Examples of com.vaadin.data.Item

com.vaadin.data.Item

Provides a mechanism for handling a set of Properties, each associated to a locally unique non-null identifier. The interface is split into subinterfaces to enable a class to implement only the functionalities it needs.
@author Vaadin Ltd @since 3.0

        if (cells.length != availableCols.size()) {
            return null;
        }


        // Creates new item
        Item item;
        if (itemId == null) {
            itemId = items.addItem();
            if (itemId == null) {
                return null;
            }
            item = items.getItem(itemId);
        } else {
            item = items.addItem(itemId);
        }
        if (item == null) {
            return null;
        }


        // Fills the item properties
        for (int i = 0; i < availableCols.size(); i++) {
            item.getItemProperty(availableCols.get(i)).setValue(cells[i]);
        }


        if (!(items instanceof Container.ItemSetChangeNotifier)) {
            refreshRowCache();
        }

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            if (colkey != null) {
                propertyId = columnIdMap.get(colkey);
            }
            MouseEventDetails evt = MouseEventDetails
                    .deSerialize((String) variables.get("clickEvent"));
            Item item = getItem(itemId);
            if (item != null) {
                fireEvent(new ItemClickEvent(this, item, itemId, propertyId,
                        evt));
            }
        }

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     */


    @Override
    public Item addItemAfter(Object previousItemId, Object newItemId)
            throws UnsupportedOperationException {
        Item item = ((Container.Ordered) items).addItemAfter(previousItemId,
                newItemId);
        if (!(items instanceof Container.ItemSetChangeNotifier)) {
            refreshRowCache();
        }
        return item;

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        IndexedContainer ic = new IndexedContainer();
        ic.addContainerProperty("a", String.class, null);


        for (String s : new String[] { "Lorem", "ipsum", "dolor", "sit",
                "amet", "consectetuer" }) {
            Item item = ic.addItem(s);
            item.getItemProperty("a").setValue(s);


        }


        return ic;
    }

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            containerA = new IndexedContainer();
            containerA.addContainerProperty(property1, String.class, "");
            containerA.addContainerProperty(property2, String.class, "");
            containerA.addContainerProperty(property3, String.class, "");


            Item itemA = containerA.addItem(new Object());
            itemA.getItemProperty(property1).setValue("value1");
            itemA.getItemProperty(property2).setValue("value2");
            itemA.getItemProperty(property3).setValue("value3");


            containerB = new IndexedContainer();
            containerB.addContainerProperty(property4, String.class, "");
            containerB.addContainerProperty(property3, String.class, "");
            containerB.addContainerProperty(property2, String.class, "");


            Item itemB = containerB.addItem(new Object());
            itemB.getItemProperty(property4).setValue("value_prop4");
            itemB.getItemProperty(property3).setValue("value_prop3");
            itemB.getItemProperty(property2).setValue("value_prop2");
        }

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    }


    public void fill(IndexedContainer container, int size) {
        for (int i = 0; i < size; i++) {
            int randInt = i;
            Item item = container.addItem(new Integer(i));
            VerticalLayout layout = new VerticalLayout();
            layout.setId("lo" + i);
            layout.addComponent(new Button("Test " + randInt));
            item.getItemProperty("layout").setValue(layout);
        }
    }

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     * @see com.vaadin.data.Container#getContainerProperty(java.lang.Object,
     * java.lang.Object)
     */
    @Override
    public Property getContainerProperty(Object itemId, Object propertyId) {
        Item item = getItem(itemId);
        if (item == null) {
            return null;
        }
        return item.getItemProperty(propertyId);
    }

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     */
    @Override
    public boolean removeItem(Object itemId) {
        // TODO should also remove items that are filtered out
        int origSize = size();
        Item item = getItem(itemId);
        int position = indexOfId(itemId);


        if (internalRemoveItem(itemId)) {
            // detach listeners from Item
            removeAllValueChangeListeners(item);

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        table = new Table("Enabled");
        table.setPageLength(7);
        table.addContainerProperty("Text", String.class, null);
        for (int i = 0; i < 150; i++) {
            Item item = table.addItem("Item" + i);
            Property<String> p = item.getItemProperty("Text");
            p.setValue(i % 5 == 0 ? "enabled" : "disabled");
        }


        table.setTableFieldFactory(new DefaultFieldFactory() {


            @Override
            public Field<?> createField(Container container, Object itemId,
                    Object propertyId, Component uiContext) {
                Field<?> f = super.createField(container, itemId, propertyId,
                        uiContext);
                Item item = container.getItem(itemId);
                Property<?> p = item.getItemProperty(propertyId);
                if ("disabled".equals(p.getValue())) {
                    f.setEnabled(false);
                }
                return f;
            }

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        table.setCurrentPageFirstItemIndex(0);
    }


    private void addRow(IndexedContainer datasource) {
        int rowNumber = datasource.size();
        Item row = datasource.addItem(rowNumber);
        row.getItemProperty("value").setValue(rowNumber);
    }

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