Package org.apache.wicket.markup.repeater.data

Class GridView<T>

  • Type Parameters:
    T -
    All Implemented Interfaces:
    java.io.Serializable, java.lang.Iterable<Component>, IEventSink, IEventSource, IFeedbackContributor, IConverterLocator, IMetadataContext<java.io.Serializable,​Component>, IHeaderContributor, IPageable, IPageableItems, IRequestableComponent, org.apache.wicket.util.IHierarchical<Component>, org.apache.wicket.util.io.IClusterable
    public abstract class GridView<T>
extends DataViewBase<T>
    A pageable DataView which breaks the data in the IDataProvider into a number of data-rows, depending on the column size. A typical use case is to show items in a table with ie 3 columns where the table is filled left to right top-down so that for each third item a new row is created.

    Example 

       <tbody>
     <tr wicket:id="rows" class"even">
       <td wicket:id="cols">
         <span wicket:id="id">Test ID</span>
       </td>
     </tr>
   </tbody>
    and in java: 
     add(new GridView("rows", dataProvider).setColumns(3));
    Author:
    Igor Vaynberg, Christian Essl
    See Also:
    Serialized Form

    • Constructor Detail

      • GridView

        public GridView​(java.lang.String id,
                IDataProvider<T> dataProvider)
        Parameters:
        id - component id
        dataProvider - data provider

    • Method Detail

      • getColumns

        public int getColumns()
        Returns:
        number of columns

      • setColumns

        public GridView<T> setColumns​(int cols)
        Sets number of columns
        Parameters:
        cols - number of columns
        Returns:
        this for chaining

      • getRows

        public int getRows()
        Returns:
        number of rows per page

      • setRows

        public GridView<T> setRows​(int rows)
        Sets number of rows per page
        Parameters:
        rows - number of rows
        Returns:
        this for chaining

      • addItems

        protected void addItems​(java.util.Iterator<Item<T>> items)
        Description copied from class: RefreshingView
        Add items to the view. Prior to this all items were removed so every request this function starts from a clean slate.
        Overrides:
        addItems in class RefreshingView<T>
        Parameters:
        items - item instances to be added to this view

      • getDataProvider

        public IDataProvider<T> getDataProvider()
        Returns:
        data provider

      • populateEmptyItem

        protected abstract void populateEmptyItem​(Item<T> item)
        Add component to an Item for which there is no model anymore and is shown in a cell
        Parameters:
        item - Item object

      • newEmptyItem

        protected Item<T> newEmptyItem​(java.lang.String id,
                               int index)
        Create a Item which represents an empty cell (there is no model for it in the DataProvider)
        Parameters:
        id -
        index -
        Returns:
        created item

      • newRowItem

        protected Item<?> newRowItem​(java.lang.String id,
                             int index)
        Create a new Item which will hold a row.
        Parameters:
        id -
        index -
        Returns:
        created Item