public abstract class Application
extends java.lang.Object
Application represents a per-web-application singleton object where applications based on Jakarta Faces (or implementations wishing to provide extended functionality) can register application-wide singletons that provide functionality required by Jakarta Faces. Default implementations of each object are provided for cases where the application does not choose to customize the behavior.
The instance of Application
is created by calling the getApplication()
method of
ApplicationFactory
. Because this instance is shared, it must be implemented in a thread-safe manner.
The application also acts as a factory for several types of Objects specified in the Faces Configuration file. Please
see createComponent(java.lang.String)
, createConverter(java.lang.String)
, and
createValidator(java.lang.String)
.
Constructor and Description |
---|
Application() |
Modifier and Type | Method and Description |
---|---|
void |
addBehavior(java.lang.String behaviorId,
java.lang.String behaviorClass)
Register a new mapping of behavior id to the name of the corresponding
Behavior class. |
abstract void |
addComponent(java.lang.String componentType,
java.lang.String componentClass)
Register a new mapping of component type to the name of the corresponding
UIComponent class. |
abstract void |
addConverter(java.lang.Class<?> targetClass,
java.lang.String converterClass)
Register a new converter class that is capable of performing conversions for the specified target class.
|
abstract void |
addConverter(java.lang.String converterId,
java.lang.String converterClass)
Register a new mapping of converter id to the name of the corresponding
Converter class. |
void |
addDefaultValidatorId(java.lang.String validatorId)
Register a validator by its id that is applied to all |
void |
addELContextListener(ELContextListener listener)
Provide a way for Faces applications to register an
ELContextListener that will be notified on creation
of ELContext instances. |
void |
addELResolver(ELResolver resolver)
Cause an the argument
resolver to be added to the
resolver chain as specified in section 5.3.2 "ELResolver" of the Jakarta Faces Specification Document. |
void |
addSearchKeywordResolver(SearchKeywordResolver resolver)
Cause the argument |
abstract void |
addValidator(java.lang.String validatorId,
java.lang.String validatorClass)
Register a new mapping of validator id to the name of the corresponding
Validator class. |
Behavior |
createBehavior(java.lang.String behaviorId)
Instantiate and return a new
Behavior instance of the class specified
by a previous call to addBehavior() for the specified behavior id. |
UIComponent |
createComponent(FacesContext context,
Resource componentResource)
Instantiate and return a new |
UIComponent |
createComponent(FacesContext context,
java.lang.String componentType,
java.lang.String rendererType)
Like |
abstract UIComponent |
createComponent(java.lang.String componentType)
Instantiate and return a new
UIComponent instance of the class
specified by a previous call to addComponent() for the specified component type. |
UIComponent |
createComponent(ValueExpression componentExpression,
FacesContext context,
java.lang.String componentType)
|
UIComponent |
createComponent(ValueExpression componentExpression,
FacesContext context,
java.lang.String componentType,
java.lang.String rendererType)
Like |
abstract Converter |
createConverter(java.lang.Class<?> targetClass)
Instantiate and return a new
Converter instance of the class that
has registered itself as capable of performing conversions for objects of the specified type. |
abstract Converter |
createConverter(java.lang.String converterId)
Instantiate and return a new
Converter instance of the class
specified by a previous call to addConverter() for the specified converter id. |
abstract Validator |
createValidator(java.lang.String validatorId)
Instantiate and return a new
Validator instance of the class
specified by a previous call to addValidator() for the specified validator id. |
<T> T |
evaluateExpressionGet(FacesContext context,
java.lang.String expression,
java.lang.Class<? extends T> expectedType)
Get a value by evaluating an expression.
