org.zkoss.zk.ui.impl
Class AbstractWebApp

java.lang.Object
  org.zkoss.zk.ui.impl.AbstractWebApp

All Implemented Interfaces:

Locator, Scope, WebAppCtrl, WebApp

Direct Known Subclasses:

SimpleWebApp

public abstract class AbstractWebApp
extends java.lang.Object
implements WebApp, WebAppCtrl

A skeletal implementation of WebApp.

Author:

tomyeh

Constructor Summary

protected

AbstractWebApp() Constructor.

Method Summary

void	destroy() Destroys this Web application.
java.lang.String	getAppName() Returns the application name, never null.
java.lang.Object	getAttribute(java.lang.String name, boolean recurse) Returns the custom attribute associated with this object.
AuDecoder	getAuDecoder() Returns the AU decoder for this Web application, or null if not assigned.
java.lang.String	getBuild() Returns the build identifier, such as 2007121316.
Configuration	getConfiguration() Returns the configuration.
DesktopCache	getDesktopCache(Session sess) Returns the desktop cache.
DesktopCacheProvider	getDesktopCacheProvider() Returns the desktop cache provider.
FailoverManager	getFailoverManager() Returns the failover manager, or null if not available.
IdGenerator	getIdGenerator() Returns the ID generator, or null if not available.
SessionCache	getSessionCache() Returns the session cache (never null).
int	getSubversion(int portion) Returns a portion of the version in an integer by specifying its index.
UiEngine	getUiEngine() Returns the UI engine for this Web application (never null).
UiFactory	getUiFactory() Returns the UI factory for this Web application (never null).
java.lang.String	getVersion() Returns the ZK version, such as "1.1.0" and "2.0.0".
boolean	hasAttribute(java.lang.String name, boolean recurse) Returns if a custom attribute is associated with this object.
void	init(java.lang.Object context, Configuration config) Initializes this Web application.
static java.lang.String	loadBuild() Loads the build identifier.
java.lang.Object	removeAttribute(java.lang.String name, boolean recurse) Removes the custom attribute associated with this scope.
void	sessionDestroyed(Session sess) Called when the native session of the specified session has been destroyed
void	sessionDidActivate(Session sess) Invokes getDesktopCacheProvider()'s DesktopCacheProvider.sessionDidActivate(org.zkoss.zk.ui.Session).
void	sessionWillPassivate(Session sess) Invokes getDesktopCacheProvider()'s DesktopCacheProvider.sessionWillPassivate(org.zkoss.zk.ui.Session).
void	setAppName(java.lang.String name) Sets the application name.
java.lang.Object	setAttribute(java.lang.String name, java.lang.Object value, boolean recurse) Sets the custom attribute associated with this scope, or the parent scope.
void	setAuDecoder(AuDecoder audec) Sets the AU decoder for this Web application.
void	setDesktopCacheProvider(DesktopCacheProvider provider) Sets the desktop provider for this Web application.
void	setFailoverManager(FailoverManager failover) Sets the failover manager for this Web application.
void	setIdGenerator(IdGenerator idgen) Sets the ID generator for this Web application.
void	setSessionCache(SessionCache cache) Sets the session cache for this Web application.
void	setUiEngine(UiEngine engine) Sets the UI engine for this Web application.
void	setUiFactory(UiFactory factory) Sets the UI factory for this Web application.

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.WebApp

getAttribute, getAttributes, getInitParameter, getInitParameterNames, getMimeType, getNativeContext, getRealPath, getResource, getResourceAsStream, getResourcePaths, getServletContext, getUpdateURI, getUpdateURI, getWebApp, log, log, removeAttribute, setAttribute

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

addScopeListener, hasAttribute, removeScopeListener

Methods inherited from interface org.zkoss.util.resource.Locator

getDirectory

Constructor Detail

AbstractWebApp

protected AbstractWebApp()

Constructor.

Note: after constructed, it is not initialized completely. For example, getConfiguration() returns null.

WebManager will initialize it later such as initializing a Configuration instance by loading zk.xml, and then calling init(java.lang.Object, org.zkoss.zk.ui.util.Configuration).

Method Detail

getAppName

public java.lang.String getAppName()

Description copied from interface: WebApp

Returns the application name, never null. Developer can set it to any name that describes his application.

