Example usage for java.util Collections swap

Introduction

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

Prototype

private static void swap(Object[] arr, int i, int j) 

Source Link

Document

Swaps the two specified elements in the specified array.

Usage

From source file:edu.chalmers.dat255.audiobookplayer.model.Book.java

public void swapTracks(int firstIndex, int secondIndex) {
    checkTrackIndexLegal(firstIndex);//from w  w w .  ja v a2s  .  co m
    checkTrackIndexLegal(secondIndex);

    Collections.swap(tracks, firstIndex, secondIndex);
}

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From source file:com.formkiq.core.service.workflow.WorkflowEditorServiceImpl.java

/**
 * Move Step Down 1./*  w  ww.  j  av  a  2s  .com*/
 * @param flow {@link WebFlow}
 * @param fieldids String[]
 * @param minimum int
 * @param steps boolean whether using steps or printsteps
 */
private void actionStep(final WebFlow flow, final String[] fieldids, final int minimum, final boolean steps) {

    Object obj = flow.getCurrentState().getData();
    if (!(obj instanceof Workflow)) {
        return;
    }

    Workflow workflow = (Workflow) obj;

    List<String> list = steps ? workflow.getSteps() : workflow.getPrintsteps();

    for (String s : fieldids) {

        int pos = NumberUtils.toInt(s, -1);

        try {
            Collections.swap(list, pos, pos + minimum * -1);
        } catch (IndexOutOfBoundsException e) {
            // ignore..
        }
    }
}

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From source file:com.rks.musicx.ui.adapters.QueueAdapter.java

@Override
public boolean onItemMove(int fromPosition, int toPosition) {
    if (fromPosition < 0 || fromPosition >= data.size() || toPosition < 0 || toPosition >= data.size()) {
        return false;
    }/*from  ww w  .  j a  v a2  s.  co  m*/
    Collections.swap(data, fromPosition, toPosition);

    if (pos == fromPosition) {
        pos = toPosition;
    } else if (pos == toPosition) {
        pos = fromPosition;
    }
    notifyItemMoved(fromPosition, toPosition);
    return true;
}

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From source file:com.predic8.membrane.core.RuleManager.java

public synchronized void ruleUp(Rule rule) {
    int index = rules.indexOf(rule);
    if (index <= 0)
        return;/* w w  w  . j ava 2 s.c om*/
    Collections.swap(rules, index, index - 1);
    Collections.swap(ruleSources, index, index - 1);
    for (IRuleChangeListener listener : listeners) {
        listener.rulePositionsChanged();
    }
}

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From source file:liam.franco.selene.fragments.SuperSheetsFragment.java

@Subscribe(queue = "note_updated")
public void noteUpdated(NoteUpdatingEvent noteUpdatingEvent) {
    boolean pastAdd = getTabTitle().equals(MainActivity.PAST) && noteUpdatingEvent.getNote().getArchive();
    boolean futureAdd = getTabTitle().equals(MainActivity.FUTURE) && noteUpdatingEvent.getNote().getReminder();
    boolean presentAdd = getTabTitle().equals(MainActivity.PRESENT)
            && (!noteUpdatingEvent.getNote().getReminder() && !noteUpdatingEvent.getNote().getArchive());

    boolean exists = false;
    for (int i = 0; i < getAdapter().getAdapterItems().size(); i++) {
        exists = noteUpdatingEvent.getNote().getUid() == getAdapter().getAdapterItem(i).getViewHolder()
                .getNote().getUid();/*from   w ww .ja v a 2  s  .c o  m*/

        if (exists) {
            break;
        }
    }

    if (!exists) {
        if (pastAdd || futureAdd || presentAdd) {
            addNote(noteUpdatingEvent.getNote());
        }
    } else {
        if (!pastAdd && !futureAdd && !presentAdd) {
            App.BUS.unregister(
                    getAdapter().getAdapterItem(noteUpdatingEvent.getLayoutPosition()).getViewHolder());
            getAdapter().remove(noteUpdatingEvent.getLayoutPosition());
        } else {
            Collections.swap(getAdapter().getAdapterItems(), noteUpdatingEvent.getLayoutPosition(), 0);
            getAdapter().notifyAdapterItemMoved(noteUpdatingEvent.getLayoutPosition(), 0);
        }
    }

    setEmptyView();
}

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From source file:org.mars3142.android.toaster.fragment.NavigationDrawerFragment.java