|
abstract ActionListener |
getActionListener()
Return the default
ActionListener to be registered for all
ActionSource components in this application. |
java.util.Iterator<java.lang.String> |
getBehaviorIds()
Return an
Iterator over the set of currently registered behavior ids for this Application . |
abstract java.util.Iterator<java.lang.String> |
getComponentTypes()
Return an
Iterator over the set of currently defined component types for this Application . |
abstract java.util.Iterator<java.lang.String> |
getConverterIds()
Return an
Iterator over the set of currently registered converter ids for this Application . |
abstract java.util.Iterator<java.lang.Class<?>> |
getConverterTypes()
Return an
Iterator over the set of Class instances for which Converter classes have
been explicitly registered. |
abstract java.util.Locale |
getDefaultLocale()
Return the default
Locale for this application. |
abstract java.lang.String |
getDefaultRenderKitId()
Return the
renderKitId to be used for rendering this application. |
java.util.Map<java.lang.String,java.lang.String> |
getDefaultValidatorInfo()
Return an immutable |
ELContextListener[] |
getELContextListeners()
If no calls have been made to
addELContextListener(jakarta.el.ELContextListener) , this method must return an empty array. |
ELResolver |
getELResolver()
Return the singleton
ELResolver instance to be used for all Jakarta Expression Language resolution. |
ExpressionFactory |
getExpressionFactory()
Return the
ExpressionFactory instance for this application. |
FlowHandler |
getFlowHandler()
Return the thread-safe singleton |
abstract java.lang.String |
getMessageBundle()
Return the fully qualified class name of the
ResourceBundle to be used for Jakarta Faces messages
for this application. |
abstract NavigationHandler |
getNavigationHandler()
Return the
NavigationHandler instance that will be passed the outcome returned by any invoked application
action for this web application. |
ProjectStage |
getProjectStage()
Return the project stage for the currently running application instance. |
java.util.ResourceBundle |
getResourceBundle(FacesContext ctx,
java.lang.String name)
Find a
ResourceBundle as defined in the application configuration resources under the specified name. |
ResourceHandler |
getResourceHandler()
Return the singleton, stateless, thread-safe |
SearchExpressionHandler |
getSearchExpressionHandler()
Return the thread-safe singleton |
SearchKeywordResolver |
getSearchKeywordResolver()
Return the singleton |
abstract StateManager |
getStateManager()
Return the
StateManager instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. |
abstract java.util.Iterator<java.util.Locale> |
getSupportedLocales()
Return an
Iterator over the supported Locale s for this appication. |
abstract java.util.Iterator<java.lang.String> |
getValidatorIds()
Return an
Iterator over the set of currently registered validator ids for this Application . |
abstract ViewHandler |
getViewHandler()
Return the
ViewHandler instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. |
void |
publishEvent(FacesContext context,
java.lang.Class<? extends SystemEvent> systemEventClass,
java.lang.Class<?> sourceBaseType,
java.lang.Object source)
This method functions exactly like |
void |
publishEvent(FacesContext context,
java.lang.Class<? extends SystemEvent> systemEventClass,
java.lang.Object source)
If |
void |
removeELContextListener(ELContextListener listener)
Remove the argument
listener from the list of ELContextListener s. |
abstract void |
setActionListener(ActionListener listener)
Set the default
ActionListener to be registered for all ActionSource
components. |
abstract void |
setDefaultLocale(java.util.Locale locale)
Set the default
Locale for this application. |
abstract void |
setDefaultRenderKitId(java.lang.String renderKitId)
Set the
renderKitId to be used to render this application. |
void |
setFlowHandler(FlowHandler newHandler)
Set the |
abstract void |
setMessageBundle(java.lang.String bundle)
Set the fully qualified class name of the
ResourceBundle to be used for Jakarta Faces messages
for this application. |
abstract void |
setNavigationHandler(NavigationHandler handler)
Set the
NavigationHandler instance that will be passed the outcome returned by any invoked application action
for this web application. |
void |
setResourceHandler(ResourceHandler resourceHandler)
Set the |
void |
setSearchExpressionHandler(SearchExpressionHandler searchExpressionHandler)
Set the |
abstract void |
setStateManager(StateManager manager)
Set the
StateManager instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. |
abstract void |
setSupportedLocales(java.util.Collection<java.util.Locale> locales)
Set the
Locale instances representing the supported Locale s for this application. |
abstract void |
setViewHandler(ViewHandler handler)
Set the
ViewHandler instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. |
void |
subscribeToEvent(java.lang.Class<? extends SystemEvent> systemEventClass,
java.lang.Class<?> sourceClass,
SystemEventListener listener)
Install the listener instance referenced by argument |
void |
subscribeToEvent(java.lang.Class<? extends SystemEvent> systemEventClass,
SystemEventListener listener)
Install the listener instance referenced by argument |
void |
unsubscribeFromEvent(java.lang.Class<? extends SystemEvent> systemEventClass,
java.lang.Class<?> sourceClass,
SystemEventListener listener)
Remove the listener instance referenced by argument |
void |
unsubscribeFromEvent(java.lang.Class<? extends SystemEvent> systemEventClass,
SystemEventListener listener)
Remove the listener instance referenced by argument |
public abstract ActionListener getActionListener()
Return the default ActionListener
to be registered for all
ActionSource
components in this application. If not explicitly set, a default
implementation must be provided that performs the functions as specified in the
section 7.1.1 "ActionListener Property" in the chapter 7 "Application Integration" of the Jakarta Faces Specification Document.
