Ejemplo n.º 1
0
  /**
   * Gets the model indexes for the given rows.
   *
   * @param <Q> the type of the rows.
   * @param tableModel the table model.
   * @param entities the entities to be queried.
   * @return the model indexes.
   */
  public static <Q> List<Integer> getModelIndexes(GlazedTableModel tableModel, List<Q> entities) {

    Assert.notNull(tableModel, TableUtils.TABLE_MODEL);
    Assert.notNull(entities, "entities");

    final EventList<Q> eventList = TableUtils.getSource(tableModel);
    final List<Integer> modelIndexes = new ArrayList<Integer>(entities.size());

    for (int i = 0; i < entities.size(); ++i) {
      modelIndexes.add(eventList.indexOf(entities.get(i)));
    }

    return modelIndexes;
  }
Ejemplo n.º 2
0
  /**
   * Gets the current selection.
   *
   * <p>Ensures entities are returned in the same order as <code>modelIndexes</code>.
   *
   * <p><em>This method exists for performance reasons when <code>modelIndexes</code> are already
   * known</em>.
   *
   * @param <Q> the type of the rows.
   * @param table the table.
   * @param tableModel the table model.
   * @param modelIndexes the model indexes.
   * @return the selected entities.
   */
  public static <Q> List<Q> getSelection(
      JTable table, GlazedTableModel tableModel, List<Integer> modelIndexes) {

    Assert.notNull(table, TableUtils.TABLE);
    Assert.notNull(tableModel, TableUtils.TABLE_MODEL);

    final EventList<Q> eventList = TableUtils.getSource(tableModel);
    final List<Q> selectedEntities = new ArrayList<Q>(modelIndexes.size());

    for (Integer modelIndex : modelIndexes) {
      selectedEntities.add(eventList.get(modelIndex));
    }

    return selectedEntities;
  }
Ejemplo n.º 3
0
  /**
   * Show the given entities in a table.
   *
   * <p>When dealing with <code>EventList</code> performance is important. This method ensures table
   * model events are launched just once at the end.
   *
   * @param <Q> the type of the rows.
   * @param tableModel the table model.
   * @param entities the entities to be shown.
   * @param attach whether to attach new entities to currents. If <code>false</code> currents are
   *     replaced.
   * @return <code>true</code> if success and <code>false</code> in other case (i.e.:user rejected
   *     change).
   */
  @SuppressWarnings("unchecked")
  public static <Q> Boolean showEntities(
      GlazedTableModel tableModel, final List<Q> entities, final Boolean attach) {

    Assert.notNull(tableModel, TableUtils.TABLE_MODEL);
    Assert.notNull(entities, "entities");
    Assert.notNull(attach, "attach");

    final EventList<Q> eventList = TableUtils.getSource(tableModel);

    // Proceed only if ...
    final Boolean proceed;
    if (attach) {
      // ... must attach and entities are not contained in eventList or...
      proceed = !CollectionUtils.isSubCollection(entities, eventList);
    } else {
      // ... must replace and entities are not equals to eventList
      proceed = !CollectionUtils.isEqualCollection(entities, eventList);
    }

    if (proceed) {

      if (TableUtils.LOGGER.isDebugEnabled()) {
        TableUtils.LOGGER.debug("About to show entities " + entities);
      }

      // Avoid notifying in every single change, instead do it at the end
      final TableModelListener[] listeners = tableModel.getTableModelListeners();
      for (final TableModelListener listener : listeners) {
        tableModel.removeTableModelListener(listener);
      }

      SwingUtils.runInEventDispatcherThread(
          new Runnable() {

            @Override
            public void run() {

              // Update the contents of the event list
              eventList.getReadWriteLock().writeLock().lock();
              try {
                if (!attach) {
                  eventList.clear();
                }
                eventList.addAll(eventList.size(), CollectionUtils.subtract(entities, eventList));
              } finally {
                // Since Swing is multithread we need to lock before and unlock later
                // http://sites.google.com/site/glazedlists/documentation/faq
                eventList.getReadWriteLock().writeLock().unlock();
              }
            }
          });

      // Enable notifying: install listeners again
      for (final TableModelListener listener : listeners) {
        tableModel.addTableModelListener(listener);
      }

      // Since listeners were uninstalled notification should be explicit
      tableModel.fireTableDataChanged();
    }

    return proceed;
  }