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    • com.extjs.gxt.ui.client.util.DefaultComparator Maven / Gradle / Ivy

    There is a newer version: 2.3.1-gwt22
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    /*
 * Sencha GXT 2.3.1 - Sencha for GWT
 * Copyright(c) 2007-2013, Sencha, Inc.
 * [email protected]
 * 
 * http://www.sencha.com/products/gxt/license/
 */
 package com.extjs.gxt.ui.client.util;

import java.util.Comparator;

/**
 * Default Comparator implementation.
 */
public class DefaultComparator implements Comparator {

  public final static DefaultComparator INSTANCE = new DefaultComparator();

  @SuppressWarnings({"unchecked", "rawtypes"})
  public int compare(Object o1, Object o2) {
    if (o1 == null || o2 == null) {
      if (o1 == null && o2 == null) {
        return 0;
      } else {
        return (o1 == null) ? -1 : 1;
      }
    }
    if (o1 instanceof Comparable) {
      return ((Comparable) o1).compareTo(o2);
    }
    return compareStrings(o1.toString(), o2.toString());

  }

  protected int compareStrings(String s1, String s2) {
    return s1.toLowerCase().compareTo(s2.toLowerCase());
  }

}
    
    
    
    

    




    
    
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