Note that the specification for the default ActionListener
contiues to call for the use of a
deprecated property (action
) and class (MethodBinding
). Unfortunately,
this is necessary because the default ActionListener
must continue to work with components that do not
implement ActionSource2
, and only implement
ActionSource
.
public abstract void setActionListener(ActionListener listener)
Set the default ActionListener
to be registered for all ActionSource
components.
listener
- The new default ActionListener
java.lang.NullPointerException
- if listener
is null
public abstract java.util.Locale getDefaultLocale()
Return the default Locale
for this application. If not explicitly set, null
is returned.
null
.public abstract void setDefaultLocale(java.util.Locale locale)
Set the default Locale
for this application.
locale
- The new default Locale
java.lang.NullPointerException
- if locale
is null
public abstract java.lang.String getDefaultRenderKitId()
Return the renderKitId
to be used for rendering this application. If not explicitly set,
null
is returned.
null
.public abstract void setDefaultRenderKitId(java.lang.String renderKitId)
Set the renderKitId
to be used to render this application. Unless the client has provided a custom
ViewHandler
that supports the use of multiple RenderKit
instances in the same
application, this method must only be called at application startup, before any Faces requests have been processed.
This is a limitation of the current Specification, and may be lifted in a future release.
renderKitId
- the render kit id to set.public abstract java.lang.String getMessageBundle()
Return the fully qualified class name of the ResourceBundle
to be used for Jakarta Faces messages
for this application. If not explicitly set, null
is returned.
null
.public abstract void setMessageBundle(java.lang.String bundle)
Set the fully qualified class name of the ResourceBundle
to be used for Jakarta Faces messages
for this application. See the JavaDocs for the java.util.ResourceBundle
class for more information about
the syntax for resource bundle names.
bundle
- Base name of the resource bundle to be usedjava.lang.NullPointerException
- if bundle
is null
public abstract NavigationHandler getNavigationHandler()
Return the NavigationHandler
instance that will be passed the outcome returned by any invoked application
action for this web application. If not explicitly set, a default implementation must be provided that performs the
functions described in the NavigationHandler
class description.
NavigationHandler
implementation is declared in the application configuration resources by
giving the fully qualified class name as the value of the <navigation-handler>
element within the
<application>
element.The runtime must employ the decorator pattern as for every other pluggable artifact in Jakarta Faces.
public abstract void setNavigationHandler(NavigationHandler handler)
Set the NavigationHandler
instance that will be passed the outcome returned by any invoked application action
for this web application.
handler
- The new NavigationHandler
instancejava.lang.NullPointerException
- if handler
is null
public ResourceHandler getResourceHandler()
Return the singleton, stateless, thread-safe ResourceHandler
for this application. The Jakarta Faces
implementation must support the following techniques for declaring an alternate implementation of
ResourceHandler
.
The ResourceHandler
implementation is declared in the application configuration resources by giving the
fully qualified class name as the value of the <resource-handler>
element within the
<application>
element.
