Examples of java.text.CollationKey

java.text.CollationKey
te an array of CollationKeys for the Strings to be sorted. Collator myCollator = Collator.getInstance(); CollationKey[] keys = new CollationKey[3]; keys[0] = myCollator.getCollationKey("Tom"); keys[1] = myCollator.getCollationKey("Dick"); keys[2] = myCollator.getCollationKey("Harry"); sort( keys );
//...
// Inside body of sort routine, compare keys this way if( keys[i].compareTo( keys[j] ) > 0 ) // swap keys[i] and keys[j]
//...
// Finally, when we've returned from sort. System.out.println( keys[0].getSourceString() ); System.out.println( keys[1].getSourceString() ); System.out.println( keys[2].getSourceString() ); @see Collator @see RuleBasedCollator @version 1.21, 11/17/05 @author Helena Shih

      String Simple = "< a< b< c< d";
      rbc = new RuleBasedCollator(Simple);
    } catch (ParseException e) {
      fail("Assert 0: Unexpected format exception " + e);
    }
    CollationKey ck = rbc.getCollationKey(source);
    assertNull("Assert 1: getCollationKey (null) does not return null", ck);
  }

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    public void testGetCollationKey() {
        RuleBasedCollator coll = (RuleBasedCollator) Collator
                .getInstance(Locale.GERMAN);
        String source = "abc";
        CollationKey key1 = coll.getCollationKey(source);
        assertEquals(source, key1.getSourceString());
        String source2 = "abb";
        CollationKey key2 = coll.getCollationKey(source2);
        assertEquals(source2, key2.getSourceString());
        assertTrue(key1.compareTo(key2) > 0);
        assertTrue(coll.compare(source, source2) > 0);


    }

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    // Test CollationKey
    public void testCollationKey() {
        Collator coll = Collator.getInstance(Locale.US);
        String text = "abc";
        CollationKey key = coll.getCollationKey(text);
        key.hashCode();


        CollationKey key2 = coll.getCollationKey("abc");


        assertEquals(0, key.compareTo(key2));
    }

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    int result;




    if (comparator instanceof Collator) {
      CollationKey collationKey1
          = ((Collator) comparator).getCollationKey(obj1.toString());
      CollationKey collationKey2
          = ((Collator) comparator).getCollationKey(obj2.toString());
      result = collationKey1.compareTo(collationKey2);


    } else if (comparator != null) {
      result = comparator.compare(obj1, obj2);

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            a = a.toUpperCase();
            b = b.toUpperCase();
        }
        int comp;
        if (collationKeys != null) {
            CollationKey aKey = getKey(a);
            CollationKey bKey = getKey(b);
            comp = aKey.compareTo(bKey);
        } else {
            comp = collator.compare(a, b);
        }
        return comp;

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        return compareString(a.substring(ai, ai + 1), b.substring(bi, bi + 1), ignoreCase) == 0;
    }


    private CollationKey getKey(String a) {
        synchronized (collationKeys) {
            CollationKey key = collationKeys.get(a);
            if (key == null) {
                key = collator.getCollationKey(a);
                collationKeys.put(a, key);
            }
            return key;

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            a = a.toUpperCase();
            b = b.toUpperCase();
        }
        int comp;
        if (collationKeys != null) {
            CollationKey aKey = getKey(a);
            CollationKey bKey = getKey(b);
            comp = aKey.compareTo(bKey);
        } else {
            comp = collator.compare(a, b);
        }
        return comp;

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        return compareString(a.substring(ai, ai + 1), b.substring(bi, bi + 1), ignoreCase) == 0;
    }


    private CollationKey getKey(String a) {
        synchronized (collationKeys) {
            CollationKey key = collationKeys.get(a);
            if (key == null) {
                key = collator.getCollationKey(a);
                collationKeys.put(a, key);
            }
            return key;

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                        : (diff > 0.0) ? (k.m_descending ? -1 : 1) : 0);
      }
    }  // end treat as numbers 
    else
    {
      CollationKey n1String, n2String;


      if (kIndex == 0)
      {
        n1String = (CollationKey) n1.m_key1Value;
        n2String = (CollationKey) n2.m_key1Value;
      }
      else if (kIndex == 1)
      {
        n1String = (CollationKey) n1.m_key2Value;
        n2String = (CollationKey) n2.m_key2Value;
      }


      /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
        String n1String = (String)n1.m_keyValue[kIndex];
        String n2String = (String)n2.m_keyValue[kIndex];
      }*/
      else
      {


        // Get values dynamically
        XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node,
                                           k.m_namespaceContext);
        XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node,
                                           k.m_namespaceContext);


        n1String = k.m_col.getCollationKey(r1.str());
        n2String = k.m_col.getCollationKey(r2.str());
      }


      // Use collation keys for faster compare, but note that whitespaces 
      // etc... are treated differently from if we were comparing Strings.
      result = n1String.compareTo(n2String);


      //Process caseOrder parameter
      if (k.m_caseOrderUpper)
      {
        String tempN1 = n1String.getSourceString().toLowerCase();
        String tempN2 = n2String.getSourceString().toLowerCase();


        if (tempN1.equals(tempN2))
        {

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                        : (diff > 0.0) ? (k.m_descending ? -1 : 1) : 0);
      }
    }  // end treat as numbers 
    else
    {
      CollationKey n1String, n2String;


      if (kIndex == 0)
      {
        n1String = (CollationKey) n1.m_key1Value;
        n2String = (CollationKey) n2.m_key1Value;
      }
      else if (kIndex == 1)
      {
        n1String = (CollationKey) n1.m_key2Value;
        n2String = (CollationKey) n2.m_key2Value;
      }


      /* Leave this in case we decide to use an array later
      if (kIndex < maxkey)
      {
        String n1String = (String)n1.m_keyValue[kIndex];
        String n2String = (String)n2.m_keyValue[kIndex];
      }*/
      else
      {


        // Get values dynamically
        XObject r1 = k.m_selectPat.execute(m_execContext, n1.m_node,
                                           k.m_namespaceContext);
        XObject r2 = k.m_selectPat.execute(m_execContext, n2.m_node,
                                           k.m_namespaceContext);


        n1String = k.m_col.getCollationKey(r1.str());
        n2String = k.m_col.getCollationKey(r2.str());
      }


      // Use collation keys for faster compare, but note that whitespaces 
      // etc... are treated differently from if we were comparing Strings.
      result = n1String.compareTo(n2String);


      //Process caseOrder parameter
      if (k.m_caseOrderUpper)
      {
        String tempN1 = n1String.getSourceString().toLowerCase();
        String tempN2 = n2String.getSourceString().toLowerCase();


        if (tempN1.equals(tempN2))
        {

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