Revision 11448 trunk/libraries/libIverUtiles/src/com/iver/utiles/StringComparator.java
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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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* Comparator que compara dos cadenas alfab?ticamente
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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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boolean caseSensitive = true; |
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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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String s1 = (String) o1; |
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String s2 = (String) o2; |
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if (caseSensitive) {
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return s1.compareTo(s2); |
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} else {
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return s1.compareToIgnoreCase(s2); |
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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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* Devuelve si el comparador es sensible a las minusculas y may?sculas
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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 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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} |
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