In all of the above cases, the runtime must employ the decorator pattern as for every other pluggable artifact in Jakarta Faces.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
public void setResourceHandler(ResourceHandler resourceHandler)
Set the ResourceHandler
instance that will be utilized for rendering the markup for resources, and for
satisfying client requests to serve up resources.
resourceHandler
- The new ResourceHandler
instancejava.lang.IllegalStateException
- if this method is called after at least one request has been processed by the
Lifecycle
instance for this application.java.lang.NullPointerException
- if resourceHandler
is null
public java.util.ResourceBundle getResourceBundle(FacesContext ctx, java.lang.String name)
Find a ResourceBundle
as defined in the application configuration resources under the specified name. If
a ResourceBundle
was defined for the name, return an instance that uses the locale of the current
UIViewRoot
.
The default implementation throws UnsupportedOperationException
and is provided for the sole purpose of
not breaking existing applications that extend this class.
ctx
- the Faces context.name
- the name of the resource bundle.FacesException
- if a bundle was defined, but not resolvablejava.lang.NullPointerException
- if ctx == null || name == nullpublic ProjectStage getProjectStage()
Return the project stage for the currently running application instance. The default value is
ProjectStage.Production
The implementation of this method must perform the following algorithm or an equivalent with the same end result to determine the value to return.
If the value has already been determined by a previous call to this method, simply return that value.
Look for a
JNDI
environment entry under the key given by the value ofProjectStage.PROJECT_STAGE_JNDI_NAME
(return type ofjava.lang.String
). If found, continue with the algorithm below, otherwise, look for an entry in theinitParamMap
of theExternalContext
from the currentFacesContext
with the key given by the value ofProjectStage.PROJECT_STAGE_PARAM_NAME
If a value is found, see if an enum constant can be obtained by calling
ProjectStage.valueOf()
, passing the value from theinitParamMap
. If this succeeds without exception, save the value and return it.If not found, or any of the previous attempts to discover the enum constant value have failed, log a descriptive error message, assign the value as
ProjectStage.Production
and return it.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
public void addELResolver(ELResolver resolver)
Cause an the argument resolver
to be added to the
resolver chain as specified in section 5.3.2 "ELResolver" of the Jakarta Faces Specification Document.
It is not possible to remove an ELResolver
registered with this method, once it has been registered.
It is illegal to register an ELResolver
after the application has received any requests from the client.
If an attempt is made to register a listener after that time, an IllegalStateException
must be thrown.
This restriction is in place to allow the Jakarta Server Pages container to optimize for the common case where no
additional ELResolver
s are in the chain, aside from the standard ones. It is permissible to add
ELResolver
s before or after initialization to a CompositeELResolver
that is already in the
chain.
The default implementation throws UnsupportedOperationException
and is provided for the sole purpose of
not breaking existing applications that extend Application
.
resolver
- the Jakarta Expression Language resolver to add.java.lang.IllegalStateException
- if called after the first request to the
FacesServlet
has been serviced.public ELResolver getELResolver()
Return the singleton ELResolver
instance to be used for all Jakarta Expression Language resolution. This is
actually an instance of CompositeELResolver
that must contain the following
ELResolver
instances in the following order:
ELResolver
instances declared using the <el-resolver> element in the application configuration
resources.
An implementation
that wraps the head of the legacy VariableResolver
chain, as per section
VariableResolver ChainWrapper in Chapter 5 in the spec document.
An implementation
that wraps the head of the legacy PropertyResolver
chain, as per section
PropertyResolver ChainWrapper in Chapter 5 in the spec document.
Any ELResolver
instances added by calls to addELResolver(jakarta.el.ELResolver)
.
The default implementation throws UnsupportedOperationException
and is provided for the sole purpose of
not breaking existing applications that extend Application
.
public FlowHandler getFlowHandler()
Return the thread-safe singleton FlowHandler
for this application. For implementations declaring compliance
with version 2.2 of the specification, this method must never return null
, even if the application has no
flows. This is necessary to enable dynamic flow creation during the application's lifetime.
