Example usage for java.util Collections reverseOrder

Introduction

In this page you can find the example usage for java.util Collections reverseOrder.

Prototype

@SuppressWarnings("unchecked")
public static <T> Comparator<T> reverseOrder(Comparator<T> cmp)

Source Link

Document

Returns a comparator that imposes the reverse ordering of the specified comparator.

Usage

From source file:Main.java

public static void main(String args[]) {
    // create linked list object        
    List<Integer> list = new LinkedList<Integer>();

    // populate the list 
    list.add(-2);/*from w w w . j a  v  a2  s . c  o  m*/
    list.add(2);
    list.add(-12);
    list.add(8);

    // create comparator for reverse order
    Comparator cmp = Collections.reverseOrder(Collections.reverseOrder());

    // sort the list
    Collections.sort(list, cmp);

    System.out.println(list);

}

From source file:Main.java

/**
 * Construct a comparator that use the reverse order than the given comparator.
 *
 * @param comparator The comparator to reverse.
 * @param <T>        The type of objects.
 *
 * @return A reverse comparator.//from   w  w  w  .jav  a  2 s.  c  om
 */
public static <T> Comparator<T> reverseComparator(Comparator<T> comparator) {
    return Collections.reverseOrder(comparator);
}

From source file:com.xebia.devradar.Timeline.java

public void update(Collection<Event> workspaceEvents) {

    List<Event> workspaceSortedEvents = new ArrayList<Event>(workspaceEvents);
    Collections.sort(workspaceSortedEvents, Collections.reverseOrder(new Comparator<Event>() {
        @Override//w  ww . ja  v  a2  s.c om
        public int compare(Event o1, Event o2) {
            return new CompareToBuilder().append(o1.timestamp, o2.timestamp).toComparison();
        }
    }));

    if (workspaceSortedEvents.size() < MAX_SIZE) {
        this.events = workspaceSortedEvents;
    } else {
        this.events = workspaceSortedEvents.subList(0, MAX_SIZE);
    }
}

From source file:persistence.git.document.RevCommitRepository.java

Optional<RevCommit> getLastRevCommit(final Git git) throws SourceControlUnspecifiedException {
    Optional<RevCommit> lastCommit;
    try {/*from  w  ww .j  ava  2s. c om*/
        lastCommit = Lists.newArrayList(git.log().call()).stream().sorted(Collections.reverseOrder(
                (RevCommit u1, RevCommit u2) -> Integer.compare(u1.getCommitTime(), u2.getCommitTime())))
                .findFirst();
    } catch (GitAPIException e) {
        throw new SourceControlUnspecifiedException(e);
    }

    return lastCommit;
}

From source file:org.lucidj.launcher.Launcher.java

private static String find_apache_karaf(String runtime_dir) {
    File[] file_array = new File(runtime_dir + "/Apache-Karaf").listFiles();

    if (file_array == null) {
        return (null);
    }/*  w  w  w . j  a  v  a2s  .  com*/

    // Not yet. Lets search inside runtime dir
    List<File> file_list = Arrays.asList(file_array);

    Collections.sort(file_list, Collections.reverseOrder(new AlphanumComparator()));

    for (File file : file_list) {
        if (file.isDirectory()) {
            // Embedded jdk_home
            return (file.getPath());
        }
    }

    return (null);
}

From source file:Person.java

public void order(boolean asc) {
    Comparator<Person> comp = asc ? new ComparePerson() : Collections.reverseOrder(new ComparePerson());
    Collections.sort(this.listPersons, comp);
}

From source file:org.openmrs.module.uiframeworkpatientsummarysupport.fragment.controller.PatientProblemsFragmentController.java

public void controller(FragmentModel model, @FragmentParam(value = "patientId") Patient patient) {
    //TODO should be able to use problem added and problem resolved GP
    //but for demo purposes we are using the active list service
    List<ActiveListItem> problems = Context.getActiveListService().getActiveListItems(patient,
            Problem.ACTIVE_LIST_TYPE);

    //sort the problems by date started descending   
    Collections.sort(problems, Collections.reverseOrder(new ActiveListItemByStartDateComparator()));
    model.addAttribute("problems", problems);
}

From source file:org.molasdin.wbase.collections.list.ExtendedListDecorator.java

@Override
public void sort(Order order) {
    if (Order.ASC.equals(order)) {
        Collections.sort(decorated(), comparator);
    } else {//from ww w  .  j  a va2  s. c  om
        Collections.sort(decorated(), Collections.reverseOrder(comparator));
    }
}

From source file:org.sventon.model.DirEntrySorter.java

/**
 * Sorts given list./* ww  w. ja va2s .c  o  m*/
 *
 * @param entries Entries to sort.
 */
public void sort(final List<DirEntry> entries) {
    final Comparator<DirEntry> comparator;
    if (sortMode == SortMode.DESC) {
        comparator = Collections.reverseOrder(new DirEntryComparator(sortType, true));
    } else {
        comparator = new DirEntryComparator(sortType, true);
    }
    Collections.sort(entries, comparator);
}

From source file:org.sventon.util.RepositoryEntrySorter.java

/**
 * Sorts given list./*from  w w w .  j a v a 2  s . c o m*/
 *
 * @param entries Entries to sort.
 */
public void sort(final List<RepositoryEntry> entries) {
    final Comparator<RepositoryEntry> comparator;
    if (sortMode == SortMode.DESC) {
        comparator = Collections.reverseOrder(new RepositoryEntryComparator(sortType, true));
    } else {
        comparator = new RepositoryEntryComparator(sortType, true);
    }
    Collections.sort(entries, comparator);
}