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.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	FiniteWidgetIterator.WidgetProvider Provides widgets to the iterator.

Constructor Summary

Constructors

Constructor and Description
FiniteWidgetIterator(FiniteWidgetIterator.WidgetProvider provider, int widgetCount) Construct a new FiniteWidgetIterator.

Method Summary

Modifier and Type	Method and Description
boolean	hasNext()
Widget	next()
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

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

Method Detail

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>