Examples of com.vaadin.data.Container$PropertySetChangeNotifier

com.vaadin.data.Container

The interface for adding and removing PropertySetChangeEvent listeners. By implementing this interface a class explicitly announces that it will generate a PropertySetChangeEvent when the set of property IDs supported by the container is modified.

A property set change means the addition, removal or other structural changes to the properties of a container. Changes concerning the set of items in the container and their property values are not property set changes.

Note that the general Java convention is not to explicitly declare that a class generates events, but to directly define the addListener and removeListener methods. That way the caller of these methods has no real way of finding out if the class really will send the events, or if it just defines the methods to be able to implement an interface.

     */


    @Override
    public void sort(Object[] propertyId, boolean[] ascending)
            throws UnsupportedOperationException {
        final Container c = getContainerDataSource();
        if (c instanceof Container.Sortable) {
            final int pageIndex = getCurrentPageFirstItemIndex();
            boolean refreshingPreviouslyEnabled = disableContentRefreshing();
            ((Container.Sortable) c).sort(propertyId, ascending);
            setCurrentPageFirstItemIndex(pageIndex);

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     * @see com.vaadin.data.Container.Sortable#getSortableContainerPropertyIds()
     */


    @Override
    public Collection<?> getSortableContainerPropertyIds() {
        final Container c = getContainerDataSource();
        if (c instanceof Container.Sortable && isSortEnabled()) {
            return ((Container.Sortable) c).getSortableContainerPropertyIds();
        } else {
            return Collections.EMPTY_LIST;
        }

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        Button b = new Button("Truncate to 20 rows");
        b.addListener(new Button.ClickListener() {
            @Override
            public void buttonClick(ClickEvent event) {


                Container containerDataSource = t.getContainerDataSource();
                Object[] itemIds = containerDataSource.getItemIds().toArray();
                @SuppressWarnings("unused")
                int c = 0;
                for (int i = 0; i < itemIds.length; i++) {
                    if (i > 19) {
                        containerDataSource.removeItem(itemIds[i]);
                    }
                }
            }
        });

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                    new_name.setContainerDataSource(TestForTablesInitialColumnWidthLogicRendering
                            .getTestTable(5, 100).getContainerDataSource());


                } else {
                    AbstractSelect new_name = (AbstractSelect) c;
                    Container cont = TestForTablesInitialColumnWidthLogicRendering
                            .getTestTable(2, 8).getContainerDataSource();
                    new_name.setContainerDataSource(cont);
                    new_name.setItemCaptionPropertyId(cont
                            .getContainerPropertyIds().iterator().next());


                }
            } else if (c instanceof ComponentContainer) {
                ComponentContainer new_name = (ComponentContainer) c;

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                            (InventoryObject) sourceItemId);
                }


                // Remove the item from the source container and
                // add it to the tree's container
                Container sourceContainer = t.getSourceContainer();
                sourceContainer.removeItem(sourceItemId);
                tree.addItem(beanItem);
                InventoryObject bean = (InventoryObject) beanItem.getBean();
                tree.setChildrenAllowed(beanItem, bean.isContainer());


                // Drop right on an item -> make it a child

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                 * DataBoundTransferrable
                 */
                DataBoundTransferable tr = (DataBoundTransferable) event
                        .getTransferable();
                Object itemId = tr.getItemId();
                Container sourceContainer = tr.getSourceContainer();
                if (tr.getSourceComponent() != tree1) {
                    // if the source is from table (not from tree1 itself),
                    // transfer Name property and use it as an identifier in
                    // tree1
                    Object nameValue = sourceContainer.getItem(itemId)
                            .getItemProperty("Name").getValue();
                    String name = (null != nameValue) ? nameValue.toString()
                            : null;


                    tree1.addItem(name);
                    tree1.setChildrenAllowed(name, false);


                    /*
                     * Remove the item from table
                     */
                    sourceContainer.removeItem(itemId);


                    itemId = name;


                }

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        table.setImmediate(true);
        table.setMultiSelect(true);
        table.setSizeFull();
        table.setSelectable(true);


        Container ds = new IndexedContainer();
        ds.addContainerProperty("column", Integer.class, null);
        for (int i = 0; i < 500; i++) {
            Item item = ds.addItem(i);
            item.getItemProperty("column").setValue(i);
        }
        table.setContainerDataSource(ds);


        return table;

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        layout.setMargin(true);
        setContent(layout);
        SlowComboBox comboBox = new SlowComboBox();
        comboBox.setNullSelectionAllowed(false);
        comboBox.setImmediate(true);
        Container container = createContainer();
        comboBox.setContainerDataSource(container);
        comboBox.setNewItemsAllowed(true);
        comboBox.setFilteringMode(FilteringMode.CONTAINS);
        layout.addComponent(comboBox);
        layout.addComponent(new TextField());

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            @Override
            public void drop(DragAndDropEvent dropEvent) {
                // criteria verify that this is safe
                DataBoundTransferable t = (DataBoundTransferable) dropEvent
                        .getTransferable();
                Container sourceContainer = t.getSourceContainer();
                Object sourceItemId = t.getItemId();
                System.out.println(sourceItemId);


                AbstractSelectTargetDetails dropData = ((AbstractSelectTargetDetails) dropEvent
                        .getTargetDetails());
                Object targetItemId = dropData.getItemIdOver();


                // move item from table to category'
                tree.addItem(sourceItemId);
                tree.setParent(sourceItemId, targetItemId);
                tree.setChildrenAllowed(sourceItemId, false);
                sourceContainer.removeItem(sourceItemId);


            }
        });


        tree.addItem("Item 1");

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        addComponent(row);


        Tree tree = new Tree();
        tree.setSelectable(true);
        tree.setMultiSelect(true);
        Container generateContainer = ValoThemeUI.generateContainer(10, true);
        tree.setContainerDataSource(generateContainer);
        tree.setDragMode(TreeDragMode.NODE);
        row.addComponent(tree);
        tree.setItemCaptionPropertyId(ValoThemeUI.CAPTION_PROPERTY);
        tree.setItemIconPropertyId(ValoThemeUI.ICON_PROPERTY);
        tree.expandItem(generateContainer.getItemIds().iterator().next());


        tree.setDropHandler(new DropHandler() {
            @Override
            public AcceptCriterion getAcceptCriterion() {
                return AcceptAll.get();

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