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GATE - general achitecture for text engineering - is open source software capable of solving almost any text processing problem. This artifact enables you to embed the core GATE Embedded with its essential dependencies. You will able to use the GATE Embedded API and load and store GATE XML documents. This artifact is the perfect dependency for CREOLE plugins or for applications that need to customize the GATE dependencies due to confict with their own dependencies or for lower footprint.

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/*
 *  Copyright (c) 1995-2012, The University of Sheffield. See the file
 *  COPYRIGHT.txt in the software or at http://gate.ac.uk/gate/COPYRIGHT.txt
 *
 *  This file is part of GATE (see http://gate.ac.uk/), and is free
 *  software, licenced under the GNU Library General Public License,
 *  Version 2, June 1991 (in the distribution as file licence.html,
 *  and also available at http://gate.ac.uk/gate/licence.html).
 *
 *  ObjectComparator.java
 *
 *  Valentin Tablan, 06-Dec-2004
 *
 *  $Id: ObjectComparator.java 19660 2016-10-10 07:57:55Z markagreenwood $
 */

package gate.util;

import java.io.Serializable;
import java.util.Comparator;

/**
 * A Comparator implementation for Object values.
 * If the values provided are not comparable, then they are converted to String 
 * and the String values are compared.
 * This utility is useful for GUI components that need to sort their contents.
 */
public class ObjectComparator implements Comparator, Serializable {

  private static final long serialVersionUID = 8692612164609360477L;

  /**
   * Compares two objects.
   */
  @SuppressWarnings({"unchecked", "rawtypes"})
  @Override
  public int compare(Object o1, Object o2){
    // If both values are null, return 0.
    if (o1 == null && o2 == null) {
      return 0;
    } else if (o1 == null) { // Define null less than everything.
      return -1;
    } else if (o2 == null) {
      return 1;
    }
    int result;
    if(o1 instanceof Comparable){
      try {
        result = ((Comparable)o1).compareTo(o2);
      } catch(ClassCastException cce) {
        String s1 = o1.toString();
        String s2 = o2.toString();
        result = s1.compareTo(s2);
      }
    } else {
      String s1 = o1.toString();
      String s2 = o2.toString();
      result = s1.compareTo(s2);
    }
    
    return result;
  }
}
    

    

    

            

    

            



    
    






    
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