Examples of java.text.Collator

java.text.Collator
are two strings in the default locale Collator myCollator = Collator.getInstance(); if( myCollator.compare("abc", "ABC") < 0 ) System.out.println("abc is less than ABC"); else System.out.println("abc is greater than or equal to ABC");
You can set a Collator's strength property to determine the level of difference considered significant in comparisons. Four strengths are provided: PRIMARY, SECONDARY, TERTIARY, and IDENTICAL. The exact assignment of strengths to language features is locale dependant. For example, in Czech, "e" and "f" are considered primary differences, while "e" and "ě" are secondary differences, "e" and "E" are tertiary differences and "e" and "e" are identical. The following shows how both case and accents could be ignored for US English.
```
 //Get the Collator for US English and set its strength to PRIMARY Collator usCollator = Collator.getInstance(Locale.US); usCollator.setStrength(Collator.PRIMARY); if( usCollator.compare("abc", "ABC") == 0 ) { System.out.println("Strings are equivalent"); } 
```
For comparing Strings exactly once, the compare method provides the best performance. When sorting a list of Strings however, it is generally necessary to compare each String multiple times. In this case, CollationKeys provide better performance. The CollationKey class converts a String to a series of bits that can be compared bitwise against other CollationKeys. A CollationKey is created by a Collator object for a given String.
Note: CollationKeys from different Collators can not be compared. See the class description for {@link CollationKey}for an example using CollationKeys. @see RuleBasedCollator @see CollationKey @see CollationElementIterator @see Locale @version 1.46, 07/23/06 @author Helena Shih, Laura Werner, Richard Gillam

     */
    public void sortForeignKeys(final boolean caseSensitive)
    {
        if (!_foreignKeys.isEmpty())
        {
            final Collator collator = Collator.getInstance();
    
            Collections.sort(_foreignKeys, new Comparator() {
                public int compare(Object obj1, Object obj2)
                {
                    String fk1Name = ((ForeignKey)obj1).getName();
                    String fk2Name = ((ForeignKey)obj2).getName();


                    if (!caseSensitive)
                    {
                        fk1Name = (fk1Name != null ? fk1Name.toLowerCase() : null);
                        fk2Name = (fk2Name != null ? fk2Name.toLowerCase() : null);
                    }
                    return collator.compare(fk1Name, fk2Name);
                }
            });
        }
    }

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                {
                    tables.add(table);
                }
            }


            final Collator collator = Collator.getInstance();
            
            Collections.sort(tables, new Comparator() {
                public int compare(Object obj1, Object obj2)
                {
                    return collator.compare(((Table)obj1).getName().toUpperCase(), ((Table)obj2).getName().toUpperCase());
                }
            });
            return tables;
        }
        finally

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            m_sorter = new PageSorter( HumanComparator.DEFAULT_HUMAN_COMPARATOR );
        }
        else
            try
            {
                Collator collator = new RuleBasedCollator( order );
                collator.setStrength( Collator.PRIMARY );
                m_sorter = new PageSorter( new CollatorComparator( collator ) );
            }
            catch( ParseException pe )
            {
                log.info( "Failed to parse requested collator - using default ordering", pe );

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    if (twoVal == null)
    {
      returnValue = 1;
    }


    Collator c = Collator.getInstance();


    returnValue = c.compare(oneVal.toString(), twoVal.toString());


    return returnValue;
  }

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     * @return the result of the comparison
     * @see java.util.Comparator#compare(Object, Object)
     */
    public int compare( Principal o1, Principal o2 )
    {
        Collator collator = Collator.getInstance();
        return collator.compare( o1.getName(), o2.getName() );
    }

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  }


    private Collator retrieveCollator() {
        Status status = (Status) getStatus();
        Collator collator;
        if (status.contentLanguage != null && status.contentLanguage != ResultSetTagStatus.MULTILANGUAGE_RESULT) {
            collator = Collator.getInstance(getCore().languageCodeToLocale(status.contentLanguage));
        }
        else {
            collator = Collator.getInstance(getTMLContext().getPreferredLanguageLocale());

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     *         prevent them from being compared by this Comparator.
     */
    @SuppressWarnings("unchecked")
  public int compare(Object o1, Object o2) {
        int retval = 0;
        Collator collator = Collator.getInstance(this.locale);


        for (PropertyExpression expression : this.expressions) {
            PropertyExpressionEvaluation e1 = new PropertyExpressionEvaluation(expression, o1);
            PropertyExpressionEvaluation e2 = new PropertyExpressionEvaluation(expression, o2);


            Object prop1 = e1.getValue();
            Object prop2 = e2.getValue();


            if (prop1 == null && prop2 == null) {
                retval = 0;
            }
            else if (prop1 == null) {
                retval = 1;
            }
            else if (prop2 == null) {
                retval = -1;
            }
            else if ( !(prop1 instanceof String) && prop1 instanceof Comparable) {
                retval = ((Comparable) prop1).compareTo(prop2);
            }
            else {
                String string1 = prop1.toString();
                String string2 = prop2.toString();
                retval = collator.compare(string1, string2);
            }


            if (retval != 0) break;
        }

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      {
        locale = _getLocale(reqCtx, facesContext);
      }
    }


    Collator collator = locale == null ? Collator.getInstance() : Collator.getInstance(locale);
    if (collatorDecomposition != null)
    {
      collator.setDecomposition(collatorDecomposition.getIntValue());
    }


    if (collatorStrength != null)
    {
      collator.setStrength(collatorStrength.getIntValue());
    }


    setComparator(propertyName, collator);
  }

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        return null;
    }


    public int compare( String content, String facetValue ){
        Locale    loc       = Locale.getDefault();
        Collator  collator  = Collator.getInstance( loc );
        return collator.compare( content, facetValue );
    }

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      }


   }
   public int compare( String content, String facetValue ){
      Locale    loc       = Locale.getDefault();
      Collator  collator  = Collator.getInstance( loc );
      return collator.compare( content, facetValue );
   }

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