com.vaadin.client.widget.treegrid

Class TreeGrid.BodyUpdater

java.lang.Object

com.vaadin.client.widgets.Grid.BodyUpdater

com.vaadin.client.widget.treegrid.TreeGrid.BodyUpdater

All Implemented Interfaces:

EscalatorUpdater

Enclosing class:

TreeGrid

protected class TreeGrid.BodyUpdater
extends Grid.BodyUpdater

Body updater that adds additional style to each row containing depth information inside the hierarchy.

Field Summary

Fields inherited from interface com.vaadin.client.widget.escalator.EscalatorUpdater

NULL

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BodyUpdater()

Method Summary

Modifier and Type	Method and Description
void	update(Row row, Iterable cellsToUpdate) Renders a row contained in a row container.

Methods inherited from class com.vaadin.client.widgets.Grid.BodyUpdater

postAttach, postDetach, preAttach, preDetach

Methods inherited from class java.lang.Object

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

Constructor Detail

BodyUpdater

protected BodyUpdater()

Method Detail

update

public void update(Row row,
                   Iterable cellsToUpdate)

Description copied from interface: EscalatorUpdater

Renders a row contained in a row container.

Note: If rendering of cells is deferred (e.g. because asynchronous data retrieval), this method is responsible for explicitly displaying some placeholder data (empty content is valid). Because the cells (and rows) in an escalator are recycled, failing to reset a cell's presentation will lead to wrong data being displayed in the escalator.

For performance reasons, the escalator will never autonomously clear any data in a cell.

Specified by:

update in interface EscalatorUpdater

Overrides:

update in class Grid.BodyUpdater

Parameters:

row - Information about the row that is being updated. Note: You should not store nor reuse this reference.

cellsToUpdate - A collection of cells that need to be updated. Note: You should neither store nor reuse the reference to the iterable, nor to the individual cells.