nextapp.echo2.webcontainer
Class PartialUpdateManager

java.lang.Object
  nextapp.echo2.webcontainer.PartialUpdateManager

public class PartialUpdateManager
extends java.lang.Object

A utility class for rendering a collection of property updates to an existing HTML representation of a component on the client browser.

Constructor Summary

PartialUpdateManager()

Method Summary

void	add(java.lang.String propertyName, PartialUpdateParticipant updateParticipant) Adds a PartialUpdateParticipant to handle a given property.
boolean	canProcess(RenderContext rc, ServerComponentUpdate update) Determines if this PartialUpdateManager has participants to update all changed properties specified in update.
void	process(RenderContext rc, ServerComponentUpdate update) Renders updates to all properties in the provided update.

Methods inherited from class java.lang.Object

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

Constructor Detail

PartialUpdateManager

public PartialUpdateManager()

Method Detail

add

public void add(java.lang.String propertyName,
                PartialUpdateParticipant updateParticipant)

Adds a PartialUpdateParticipant to handle a given property.

Parameters:

propertyName - the name of the property

updateParticipant - the PartialUpdateParticipant

canProcess

public boolean canProcess(RenderContext rc,
                          ServerComponentUpdate update)

Determines if this PartialUpdateManager has participants to update all changed properties specified in update.

Parameters:

rc - the relevant RenderContext

update - the update

Returns:

true if this registry is capable of performing all the described property updates

process

public void process(RenderContext rc,
                    ServerComponentUpdate update)

Renders updates to all properties in the provided update. If the update contains a property for which a participant does not exist in this registry, the given property is skipped.

Parameters:

rc - the relevant RenderContext

update - the update to process