Package org.zkoss.zk.ui

Class AbstractPage

java.lang.Object

org.zkoss.zk.ui.AbstractPage

All Implemented Interfaces:

Serializable, org.zkoss.lang.ClassResolver, Scope, IdSpace, Page, PageCtrl

Direct Known Subclasses:

PageImpl

public abstract class AbstractPage
extends Object
implements Page, PageCtrl, Serializable

A skeletal implementation of Page.

Since:

3.5.2

Author:

tomyeh

See Also:

• Serialized Form

Field Summary

Fields inherited from interface org.zkoss.zk.ui.Page

APPLICATION_SCOPE, DESKTOP_SCOPE, PAGE_SCOPE, REQUEST_SCOPE, SESSION_SCOPE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractPage()

Method Summary

Modifier and Type	Method	Description
void	destroy()	Called when this page is about to be destroyed.
Component	getFellow(String compId)	Returns a component of the specified ID in this ID space.
Component	getFellow(String compId, boolean recurse)	The same as getFellow(String).
Component	getFellowIfAny(String compId)	Returns a component of the specified ID in this ID space, or null if not found.
Component	getFellowIfAny(String compId, boolean recurse)	The same as getFellowIfAny(String).
Collection<Component>	getFellows()	Returns all fellows in this ID space.
Component	getFirstRoot()	Returns the first root component.
Component	getLastRoot()	Returns the last root component.
Collection<Component>	getRoots()	Returns a readonly list of the root components.
boolean	hasFellow(String compId)	Returns whether there is a fellow named with the specified component ID.
boolean	hasFellow(String compId, boolean recurse)	The same as hasFellow(String).
void	removeComponents()	Removes all components in this page.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.zkoss.zk.ui.Page

addClassResolver, addEventListener, addFunctionMapper, addTemplate, addVariableResolver, getAttribute, getAttribute, getAttributeOrFellow, getAttributes, getAttributes, getComponentDefinition, getComponentDefinition, getComponentDefinitionMap, getDesktop, getEventListeners, getExpressionFactoryClass, getFunctionMapper, getId, getInterpreter, getLanguageDefinition, getLoadedInterpreters, getRequestPath, getStyle, getTemplate, getTitle, getUuid, getViewport, getXelVariable, getXelVariable, getZScriptClass, getZScriptFunction, getZScriptFunction, getZScriptLanguage, getZScriptVariable, getZScriptVariable, hasAttribute, hasAttribute, hasAttributeOrFellow, hasFunctionMapper, hasVariableResolver, interpret, invalidate, isAlive, isComplete, isListenerAvailable, removeAttribute, removeAttribute, removeEventListener, removeFunctionMapper, removeTemplate, removeVariableResolver, resolveClass, setAttribute, setAttribute, setComplete, setExpressionFactoryClass, setId, setStyle, setTitle, setViewport, setZScriptLanguage

Methods inherited from interface org.zkoss.zk.ui.sys.PageCtrl

addAfterHeadTags, addBeforeHeadTags, addDeferredZScript, getAfterHeadTags, getAutomaticTimeout, getBeforeHeadTags, getCacheable, getContentType, getDocType, getFirstLine, getOwner, getResponseHeaders, getRootAttributes, getWidgetClass, init, preInit, redraw, sessionDidActivate, sessionWillPassivate, setAutomaticTimeout, setCacheable, setContentType, setDocType, setFirstLine, setOwner, setRootAttributes, setWidgetClass

Methods inherited from interface org.zkoss.zk.ui.ext.Scope

addScopeListener, getAttribute, hasAttribute, removeAttribute, removeScopeListener, setAttribute

Constructor Details

AbstractPage

protected AbstractPage()

Method Details

getFirstRoot

public Component getFirstRoot()

Description copied from interface: Page

Returns the first root component.

Specified by:

getFirstRoot in interface Page

getLastRoot

public Component getLastRoot()

Description copied from interface: Page

Returns the last root component.

Specified by:

getLastRoot in interface Page

hasFellow

public boolean hasFellow(String compId)

Description copied from interface: IdSpace

Returns whether there is a fellow named with the specified component ID.

Specified by:

hasFellow in interface IdSpace

hasFellow

public boolean hasFellow(String compId,
 boolean recurse)

The same as hasFellow(String). In other words, the recurse parameter is not applicable.

Specified by:

hasFellow in interface IdSpace

recurse - whether to look up the parent ID space for the existence of the fellow

Since:

5.0.0

getFellow

public Component getFellow(String compId)
                    throws ComponentNotFoundException

Description copied from interface: IdSpace

Returns a component of the specified ID in this ID space. Components in the same ID space are called fellows.

Unlike IdSpace.getFellowIfAny(String), it throws ComponentNotFoundException if not found.

Specified by:

getFellow in interface IdSpace

Throws:

ComponentNotFoundException - is thrown if this component doesn't belong to any ID space

getFellow

public Component getFellow(String compId,
 boolean recurse)
                    throws ComponentNotFoundException

The same as getFellow(String). In other words, the recurse parameter is not applicable.

Specified by:

getFellow in interface IdSpace

recurse - whether to look up the parent ID space for the existence of the fellow

Throws:

ComponentNotFoundException - is thrown if this component doesn't belong to any ID space

Since:

5.0.0

getFellowIfAny

public Component getFellowIfAny(String compId)

Description copied from interface: IdSpace

Returns a component of the specified ID in this ID space, or null if not found.

Unlike IdSpace.getFellow(String), it returns null if not found.

Specified by:

getFellowIfAny in interface IdSpace

getFellowIfAny

public Component getFellowIfAny(String compId,
 boolean recurse)

The same as getFellowIfAny(String). In other words, the recurse parameter is not applicable.

Specified by:

getFellowIfAny in interface IdSpace

recurse - whether to look up the parent ID space for the existence of the fellow

Since:

5.0.0

getFellows

public Collection<Component> getFellows()

Description copied from interface: IdSpace

Returns all fellows in this ID space. The returned collection is readonly.

Specified by:

getFellows in interface IdSpace

getRoots

public Collection<Component> getRoots()

Description copied from interface: Page

Returns a readonly list of the root components.

Specified by:

getRoots in interface Page

removeComponents

public void removeComponents()

Description copied from interface: Page

Removes all components in this page.

Specified by:

removeComponents in interface Page

See Also:

• Execution.createComponents(String,Component,Map)

destroy

public void destroy()

Description copied from interface: PageCtrl

Called when this page is about to be destroyed. It is called by desktop, after removing it from the desktop.

Specified by:

destroy in interface PageCtrl