public class Body extends AbstractTag
AbstractTag.ExtraCtrl
AbstractComponent.Children
_tagnm
APPLICATION_SCOPE, COMPONENT_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE, SPACE_SCOPE
AFTER_CHILD_ADDED, AFTER_CHILD_REMOVED, AFTER_PAGE_ATTACHED, AFTER_PAGE_DETACHED, CE_BUSY_IGNORE, CE_DUPLICATE_IGNORE, CE_IMPORTANT, CE_NON_DEFERRABLE, CE_REPEAT_IGNORE
Constructor and Description |
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Body() |
Modifier and Type | Method and Description |
---|---|
void |
beforeParentChanged(Component parent)
Default: If parent is null, execute the @Destroy method if any.
|
void |
invalidate()
Invalidates this component by setting the dirty flag
such that it will be redraw the whole content of this
component and its dependencies later.
|
void |
redraw(java.io.Writer out)
Redraws this component and all its descendants.
|
clone, getAccesskey, getDir, getDynamicProperty, getExtraCtrl, getLang, getPropertyAccess, getSclass, getStyle, getTabindex, getTag, getTitle, getWidgetClass, hasDynamicProperty, isChildable, isContenteditable, isDraggable, isHidden, isOrphanTag, isSpellcheck, redrawChildrenDirectly, renderProperties, setAccesskey, setContenteditable, setDir, setDraggable, setDynamicProperty, setHidden, setLang, setSclass, setSpellcheck, setStyle, setTabindex, setTitle, setVisible, shallHideId, toString
addAnnotation, addAnnotation, addCallback, addClientEvent, addEventHandler, addEventListener, addEventListener, addForward, addForward, addForward, addForward, addMoved, addRedrawCallback, addScopeListener, addShadowRoot, addShadowRootBefore, addSharedEventHandlerMap, appendChild, applyProperties, beforeChildAdded, beforeChildRemoved, detach, didActivate, didActivate, didDeserialize, didDeserialize, disableBindingAnnotation, disableClientUpdate, enableBindingAnnotation, getAnnotatedProperties, getAnnotatedPropertiesBy, getAnnotation, getAnnotation, getAnnotations, getAnnotations, getAnnotations, getAttribute, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getAuService, getAutag, getCallback, getChildren, getClientAttribute, getClientDataAttribute, getClientEvents, getDefaultMold, getDefinition, getDesktop, getEventHandler, getEventHandlerNames, getEventListenerMap, getEventListeners, getFellow, getFellow, getFellowIfAny, getFellowIfAny, getFellows, getFirstChild, getId, getLastChild, getListenerIterator, getMold, getNextSibling, getPage, getParent, getPreviousSibling, getRedrawCallback, getRoot, getShadowFellowIfAny, getShadowRoots, getShadowVariable, getShadowVariable, getShadowVariable0, getSpaceOwner, getSpecialRendererOutput, getStubonly, getSubBindingAnnotationCount, getTemplate, getTemplateNames, getUuid, getWidgetAttribute, getWidgetAttributeNames, getWidgetListener, getWidgetListenerNames, getWidgetOverride, getWidgetOverrideNames, hasAttribute, hasAttribute, hasAttribute, hasAttributeOrFellow, hasBindingAnnotation, hasFellow, hasFellow, hasSubBindingAnnotation, insertBefore, invalidatePartial, isInitialized, isInvalidated, isListenerAvailable, isVisible, onChildAdded, onChildRemoved, onPageAttached, onPageDetached, onWrongValue, query, queryAll, redrawChildren, removeAttribute, removeAttribute, removeAttribute, removeCallback, removeChild, removeEventListener, removeForward, removeForward, removeRedrawCallback, removeScopeListener, removeShadowRoot, render, render, render, replace, response, response, response, service, service, sessionDidActivate, sessionWillPassivate, setAttribute, setAttribute, setAttribute, setAuService, setAutag, setClientAttribute, setClientDataAttribute, setDefinition, setDefinition, setId, setMold, setPage, setPageBefore, setParent, setStubonly, setStubonly, setSubBindingAnnotationCount, setTemplate, setVisibleDirectly, setWidgetAttribute, setWidgetClass, setWidgetListener, setWidgetOverride, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdate, smartUpdateWidgetListener, smartUpdateWidgetOverride, updateByClient, updateSubBindingAnnotationCount, willPassivate, willPassivate, willSerialize, willSerialize
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
invalidatePartial
public void invalidate()
Component
If the application is totally controlled by the server side (i.e., you don't write client codes), you rarely need to access this method.
It can be called only in the request-processing and event-processing phases. However, it is NOT allowed in the rendering phase.
invalidate
in interface Component
invalidate
in class AbstractComponent
public void redraw(java.io.Writer out) throws java.io.IOException
AbstractComponent
Default: It uses JsContentRenderer
to render all information
in JavaScript codes. For devices that don't support JavaScript,
it must override this method.
To generate all information, it first invokes
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer)
to render component's
properties,
and then AbstractComponent.redrawChildren(java.io.Writer)
to redraw children (and descendants)
(by calling their AbstractComponent.redraw(java.io.Writer)
).
If a derived class wants to render more properties, it can override
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer)
.
If a derived class renders only a subset of its children
(such as paging/cropping), it could override AbstractComponent.redrawChildren(java.io.Writer)
.
If a deriving class wants to do something before
AbstractComponent.renderProperties(org.zkoss.zk.ui.sys.ContentRenderer)
, it has to override AbstractComponent.redraw(java.io.Writer)
.
If a deriving class doesn't want to render in JavaScript codes,
it has to override AbstractComponent.redraw(java.io.Writer)
with the proper implementation
of ContentRenderer
.
redraw
in interface ComponentCtrl
redraw
in class AbstractTag
java.io.IOException
public void beforeParentChanged(Component parent)
AbstractComponent
beforeParentChanged
in interface ComponentCtrl
beforeParentChanged
in class AbstractComponent
parent
- the new parent. If null, it means detachment.ComponentCtrl.beforeParentChanged(org.zkoss.zk.ui.Component)
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