org.apache.wicket.markup.renderStrategy
Class DeepChildFirstVisitor

java.lang.Object
  org.apache.wicket.markup.renderStrategy.DeepChildFirstVisitor

All Implemented Interfaces:

IVisitor<Component,java.lang.Void>

public abstract class DeepChildFirstVisitor
extends java.lang.Object
implements IVisitor<Component,java.lang.Void>

Author:

Juergen Donnerstag

Constructor Summary

DeepChildFirstVisitor()
Construct.

Method Summary

abstract void	component(Component component, IVisit<java.lang.Void> visit) Called at each object in a visit.
abstract boolean	preCheck(Component component) In order to find the deepest component, we traverse downwards starting from the root (e.g.
Visit<java.lang.Void>	visit(Component rootComponent) Render the child hierarchy headers.
Visit<java.lang.Void>	visit(Component rootComponent, Visit<java.lang.Void> visit) Render the child hierarchy headers.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeepChildFirstVisitor

public DeepChildFirstVisitor()

Construct.

Method Detail

visit

public final Visit<java.lang.Void> visit(Component rootComponent)

Render the child hierarchy headers.

Parameters:

rootComponent -

Returns:

The object return by component()

visit

public final Visit<java.lang.Void> visit(Component rootComponent,
                                         Visit<java.lang.Void> visit)

Render the child hierarchy headers.

Parameters:

rootComponent -

visit -

Returns:

The object return by component()

component

public abstract void component(Component component,
                               IVisit<java.lang.Void> visit)

Description copied from interface: IVisitor

Called at each object in a visit.

Specified by:

component in interface IVisitor<Component,java.lang.Void>

Parameters:

component - Object being visited

visit - Object used to control the visit/traversal

preCheck

public abstract boolean preCheck(Component component)

In order to find the deepest component, we traverse downwards starting from the root (e.g. Page). However, once a component is not disabled (preCheck() returns false), iteration will stop and traversal continues with the sibling.

Parameters:

component - The component to be tested

Returns:

True, if component is enabled