |
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useLocaleRules = b; |
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_collator = collator; |
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} |
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/**
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* Gets the value of the inner attribute <i>_collator</i>
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*
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* @return Returns A reference to an object configurated for locale-sensitive String comparison
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*/
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public Collator getCollator() { |
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return _collator;
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} |
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/**
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* Sets a value to the inner attribute <i>_collator</i>
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*
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* @param collator A reference to an object configurated for locale-sensitive String comparison
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*/
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public void setCollator(Collator collator) { |
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this._collator = collator;
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} |
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/**
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* Gets the value of the inner attribute <i>useLocaleRules</i>
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*
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* @return Returns the useLocaleRules.
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*/
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public boolean isUseLocaleRules() { |
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return useLocaleRules;
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} |
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/**
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* Sets a value to the inner attribute <i>useLocaleRules</i>
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*
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* @param useLocaleRules The useLocaleRules to set.
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*/
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public void setUseLocaleRules(boolean useLocaleRules) { |
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this.useLocaleRules = useLocaleRules;
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} |
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} |
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} |