echopointng.ui.syncpeer
Class AbstractEchoPointContainerPeer

java.lang.Object
  echopointng.ui.syncpeer.AbstractEchoPointPeer
      echopointng.ui.syncpeer.AbstractEchoPointContainerPeer

All Implemented Interfaces:

ComponentSynchronizePeer, DomUpdateSupport

Direct Known Subclasses:

ContainerExPeer, ExpandableSectionPeer, GroupBoxPeer, LabelExPeer, ListSectionPeer, LiveTablePeer, MenuItemPeer, PopUpPeer, SliderPeer, TabbedPanePeer, TemplatePanelPeer, TitleBarPeer, TreePeer

public abstract class AbstractEchoPointContainerPeer
extends AbstractEchoPointPeer

AbstractEchoPointContainerPeer is a base class for peers, that provides a default implementation of "container" handling for DomAdd, DomUpdate etc..

Child components are wrapped in a "container" element which allows the framework to "add/update/remove" them easily.

Field Summary

Fields inherited from class echopointng.ui.syncpeer.AbstractEchoPointPeer

DEFAULT_CONTAINER_TAG, partialUpdateManager

Constructor Summary

AbstractEchoPointContainerPeer()

Method Summary

java.lang.String	getContainerId(Component child) Returns an identifier in the form "parentId_contains_childId".
boolean	renderUpdate(RenderContext rc, ServerComponentUpdate update, java.lang.String targetId) This looks for children with updated layour data or updated properties on the peer's component and if there are any, it removes and redraws the entire peer otherwise it just replaces the children and the redraws them.

Methods inherited from class echopointng.ui.syncpeer.AbstractEchoPointPeer

disposeRenderState, renderAdd, renderDispose, renderHtml, renderHtml, renderReplaceableChild, renderUpdateAddChildren, renderUpdateBaseImpl, renderUpdateRemoveChildren, retreiveRenderState, storeRenderState

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractEchoPointContainerPeer

public AbstractEchoPointContainerPeer()

Method Detail

getContainerId

public java.lang.String getContainerId(Component child)

Returns an identifier in the form "parentId_contains_childId".

Specified by:

getContainerId in interface ComponentSynchronizePeer

Overrides:

getContainerId in class AbstractEchoPointPeer

Parameters:

child - a Component whose parent is of the type synchronized by this peer object.

Returns:

the id of the element which should contain the child component's rendered HTML.

See Also:

nextapp.echo2.webcontainer.SynchronizePeer#getContainerId(nextapp.echo2.app.Component)

renderUpdate

public boolean renderUpdate(RenderContext rc,
                            ServerComponentUpdate update,
                            java.lang.String targetId)

This looks for children with updated layour data or updated properties on the peer's component and if there are any, it removes and redraws the entire peer otherwise it just replaces the children and the redraws them. This method ends up calling the ends renderUpdate(rc, update, targetId, fullReplace) method with an appropriate value for fullReplace.

Specified by:

renderUpdate in interface ComponentSynchronizePeer

Overrides:

renderUpdate in class AbstractEchoPointPeer

Parameters:

rc - the relevant RenderContext

update - the ServerComponentUpdate for which this operation is being performed

targetId - the id of the HTML element inside of which the components HTML code should be rendered.

Returns:

true if updates to descendants should NOT be performed

See Also:

nextapp.echo2.webcontainer.SynchronizePeer#renderUpdate(nextapp.echo2.webcontainer.RenderContext, nextapp.echo2.app.update.ServerComponentUpdate, java.lang.String)