com.google.gwt.user.cellview.client
Class Header<H>

java.lang.Object
  com.google.gwt.user.cellview.client.Header<H>

Type Parameters:

H - the Cell type

Direct Known Subclasses:

SafeHtmlHeader, TextHeader

public abstract class Header<H>
extends java.lang.Object

A table column header or footer.

Header

public Header(Cell<H> cell)

Construct a Header with a given Cell.

Parameters:

cell - the Cell responsible for rendering items in the header

getCell

public Cell<H> getCell()

Return the Cell responsible for rendering items in the header.

Returns:

the header Cell

getValue

public abstract H getValue()

Return the header value.

Returns:

the header value

onBrowserEvent

public void onBrowserEvent(Element elem,
                           NativeEvent event)

Handle a browser event that took place within the header.

Parameters:

elem - the parent Element

event - the native browser event

render

public void render(SafeHtmlBuilder sb)

Render the header.

Parameters:

sb - a SafeHtmlBuilder to render into

setUpdater

public void setUpdater(ValueUpdater<H> updater)

Set the ValueUpdater.

Parameters:

updater - the value updater to use

getKey

protected java.lang.Object getKey()

Get the key for the header value. By default, the key is the same as the value. Override this method to return a custom key.

Returns:

the key associated with the value