Default: ZK

Specified by:

getAppName in interface WebApp

setAppName

public void setAppName(java.lang.String name)

Description copied from interface: WebApp

Sets the application name. Developer can set it to any name that describes his application.

Specified by:

setAppName in interface WebApp

getVersion

public final java.lang.String getVersion()

Description copied from interface: WebApp

Returns the ZK version, such as "1.1.0" and "2.0.0".

Specified by:

getVersion in interface WebApp

See Also:

WebApp.getSubversion(int), Utils.parseVersion(java.lang.String), Utils.compareVersion(int[], int[])

getBuild

public final java.lang.String getBuild()

Description copied from interface: WebApp

Returns the build identifier, such as 2007121316.

Each time ZK is built, a different build identifier is assigned.

Specified by:

getBuild in interface WebApp

getSubversion

public int getSubversion(int portion)

Description copied from interface: WebApp

Returns a portion of the version in an integer by specifying its index. For example, getSubversion(0) returns the so-called major version (2 in "2.4.0"), getSubversion(1) returns the so-called minor version (4 in "2.4.0"), and both getSubversion(2) and getSubversion(3) return 0.

Specified by:

getSubversion in interface WebApp

Parameters:

portion - which portion of the version; starting from 0. If you want to retrieve the major version, specify 0.

See Also:

WebApp.getVersion()

getConfiguration

public final Configuration getConfiguration()

Description copied from interface: WebApp

Returns the configuration.

Specified by:

getConfiguration in interface WebApp

getAttribute

public java.lang.Object getAttribute(java.lang.String name,
                                     boolean recurse)

Description copied from interface: Scope

Returns the custom attribute associated with this object.

Specified by:

getAttribute in interface Scope

recurse - whether to search its ancestor scope. If true and the current scope doen't define the attribute, it searches up its ancestor to see any of them has defined the specified attribute.

hasAttribute

public boolean hasAttribute(java.lang.String name,
                            boolean recurse)

Description copied from interface: Scope

Returns if a custom attribute is associated with this object.

Notice that null is a valid value, so you can tell if an attribute is associated by examining the return value of Scope.getAttribute(java.lang.String).

Specified by:

hasAttribute in interface Scope

recurse - whether to search its ancestor scope. If true and the current scope doen't define the attribute, it searches up its ancestor to see any of them has defined the specified attribute.

setAttribute

public java.lang.Object setAttribute(java.lang.String name,
                                     java.lang.Object value,
                                     boolean recurse)

Description copied from interface: Scope

Sets the custom attribute associated with this scope, or the parent scope.

Specified by:

setAttribute in interface Scope

recurse - whether to look up the parent scope for the existence of the attribute.
If recurse is true and the attribute is defined in one of its ancestor (including page), the attribute is replaced. Otherwise, it is the same as Scope.setAttribute(String,Object).

removeAttribute

public java.lang.Object removeAttribute(java.lang.String name,
                                        boolean recurse)

Description copied from interface: Scope

Removes the custom attribute associated with this scope.

Specified by:

removeAttribute in interface Scope

recurse - whether to look up the parent scope for the existence of the attribute.
If recurse is true and the attribute is defined in one of its ancestor (including page), the attribute is removed. Otherwise, it is the same as Scope.removeAttribute(String).

init

public void init(java.lang.Object context,
                 Configuration config)

Description copied from interface: WebAppCtrl

Initializes this Web application.

Specified by:

init in interface WebAppCtrl

Parameters:

context - the servlet context, if servlets are used. Currently, ZK supports only servlets. In the future there might be more to support.

config - the configuration (never null)

destroy

public void destroy()

Description copied from interface: WebAppCtrl

Destroys this Web application.

Note; once destroyed, this instance cannot be used anymore.

Specified by:

destroy in interface WebAppCtrl

getUiEngine

public final UiEngine getUiEngine()

Description copied from interface: WebAppCtrl

Returns the UI engine for this Web application (never null).

Specified by:

getUiEngine in interface WebAppCtrl

setUiEngine

public void setUiEngine(UiEngine engine)

Description copied from interface: WebAppCtrl

Sets the UI engine for this Web application. The UI engine is stateful so it is not safe to change it if there are active sessions.

