org.apache.wicket.extensions.markup.html.repeater.data.grid

Interface ICellPopulator<T>

Type Parameters:

T - Model object type

All Superinterfaces:

IClusterable, IDetachable, Serializable

All Known Subinterfaces:

IColumn<T,S>, IExportableColumn<T,S>, IFilteredColumn<T,S>, IStyledColumn<T,S>, ITreeColumn<T,S>

All Known Implementing Classes:

AbstractColumn, AbstractExportableColumn, AbstractTreeColumn, ChoiceFilteredPropertyColumn, FilteredAbstractColumn, FilteredPropertyColumn, HeaderlessColumn, LambdaColumn, PropertyColumn, PropertyPopulator, TextFilteredPropertyColumn, TreeColumn

public interface ICellPopulator<T>
extends IClusterable, IDetachable

Represents an object that is capable of populating an Item container representing a cell in a DataGridView with components.

Example

 class NamePopulator implements ICellPopulator
 {
        void populateItem(final Item cellItem, final String componentId, final IModel rowModel) {
       User user=(User)rowModel.getObject(cellItem);
       String name=user.getFirstName()+" "+user.getLastName();
       cellItem.add(new Label(componentId, name);
     }}
 

In this example the IDataProvider assigned to the DataGridView retrieves User objects from the database. The cell populator adds a label to the cell that will display the full name of the user.

Author:

Igor Vaynberg (ivaynberg)

See Also:

DataGridView, Item

Method Summary

Modifier and Type	Method and Description
void	populateItem(Item<ICellPopulator<T>> cellItem, String componentId, 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 interface org.apache.wicket.model.IDetachable

detach

Method Detail

populateItem

void populateItem(Item<ICellPopulator<T>> cellItem,
                  String componentId,
                  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

Parameters:

cellItem - 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