com.google.gwt.user.client.ui
Class FiniteWidgetIterator

java.lang.Object
  com.google.gwt.user.client.ui.FiniteWidgetIterator

All Implemented Interfaces:

java.util.Iterator<Widget>

 class FiniteWidgetIterator
extends java.lang.Object
implements java.util.Iterator<Widget>

Iterator over a finite number of widgets, which are stored in a delegate class (usually a widget panel).

In order to use this class, assign each widget in the panel an arbitrary index. For example, HeaderPanel defines the header as index 0, the content as index 1, and the footer as index 2. Construct a new FiniteWidgetIterator with a FiniteWidgetIterator.WidgetProvider that provides the child widgets.

FiniteWidgetIterator

public FiniteWidgetIterator(FiniteWidgetIterator.WidgetProvider provider,
                            int widgetCount)

Construct a new FiniteWidgetIterator.

The widget count is the number of child widgets that the panel supports, regardless of whether or not they are set.

Parameters:

provider - the widget provider

widgetCount - the finite number of widgets that can be provided

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<Widget>

next

public Widget next()

Specified by:

next in interface java.util.Iterator<Widget>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<Widget>