Specified by:

setUiEngine in interface WebAppCtrl

Parameters:

engine - the UI engine

getDesktopCache

public DesktopCache getDesktopCache(Session sess)

Description copied from interface: WebAppCtrl

Returns the desktop cache. A shortcut of WebAppCtrl.getDesktopCacheProvider()'s DesktopCacheProvider.getDesktopCache(org.zkoss.zk.ui.Session).

Specified by:

getDesktopCache in interface WebAppCtrl

getDesktopCacheProvider

public DesktopCacheProvider getDesktopCacheProvider()

Description copied from interface: WebAppCtrl

Returns the desktop cache provider.

Specified by:

getDesktopCacheProvider in interface WebAppCtrl

setDesktopCacheProvider

public void setDesktopCacheProvider(DesktopCacheProvider provider)

Description copied from interface: WebAppCtrl

Sets the desktop provider for this Web application.

Specified by:

setDesktopCacheProvider in interface WebAppCtrl

Parameters:

provider - the desktop cache provider

getUiFactory

public UiFactory getUiFactory()

Description copied from interface: WebAppCtrl

Returns the UI factory for this Web application (never null).

Specified by:

getUiFactory in interface WebAppCtrl

setUiFactory

public void setUiFactory(UiFactory factory)

Description copied from interface: WebAppCtrl

Sets the UI factory for this Web application.

Specified by:

setUiFactory in interface WebAppCtrl

Parameters:

factory - the UI factory

getFailoverManager

public FailoverManager getFailoverManager()

Description copied from interface: WebAppCtrl

Returns the failover manager, or null if not available.

Specified by:

getFailoverManager in interface WebAppCtrl

setFailoverManager

public void setFailoverManager(FailoverManager failover)

Description copied from interface: WebAppCtrl

Sets the failover manager for this Web application.

Specified by:

setFailoverManager in interface WebAppCtrl

Parameters:

failover - the failover manager. If null, it means no failover manager at all.

getIdGenerator

public IdGenerator getIdGenerator()

Description copied from interface: WebAppCtrl

Returns the ID generator, or null if not available.

Specified by:

getIdGenerator in interface WebAppCtrl

setIdGenerator

public void setIdGenerator(IdGenerator idgen)

Description copied from interface: WebAppCtrl

Sets the ID generator for this Web application.

Specified by:

setIdGenerator in interface WebAppCtrl

Parameters:

idgen - the ID generator. If null, it means no (custom) ID generator at all.

getSessionCache

public SessionCache getSessionCache()

Description copied from interface: WebAppCtrl

Returns the session cache (never null). The session cache is used to store ZK sessions.

Specified by:

getSessionCache in interface WebAppCtrl

setSessionCache

public void setSessionCache(SessionCache cache)

Description copied from interface: WebAppCtrl

Sets the session cache for this Web application.

Specified by:

setSessionCache in interface WebAppCtrl

Parameters:

cache - the session cache

getAuDecoder

public AuDecoder getAuDecoder()

Description copied from interface: WebAppCtrl

Returns the AU decoder for this Web application, or null if not assigned.

Specified by:

getAuDecoder in interface WebAppCtrl

setAuDecoder

public void setAuDecoder(AuDecoder audec)

Description copied from interface: WebAppCtrl

Sets the AU decoder for this Web application.

Default: null (using the system default).

Specified by:

setAuDecoder in interface WebAppCtrl

sessionWillPassivate

public void sessionWillPassivate(Session sess)

Invokes getDesktopCacheProvider()'s DesktopCacheProvider.sessionWillPassivate(org.zkoss.zk.ui.Session).

Specified by:

sessionWillPassivate in interface WebAppCtrl

sessionDidActivate

public void sessionDidActivate(Session sess)

Invokes getDesktopCacheProvider()'s DesktopCacheProvider.sessionDidActivate(org.zkoss.zk.ui.Session).

Specified by:

sessionDidActivate in interface WebAppCtrl

sessionDestroyed

public void sessionDestroyed(Session sess)

Description copied from interface: WebAppCtrl

Called when the native session of the specified session has been destroyed

Specified by:

sessionDestroyed in interface WebAppCtrl

loadBuild

public static java.lang.String loadBuild()

Loads the build identifier. This method is used only Internally