Package org.apache.wicket.extensions.markup.html.repeater.data.table

Class LambdaColumn<T,​S>

  • Type Parameters:
    T - The Model object type
    S - the type of the sort property
    All Implemented Interfaces:
    Serializable, ICellPopulator<T>, IExportableColumn<T,​S>, IColumn<T,​S>, IStyledColumn<T,​S>, org.apache.wicket.model.IDetachable, org.apache.wicket.util.io.IClusterable
    public class LambdaColumn<T,​S>
extends AbstractColumn<T,​S>
implements IExportableColumn<T,​S>
    An implementation of column that adds a label to the cell whose model is determined by the provided SerializableFunction that is evaluated against the current row's model object

    Example for a table of Contacts: 

     columns[0] = new LambdaColumn(new Model<String>("First Name"), Contact::getFirstName);
    The above will attach a label to the cell which calls #getFirstName() for each displayed contact.
    See Also:
    Serialized Form

    • Constructor Detail

      • LambdaColumn

        public LambdaColumn​(org.apache.wicket.model.IModel<String> displayModel,
                    org.danekja.java.util.function.serializable.SerializableFunction<T,​?> function)
        Creates a column that is not sortable.
        Parameters:
        displayModel - display model
        function - Wicket function to be applied to each row

      • LambdaColumn

        public LambdaColumn​(org.apache.wicket.model.IModel<String> displayModel,
                    S sortProperty,
                    org.danekja.java.util.function.serializable.SerializableFunction<T,​?> function)
        Creates a property column that is also sortable.
        Parameters:
        displayModel - display model
        sortProperty - sort property
        function - Wicket function to be applied to each row

    • Method Detail

      • populateItem

        public void populateItem​(org.apache.wicket.markup.repeater.Item<ICellPopulator<T>> item,
                         String componentId,
                         org.apache.wicket.model.IModel<T> rowModel)
        Description copied from interface: ICellPopulator
        Method used to populate a cell in the DataGridView Implementation MUST add a component to the cellItem using the component id provided by componentId argument, otherwise a WicketRuntimeException will be thrown
        Specified by:
        populateItem in interface ICellPopulator<T>
        Parameters:
        item - the item representing the current table cell being rendered
        componentId - the id of the component used to render the cell (only one component should be added to the cell)
        rowModel - the model of the row item being rendered. this model usually contains the model provided by the data provider.
        See Also:
        Item

      • getDataModel

        public org.apache.wicket.model.IModel<?> getDataModel​(org.apache.wicket.model.IModel<T> rowModel)
        Factory method for generating a model that will generated the displayed value.
        Specified by:
        getDataModel in interface IExportableColumn<T,​S>
        Parameters:
        rowModel -
        Returns:
        model