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

Class LambdaColumn<T,S>

java.lang.Object
org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn<T,S>
org.apache.wicket.extensions.markup.html.repeater.data.table.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:

  • Constructor Summary

    Constructors
    Constructor
    Description
    LambdaColumn(org.apache.wicket.model.IModel<String> displayModel, org.danekja.java.util.function.serializable.SerializableFunction<T,?> function)
    Creates a column that is not sortable.
    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.

  • Method Summary

    Modifier and Type
    Method
    Description
    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.
    void
    populateItem(org.apache.wicket.markup.repeater.Item<ICellPopulator<T>> item, String componentId, org.apache.wicket.model.IModel<T> rowModel)
    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

    Methods inherited from class org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn

    detach, getCssClass, getDisplayModel, getHeader, getSortProperty

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    Methods inherited from interface org.apache.wicket.extensions.markup.html.repeater.data.table.IColumn

    getHeader, getHeaderColspan, getHeaderRowspan, getSortProperty, isSortable

    Methods inherited from interface org.apache.wicket.model.IDetachable

    detach

    Methods inherited from interface org.apache.wicket.extensions.markup.html.repeater.data.table.export.IExportableColumn

    getDisplayModel

  • Constructor Details

    • 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 Details

    • 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