org.ujorm.wicket.component.grid
Class KeyColumn<U extends Ujo,T>

java.lang.Object
  org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn<U,KeyRing<U>>
      org.ujorm.wicket.component.grid.KeyColumn<U,T>

All Implemented Interfaces:

Serializable, org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator<U>, org.apache.wicket.extensions.markup.html.repeater.data.table.IColumn<U,KeyRing<U>>, org.apache.wicket.extensions.markup.html.repeater.data.table.IStyledColumn<U,KeyRing<U>>, org.apache.wicket.model.IDetachable, org.apache.wicket.util.io.IClusterable

Direct Known Subclasses:

KeyColumnBoolean, KeyColumnDate

public class KeyColumn<U extends Ujo,T>
extends org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn<U,KeyRing<U>>

A convenience implementation of column that adds a Ujo Property to the cell whose model is determined by the provided wicket key expression (same as used by PropertyModel) that is evaluated against the current row's model object

Example:

 public class DataTablePage2 extends WebPage {

     public DataTablePage2() {
         final EmployeeProvider userProvider = new EmployeeProvider();

         final List<IColumn> columns = new ArrayList<IColumn>();
         columns.add(new KeyColumn(Employee.ID));
         columns.add(new KeyColumn(Employee.FIRSTNAME));
         columns.add(new KeyColumn(Employee.LASTNAME));
         columns.add(new KeyColumn(Employee.EMAIL));
         columns.add(new KeyColumn(Employee.STUDENT));

         add(new DefaultDataTable("datatable", columns, userProvider, 20));
     }
 }
 

The above will attach a label to the cell with a key model for the expression "name.first"

Author:

Pavel Ponec

See Also:

KeyModel, Serialized Form

Field Summary

protected String	cssClass The CSS class of the column
protected KeyRing<U>	keySerializable Data key
static String	PROPERTY_PREFIX Localization key prefix
static boolean	SORTING_OFF Disable a grid column sorting
static boolean	SORTING_ON Enable a grid column sorting

Constructor Summary

KeyColumn(org.apache.wicket.model.IModel<String> label, KeyRing<U> key, KeyRing<U> sortKey)
Creates a sortable key column

KeyColumn(KeyRing<U> key, KeyRing<U> sortKey)
Creates a sortable key column

Method Summary

protected void	appendCssClass(org.apache.wicket.Component value, U ujo) Append a CSS class - to overwriting only
protected org.apache.wicket.Component	createValueCoponent(String componentId, org.apache.wicket.model.IModel<?> valueModel, U ujo) Create the Label for a Value component
protected org.apache.wicket.model.IModel<?>	createValueModel(U ujo) Factory method for generating a model that will generated the displayed value.
String	getCssClass()
Key<U,T>	getKey() Get the Key
String	getPropertyExpression()
static <U extends Ujo,T> KeyColumn<U,T>	of(Key<U,T> key, boolean sorted) A factory method
static <U extends Ujo,T> KeyColumn<U,T>	of(Key<U,T> key, boolean sorted, String cssClass) A factory method
static <U extends Ujo,T> KeyColumn<U,T>	of(Key<U,T> key, Key<U,T> sort, String cssClass) A factory method
void	populateItem(org.apache.wicket.markup.repeater.Item<org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator<U>> item, String componentId, org.apache.wicket.model.IModel<U> rowModel) Implementation of populateItem which adds a label to the cell whose model is the provided key expression evaluated against rowModelObject
void	setCssClass(String cssClass) Assign a CSS class
String	toString() Domain class + key

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

detach, getDisplayModel, getHeader, getSortProperty, isSortable

Methods inherited from class java.lang.Object

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

Field Detail

SORTING_ON

public static final boolean SORTING_ON

Enable a grid column sorting

See Also:

Constant Field Values

SORTING_OFF

public static final boolean SORTING_OFF

Disable a grid column sorting

See Also:

Constant Field Values

PROPERTY_PREFIX

public static final String PROPERTY_PREFIX

Localization key prefix

See Also:

Constant Field Values

keySerializable

protected final KeyRing<U extends Ujo> keySerializable

Data key

cssClass

protected String cssClass

The CSS class of the column

Constructor Detail

KeyColumn

public KeyColumn(KeyRing<U> key,
                 KeyRing<U> sortKey)

Creates a sortable key column

Parameters:

key - Ujorm key to display in the column

sortKey - Optional persistent ujorm key to sorting

cssClass - optional argument for a CSS class

KeyColumn

public KeyColumn(org.apache.wicket.model.IModel<String> label,
                 KeyRing<U> key,
                 KeyRing<U> sortKey)

Creates a sortable key column

Parameters:

label - Column label

key - Ujorm key to display in the column

sortKey - Optional persistent ujorm key to sorting

cssClass - optional argument for a CSS class

Method Detail

populateItem

public void populateItem(org.apache.wicket.markup.repeater.Item<org.apache.wicket.extensions.markup.html.repeater.data.grid.ICellPopulator<U>> item,
                         String componentId,
                         org.apache.wicket.model.IModel<U> rowModel)

Implementation of populateItem which adds a label to the cell whose model is the provided key expression evaluated against rowModelObject

See Also:

ICellPopulator.populateItem(Item, String, IModel)

getCssClass

public String getCssClass()

Specified by:

getCssClass in interface org.apache.wicket.extensions.markup.html.repeater.data.table.IStyledColumn<U extends Ujo,KeyRing<U extends Ujo>>

Overrides:

getCssClass in class org.apache.wicket.extensions.markup.html.repeater.data.table.AbstractColumn<U extends Ujo,KeyRing<U extends Ujo>>

setCssClass

public void setCssClass(String cssClass)

Assign a CSS class

createValueCoponent

protected org.apache.wicket.Component createValueCoponent(String componentId,
                                                          org.apache.wicket.model.IModel<?> valueModel,
                                                          U ujo)

Create the Label for a Value component

createValueModel

protected org.apache.wicket.model.IModel<?> createValueModel(U ujo)

Factory method for generating a model that will generated the displayed value. Typically the model is a key model using the keySerializable specified in the constructor.

Parameters:

rowModel -

Returns:

model

getPropertyExpression

public String getPropertyExpression()

Returns:

wicket key expression

getKey

public Key<U,T> getKey()

Get the Key

appendCssClass

protected void appendCssClass(org.apache.wicket.Component value,
                              U ujo)

Append a CSS class - to overwriting only

toString

public String toString()

Domain class + key

Overrides:

toString in class Object

of

public static <U extends Ujo,T> KeyColumn<U,T> of(Key<U,T> key,
                                                  boolean sorted)

A factory method

of

public static <U extends Ujo,T> KeyColumn<U,T> of(Key<U,T> key,
                                                  boolean sorted,
                                                  String cssClass)

A factory method

of

public static <U extends Ujo,T> KeyColumn<U,T> of(Key<U,T> key,
                                                  Key<U,T> sort,
                                                  String cssClass)

A factory method