echopoint.ui.layout
Class LayoutManagerPeer

java.lang.Object
  echopoint.ui.layout.LayoutManagerPeer

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BrowserLayoutManagerUI, GridLayoutManagerUI, HorizontalLayoutManagerUI, HtmlTemplateLayoutManagerUI, JspTemplateLayoutManagerUI, XyLayoutManagerUI

public abstract class LayoutManagerPeer

extends java.lang.Object

implements java.io.Serializable

An abstract LayoutManagerPeer class that must be used as the basis for the an LayoutManagerPeer.

See Also:

Serialized Form

Constructor Summary

LayoutManagerPeer()
Default contructor.

Method Summary

LayoutManager	getLayoutManager() Returns the underlying LayoutManager.
void	registered() Called to notify the LayoutManager peer that it has been registered to an LayoutManager.
abstract void	render(nextapp.echoservlet.RenderingContext rc, nextapp.echoservlet.html.Element parent, nextapp.echoservlet.ComponentPeer parentPeer, nextapp.echoservlet.ComponentPeer[] children) This method is called when the LayoutManager should layout the child component peer objects.
void	setLayoutManager(LayoutManager layoutManager) Initializes the LayoutManager peer: this method must be called before any other methods.

Methods inherited from class java.lang.Object

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

Constructor Detail

LayoutManagerPeer

public LayoutManagerPeer()

Default contructor. Must have a public empty contructor for dynamic class loading

Method Detail

getLayoutManager

public LayoutManager getLayoutManager()

Returns the underlying LayoutManager. Note that the reference to the layoutManager is a weak reference. When the layoutManager is collected, this linking will be lost and this method will return null.

Returns:

The underlying LayoutManager.

registered

public void registered()

Called to notify the LayoutManager peer that it has been registered to an LayoutManager. This method should be overridden when notification of registration is required.

render

public abstract void render(nextapp.echoservlet.RenderingContext rc,
                            nextapp.echoservlet.html.Element parent,
                            nextapp.echoservlet.ComponentPeer parentPeer,
                            nextapp.echoservlet.ComponentPeer[] children)

This method is called when the LayoutManager should layout the child component peer objects. This method will be called from the ComponentPeer of the Component that contains this LayoutManager.

See Also:

for more information on rendering

setLayoutManager

public void setLayoutManager(LayoutManager layoutManager)

Initializes the LayoutManager peer: this method must be called before any other methods. Note that the reference to the layoutManager is a weak reference. When the layoutManager is collected, this linking will be lost.