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
    switch (loader.getId()) {
    case DATA_LOADER:
        mNavList = new ArrayList<ToastCard>();

        ToastCard emptyCard = new ToastCard(getActionBar().getThemedContext());
        emptyCard.appName = getString(R.string.all_data);
        mNavList.add(emptyCard);/*www  .  j  av a 2  s .c o m*/

        if (data.moveToFirst()) {
            do {
                ToastCard packageCard = new ToastCard(getActionBar().getThemedContext());
                packageCard.packageName = data.getString(data.getColumnIndex(ToasterTable.PACKAGE));
                if (packageCard.packageName != null) {
                    packageCard.loadData();
                    mNavList.add(packageCard);
                }
            } while (data.moveToNext());
        }
        Collections.sort(mNavList, new ToastCardComparator());
        Collections.swap(mNavList, mNavList.indexOf(emptyCard), 0);

        mDrawerListView.setAdapter(new ToastArrayAdapter(getActionBar().getThemedContext(), mNavList));
        mDrawerListView.setItemChecked(mCurrentSelectedPosition, true);
        break;

    default:
        throw new IllegalArgumentException();
    }
}

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From source file:com.predic8.membrane.core.RuleManager.java

public synchronized void ruleDown(Rule rule) {
    int index = rules.indexOf(rule);
    if (index < 0 || index == (rules.size() - 1))
        return;//from www.  j a  v  a2 s  .c  o  m
    Collections.swap(rules, index, index + 1);
    Collections.swap(ruleSources, index, index + 1);
    for (IRuleChangeListener listener : listeners) {
        listener.rulePositionsChanged();
    }
}

---

From source file:org.openmrs.web.controller.person.PersonAttributeTypeListController.java

/**
 * Moves the selected types up one in the order
 * //  w  w  w .  j  av  a  2s .  c  o  m
 * @param personAttributeTypeId list of ids to move up
 * @param httpSession the current session
 * @should move selected ids up one in the list
 * @should not fail if given first id
 * @should not fail if not given any ids
 */
@RequestMapping(method = RequestMethod.POST, params = "action=moveup")
public String moveUp(Integer[] personAttributeTypeId, HttpSession httpSession) {
    if (personAttributeTypeId == null) {
        httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "PersonAttributeType.select");
    } else {
        PersonService ps = Context.getPersonService();

        List<PersonAttributeType> attributes = ps.getAllPersonAttributeTypes();

        Set<PersonAttributeType> attributesToSave = new HashSet<PersonAttributeType>();

        List<Integer> selectedIds = Arrays.asList(personAttributeTypeId);

        // assumes attributes are returned in sortWeight order

        for (int i = 1; i < attributes.size(); i++) {
            PersonAttributeType current = attributes.get(i);
            if (selectedIds.contains(current.getPersonAttributeTypeId())) {
                PersonAttributeType above = attributes.get(i - 1);

                // swap current and the attribute above it
                double temp = current.getSortWeight();
                current.setSortWeight(above.getSortWeight());
                above.setSortWeight(temp);
                Collections.swap(attributes, i, i - 1); // move the actual elements in the list as well

                attributesToSave.add(current);
                attributesToSave.add(above);
            }
        }

        // now save things
        for (PersonAttributeType pat : attributesToSave) {
            ps.savePersonAttributeType(pat);
        }
    }

    return "redirect:/admin/person/personAttributeType.list";
}

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From source file:edu.utexas.cs.tactex.utils.BrokerUtils.java

/**
 * @param list//from   w  w w . j  a  v  a2  s.  com
 * @param value
 */
public static <T> void insertToSortedArrayList(ArrayList<T> list, T value) {
    list.add(value);
    @SuppressWarnings("unchecked")
    Comparable<T> cmp = (Comparable<T>) value;
    for (int i = list.size() - 1; i > 0 && cmp.compareTo(list.get(i - 1)) < 0; i--)
        Collections.swap(list, i, i - 1);
}

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From source file:io.syng.adapter.ProfileDrawerAdapter.java

@Override
public boolean onItemMove(int fromPosition, int toPosition) {
    int realFromPosition = fromPosition - 1;//-1 because of the header
    int realToPosition = toPosition - 1;

    Collections.swap(mDataSet, realFromPosition, realToPosition);
    notifyItemMoved(fromPosition, toPosition);
    ProfileManager.reorderProfiles(realFromPosition, realToPosition);
    return true;/*from  w w w .jav a  2 s .c o m*/
}

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