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JGL - The Generic Collection Library for Java
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Collate examples

Collate1 - Comparison by CollationKeys.

Collate2 - Comparison of CollationKeys.

Collate3 - Comparison using Collator objects.

Collate1 Example Code

// Copyright(c) 1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
import com.objectspace.jgl.predicates.*;
import java.text.Collator;
import java.util.Enumeration;

/**
 * Comparison by CollationKeys.
 *
 * @see com.objectspace.jgl.predicates.LessCollationKey
 * @see com.objectspace.jgl.predicates.LessEqualCollationKey
 * @see com.objectspace.jgl.predicates.GreaterCollationKey
 * @see com.objectspace.jgl.predicates.GreaterEqualCollationKey
 * @see java.text.Collator
 * @version 3.0.0
 * @author ObjectSpace, Inc.
 */

public class Collate1
  {
  public static void show( String tag, Collator collator )
    {
    // allow duplicates in set
    OrderedSet set = new OrderedSet( new LessCollationKey( collator ), true );

    // add a few entries
    set.add( "Texas" );
    set.add( "texas" );
    set.add( "Texas Fight" );

    // print the resulting container
    System.out.println( tag );
    Enumeration iterator = set.begin();
    while ( iterator.hasMoreElements() )
      System.out.println( "\t" + iterator.nextElement() );
    }

  public static void main( String args[] )
    {
    Collator collator = Collator.getInstance();
    show( "default collating", collator );

    collator.setStrength( Collator.PRIMARY );
    show( "case insensitive", collator );
    }
  }

Collate1 Example Output

default collating
texas
Texas
Texas Fight
case insensitive
Texas
texas
Texas Fight

Collate2 Example Code

// Copyright(c) 1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
import com.objectspace.jgl.predicates.*;
import java.text.Collator;
import java.text.CollationKey;
import java.util.Enumeration;

/**
 * Comparison of CollationKeys.
 *
 * @see com.objectspace.jgl.predicates.LessCollationKey
 * @see com.objectspace.jgl.predicates.LessEqualCollationKey
 * @see com.objectspace.jgl.predicates.GreaterCollationKey
 * @see com.objectspace.jgl.predicates.GreaterEqualCollationKey
 * @see java.text.Collator
 * @see java.text.CollationKey
 * @version 3.0.0
 * @author ObjectSpace, Inc.
 */

public class Collate2
  {
  public static void show( String tag, Collator collator )
    {
    // allow duplicates in set
    OrderedSet set = new OrderedSet( new LessCollationKey(), true );

    // add a few entries
    set.add( collator.getCollationKey( "Texas" ) );
    set.add( collator.getCollationKey( "texas" ) );
    set.add( collator.getCollationKey( "Texas Fight" ) );

    // print the resulting container
    System.out.println( tag );
    Enumeration iterator = set.begin();
    while ( iterator.hasMoreElements() )
      System.out.println( "\t" + ( (CollationKey)iterator.nextElement() ).getSourceString() );
    }

  public static void main( String args[] )
    {
    Collator collator = Collator.getInstance();
    show( "default collating", collator );

    collator.setStrength( Collator.PRIMARY );
    show( "case insensitive", collator );
    }
  }

Collate2 Example Output

default collating
texas
Texas
Texas Fight
case insensitive
Texas
texas
Texas Fight

Collate3 Example Code

// Copyright(c) 1997 ObjectSpace, Inc.
import com.objectspace.jgl.*;
import com.objectspace.jgl.predicates.*;
import java.text.Collator;

/**
 * Comparison using Collator objects.
 *
 * @see com.objectspace.jgl.predicates.LessCollator
 * @see com.objectspace.jgl.predicates.LessEqualCollator
 * @see com.objectspace.jgl.predicates.GreaterCollator
 * @see com.objectspace.jgl.predicates.GreaterEqualCollator
 * @see java.text.Collator
 * @version 3.0.0
 * @author ObjectSpace, Inc.
 */

public class Collate3
  {
  public static void show( String tag, BinaryPredicate predicate )
    {
    // create a set with given comparitor that allows duplicates
    OrderedSet set = new OrderedSet( predicate, true );

    // add a few entries
    set.add( "Texas" );
    set.add( "texas" );
    set.add( "Texas Fight" );

    // print the resulting container
    System.out.println( tag + "\n\t" + set );
    }

  public static void main( String args[] )
    {
    show( "old style", new LessString() );
    show( "default collating", new LessCollator() );

    Collator collator = Collator.getInstance();
    collator.setStrength( Collator.PRIMARY );
    show( "case insensitive", new LessCollator( collator ) );
    }
  }

Collate3 Example Output

old style
OrderedSet( Texas, Texas Fight, texas )
default collating
OrderedSet( texas, Texas, Texas Fight )
case insensitive
OrderedSet( Texas, texas, Texas Fight )
 
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