org.apache.wicket.extensions.markup.html.tree.table
Class PropertyTreeColumn<T>

java.lang.Object
  org.apache.wicket.extensions.markup.html.tree.table.AbstractColumn
      org.apache.wicket.extensions.markup.html.tree.table.AbstractPropertyColumn<T>
          org.apache.wicket.extensions.markup.html.tree.table.PropertyTreeColumn<T>

Type Parameters:

T - the type of the property that is rendered in this column

All Implemented Interfaces:

java.io.Serializable, IColumn, IClusterable

public class PropertyTreeColumn<T>
extends AbstractPropertyColumn<T>

Convenience class for building tree columns, i.e. columns that contain the actual tree.

Author:

Matej Knopp

See Also:

Serialized Form

Constructor Summary

PropertyTreeColumn(ColumnLocation location, java.lang.String header, java.lang.String propertyExpression)
Creates new column.

Method Summary

Component	newCell(MarkupContainer parent, java.lang.String id, javax.swing.tree.TreeNode node, int level) This method is used to populate the cell for given node in case when IColumn.newCell(TreeNode, int) returned null.
IRenderable	newCell(javax.swing.tree.TreeNode node, int level) Creates the IRenderable instance for given node.

Methods inherited from class org.apache.wicket.extensions.markup.html.tree.table.AbstractPropertyColumn

getConverter, getLocale, getNodeValue, getPropertyExpression, setConverter, setLocale

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

getLocation, getSpan, getTreeTable, isVisible, newHeader, setTreeTable

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyTreeColumn

public PropertyTreeColumn(ColumnLocation location,
                          java.lang.String header,
                          java.lang.String propertyExpression)

Creates new column. Checks if the column is not aligned in middle. In case it is, throws an exception.

Parameters:

location - Specifies how the column should be aligned and what his size should be

header - Header caption

propertyExpression - Expression for property access

Method Detail

newCell

public Component newCell(MarkupContainer parent,
                         java.lang.String id,
                         javax.swing.tree.TreeNode node,
                         int level)

Description copied from interface: IColumn

This method is used to populate the cell for given node in case when IColumn.newCell(TreeNode, int) returned null.

Parameters:

parent - The parent to which the cell must be added. Can also be used to find the TreeTable instance (using parent.findParent(TreeTable.cass))

id - The component id

node - TreeNode for the cell

level - Convenience parameter that indicates how deep the node is in hierarchy

Returns:

The populated cell component

See Also:

IColumn.newCell(MarkupContainer, String, TreeNode, int)

newCell

public IRenderable newCell(javax.swing.tree.TreeNode node,
                           int level)

Description copied from interface: IColumn

Creates the IRenderable instance for given node. IRenderable can be used as lightweight alternative to regular Component for cells, that don't require user interaction (just display data).

If this method returns null, IColumn.newCell(MarkupContainer, String, TreeNode, int) is used to popuplate the cell.

Parameters:

node - TreeNode for the cell

level - Convenience parameter that indicates how deep the node is in hierarchy

Returns:

The cell renderer

See Also:

IColumn.newCell(TreeNode, int)