Examples of org.apache.commons.beanutils.BeanComparator

org.apache.commons.beanutils.BeanComparator

This comparator compares two beans by the specified bean property. It is also possible to compare beans based on nested, indexed, combined, mapped bean properties. Please see the {@link PropertyUtilsBean} documentation for all property name possibilities.
Note: The BeanComparator passes the values of the specified bean property to a ComparableComparator, if no comparator is specified in the constructor. If you are comparing two beans based on a property that could contain "null" values, a suitable Comparator or ComparatorChain should be supplied in the constructor.
@author Eric Pugh @author Tim O'Brien

                // replace jsp.version property as well
                project.getOriginalModel().getProperties().setProperty("jsp.version", "2.1");
            }
        }


        Collections.sort(newDependencies, new BeanComparator("groupId"));


        project.getOriginalModel().setDependencies(newDependencies);


        Properties currentProperties = project.getOriginalModel().getProperties();

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     * @param list the java.util.List to sort
     * @return ordered list
     */
    @SuppressWarnings("unchecked")
    protected List sort(List list) {
        Comparator comparator = new BeanComparator(sortColumn, new NullComparator(nullsAreHigh));
        if (!ascending) {
            comparator = new ReverseComparator(comparator);
        }
        Collections.sort(list, comparator);
        return list;

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     * @param list the java.util.List to sort
     * @return ordered list
     */
    @SuppressWarnings("unchecked")
    protected List sort(List list) {
        Comparator comparator = new BeanComparator(sortColumn, new NullComparator(nullsAreHigh));
        if (!ascending) {
            comparator = new ReverseComparator(comparator);
        }
        Collections.sort(list, comparator);
        return list;

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    List<T> values = this.getValues();
    
    // perhaps apply a sort...
    if( sortProperty != null ) {
      Comparator<T> comparator = new BeanComparator( sortProperty );
      if( !sortAsc ) {
        comparator = Collections.reverseOrder( comparator );
      }
      Collections.sort( values, comparator );
    }

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  public OrderByComparator<T> orderBy(final String property) {
    return orderBy(property, false);
  }
  
  public OrderByComparator<T> orderBy(final String property, final boolean descending) {
    comparatorChain.addComparator(new BeanComparator(property), descending);
    return this;
  }

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     *            the java.util.List to sort
     * @return ordered list
     */
    @SuppressWarnings("unchecked")
    protected List sort(final List list) {
        Comparator comparator = new BeanComparator(this.sortColumn,
                new NullComparator(this.nullsAreHigh));
        if (!this.ascending) {
            comparator = new ReverseComparator(comparator);
        }
        Collections.sort(list, comparator);

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                // replace jsp.version property as well
                project.getOriginalModel().getProperties().setProperty("jsp.version", "2.1");
            }
        }


        Collections.sort(newDependencies, new BeanComparator("groupId"));


        project.getOriginalModel().setDependencies(newDependencies);


        Properties currentProperties = project.getOriginalModel().getProperties();

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         * @return
         * @throws ECARException
         */
        public List ordenaList(List colecao, String campo) throws ECARException{
       Collection medias = colecao;
       BeanComparator ordenaMedia = new BeanComparator(campo,   
           new Comparator() {  
             public int compare(Object o1, Object o2) {              
               return ((Comparable)o2).compareTo((Comparable)o1);  
             }  
           }

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        * @return
        * @throws ECARException
        */
       public List ordenaListInvert(List colecao, String campo) throws ECARException{
       Collection medias = colecao;
       BeanComparator ordenaMedia = new BeanComparator(campo,   
           new Comparator() {  
             public int compare(Object o1, Object o2) {              
               return ((Comparable)o2).compareTo((Comparable)o1)*-1;  
             }  
           }

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            models = systemNotificationService.getAllForTypes(true, types);
        } else {
            models = systemNotificationService.getAllModels(true);
        }


        Comparator<SystemNotificationModel> notificationTypeComparator = new BeanComparator("notificationType", new SystemNotificationTypeComparator());
        Comparator<SystemNotificationModel> notificationSeverityComparator = new BeanComparator("notificationSeverity", new SystemNotificationSeverityComparator());


        ComparatorChain chain = new ComparatorChain();
        chain.addComparator(notificationTypeComparator);
        chain.addComparator(notificationSeverityComparator);

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