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:com.nextep.datadesigner.dbgm.model.IKeyConstraint.java

public void up(IBasicColumn c) {
    int index = colRef.indexOf(c.getReference());
    if (index > 0) {
        final IBasicColumn swappedCol = getColumns().get(index - 1);
        Collections.swap(colRef, index, index - 1);
        notifyListeners(ChangeEvent.MODEL_CHANGED, c);
        c.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
        swappedCol.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
    }//from   w w w .  j av a2  s.  c o m
}

---

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

@Override
public boolean onItemMove(int fromPosition, int toPosition) {
    Collections.swap(mDataSet, fromPosition, toPosition);
    notifyItemMoved(fromPosition, toPosition);
    ProfileManager.reorderDAppsInProfile(ProfileManager.getCurrentProfile(), fromPosition, toPosition);
    return true;//w w  w  .j  av a  2 s  .  c o m
}

---

From source file:org.nuxeo.ecm.webapp.search.SearchColumnsBean.java

private void swapResultColumns(String fieldRef1, String fieldRef2) throws ClientException {
    if (fieldRef1 == null || fieldRef2 == null) {
        throw new IllegalArgumentException("null arguments not allowed");
    }/*from  w  w  w.  j ava2 s  . c o  m*/

    int beginIndex = "fieldRef:".length();
    String ref1 = fieldRef1.substring(beginIndex);
    String ref2 = fieldRef2.substring(beginIndex);
    int index = 0;
    int pos1 = -1;
    int pos2 = -1;
    for (FieldWidget field : resultColumns) {
        if (field.getFullName().equals(ref1)) {
            pos1 = index;
        }
        if (field.getFullName().equals(ref2)) {
            pos2 = index;
        }
        index++;
    }
    if (pos1 == -1 || pos2 == -1) {
        throw new ClientException("field not found");
    }
    Collections.swap(resultColumns, pos1, pos2);
}

---

From source file:edu.byu.nlp.util.Collections3.java

public static <E> void shuffle(List<E> arr, RandomGenerator rnd) {
    for (int i = arr.size() - 1; i > 0; i--) {
        Collections.swap(arr, i, rnd.nextInt(i + 1));
    }// w  ww  .  j  a  v  a  2 s . c  om
}

---

From source file:com.nextep.datadesigner.dbgm.model.IKeyConstraint.java

public void down(IBasicColumn c) {
    int index = colRef.indexOf(c.getReference());
    if (index < colRef.size() - 1) {
        final IBasicColumn swappedCol = getColumns().get(index + 1);
        Collections.swap(colRef, index, index + 1);
        notifyListeners(ChangeEvent.MODEL_CHANGED, c);
        c.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
        swappedCol.notifyListeners(ChangeEvent.MODEL_CHANGED, null);
    }//from  ww  w.j  a  va2 s.  c o  m
}

---

From source file:org.betaconceptframework.astroboa.console.jsf.edit.ComplexCmsPropertyParentWrapper.java

private void swapChildPropertyPositions(String childPropertyName, Integer fromIndex, Integer toIndex) {

    if (CollectionUtils.isEmpty(childComplexCmsPropertyWrappers)) {
        logger.error("List of child properties is empty.");
        JSFUtilities.addMessage(null, "object.edit.swapPropertyValuePositions.failed", null,
                FacesMessage.SEVERITY_WARN);
        return;/*from w w  w.  j ava 2 s  .  com*/
    }

    if (cmsProperty.swapChildPropertyValues(childPropertyName, fromIndex, toIndex)) {

        ComplexCmsPropertyWrapper fromChildPropertyWrapper = childComplexCmsPropertyWrappers.get(fromIndex);
        ComplexCmsPropertyWrapper toChildPropertyWrapper = childComplexCmsPropertyWrappers.get(toIndex);

        fromChildPropertyWrapper.resetCmsPropertyIndex();
        toChildPropertyWrapper.resetCmsPropertyIndex();

        Collections.swap(childComplexCmsPropertyWrappers, fromIndex, toIndex);
    } else {
        JSFUtilities.addMessage(null, "object.edit.swapPropertyValuePositions.failed", null,
                FacesMessage.SEVERITY_WARN);
    }
}

---

From source file:net.sourceforge.subsonic.domain.Playlist.java

/**
 * Moves the song at the given index one step up.
 *
 * @param index The playlist index.//w  w w  .  j a v  a  2s. c  o  m
 */
public synchronized void moveUp(int index) {
    makeBackup();
    if (index <= 0 || index >= size()) {
        return;
    }
    Collections.swap(files, index, index - 1);

    if (this.index == index) {
        this.index--;
    } else if (this.index == index - 1) {
        this.index++;
    }
}

---

From source file:net.sourceforge.subsonic.domain.Playlist.java

/**
 * Moves the song at the given index one step down.
 *
 * @param index The playlist index./*from   w ww.  java2s. c  o  m*/
 */
public synchronized void moveDown(int index) {
    makeBackup();
    if (index < 0 || index >= size() - 1) {
        return;
    }
    Collections.swap(files, index, index + 1);

    if (this.index == index) {
        this.index++;
    } else if (this.index == index + 1) {
        this.index--;
    }
}

---

From source file:org.betaconceptframework.astroboa.model.impl.SimpleCmsPropertyImpl.java

@Override
public boolean swapValues(int from, int to) {

    if (values == null) {
        return false;
    }//from  w ww  .  j av a 2 s.  c  o m

    if (from == to || from < 0 || to < 0) {
        return false;
    }

    try {
        Collections.swap(values, from, to);
        resetPaths();
        return true;
    } catch (Exception e) {
        //Ignore exception
        return false;
    }
}

---

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

/**
 * Moves the selected types down in the order
 * /*from  ww  w . j  av  a  2  s  .c o m*/
 * @param personAttributeTypeId list of ids to move down
 * @param httpSession the current session
 * @should move selected ids down in the list
 * @should not fail if given last id
 * @should not fail if not given any ids
 */
@RequestMapping(method = RequestMethod.POST, params = "action=movedown")
public String moveDown(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();

        // assumes attributes are returned in sortWeight order

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

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

        for (int i = attributes.size() - 2; i >= 0; i--) {
            PersonAttributeType current = attributes.get(i);
            if (selectedIds.contains(current.getPersonAttributeTypeId())) {
                PersonAttributeType below = attributes.get(i + 1);

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

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

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

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

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• »