All implementations that declare compliance with version 2.2 of the specification must implement this method. For the
purpose of backward compatibility with environments that extend Application
but do not override this method, an implementation is provided that returns null
. Due to the
decoratable nature of Application
, code calling this method should always check for a null
return.
public void setFlowHandler(FlowHandler newHandler)
Set the FlowHandler
instance used by the NavigationHandler
to satisfy the requirements of the faces
flows feature.
newHandler
- the flow handler to set.java.lang.NullPointerException
- if newHandler is null
java.lang.IllegalStateException
- if this method is called after at least one request has been processed by the
Lifecycle
instance for this application.public abstract ViewHandler getViewHandler()
Return the ViewHandler
instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. If not explicitly set, a default implementation must be
provided that performs the functions described in the ViewHandler
description in the Jakarta Faces
Specification.
public abstract void setViewHandler(ViewHandler handler)
Set the ViewHandler
instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle.
handler
- The new ViewHandler
instancejava.lang.IllegalStateException
- if this method is called after at least one request has been processed by the
Lifecycle
instance for this application.java.lang.NullPointerException
- if handler
is null
public abstract StateManager getStateManager()
Return the StateManager
instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle. If not explicitly set, a default implementation must be
provided that performs the functions described in the StateManager
description in the Jakarta Faces
Specification.
public abstract void setStateManager(StateManager manager)
Set the StateManager
instance that will be utilized during the Restore View and Render
Response phases of the request processing lifecycle.
manager
- The new StateManager
instancejava.lang.IllegalStateException
- if this method is called after at least one request has been processed by the
Lifecycle
instance for this application.java.lang.NullPointerException
- if manager
is null
public void addBehavior(java.lang.String behaviorId, java.lang.String behaviorClass)
Register a new mapping of behavior id to the name of the corresponding
Behavior
class. This allows subsequent calls to createBehavior()
to serve as a factory for
Behavior
instances.
behaviorId
- The behavior id to be registeredbehaviorClass
- The fully qualified class name of the corresponding Behavior
implementationjava.lang.NullPointerException
- if behaviorId
or behaviorClass
is null
public Behavior createBehavior(java.lang.String behaviorId) throws FacesException
Instantiate and return a new Behavior
instance of the class specified
by a previous call to addBehavior()
for the specified behavior id.
behaviorId
- The behavior id for which to create and return a new Behavior
instanceFacesException
- if the Behavior
cannot be createdjava.lang.NullPointerException
- if behaviorId
is null
public java.util.Iterator<java.lang.String> getBehaviorIds()
Return an Iterator
over the set of currently registered behavior ids for this Application
.
public abstract void addComponent(java.lang.String componentType, java.lang.String componentClass)
Register a new mapping of component type to the name of the corresponding UIComponent
class. This allows
subsequent calls to createComponent()
to serve as a factory for UIComponent
instances.
componentType
- The component type to be registeredcomponentClass
- The fully qualified class name of the corresponding UIComponent
implementationjava.lang.NullPointerException
- if componentType
or componentClass
is null
public abstract UIComponent createComponent(java.lang.String componentType) throws FacesException
Instantiate and return a new UIComponent
instance of the class
specified by a previous call to addComponent()
for the specified component type.
Before the component instance is returned, it must be inspected for the presence of a
ListenerFor
(or ListenersFor
) or ResourceDependency
(or ResourceDependencies
) annotation. If any of these annotations are present, the action listed in
ListenerFor
or ResourceDependency
must be taken on the component, before it is
returned from this method. This variant of createComponent
must not inspect the
Renderer
for the component to be returned for any of the afore mentioned annotations.
Such inspection is the province of createComponent(ValueExpression, FacesContext, String, String)
or
createComponent(FacesContext, String, String)
.
componentType
- The component type for which to create and return a new UIComponent
instanceFacesException
- if a UIComponent
of the specified type cannot be createdjava.lang.NullPointerException
- if componentType
is null
public UIComponent createComponent(ValueExpression componentExpression, FacesContext context, java.lang.String componentType) throws FacesException
Call the getValue()
method on the specified
ValueExpression
. If it returns a UIComponent
instance, return it as the value of this method. If it
does not, instantiate a new UIComponent
instance of the specified component type, pass the new component to
the setValue()
method of the specified ValueExpression
, and return it.
Before the component instance is returned, it must be inspected for the presence of a
ListenerFor
(or ListenersFor
) or ResourceDependency
(or ResourceDependencies
) annotation. If any of these annotations are present, the action listed in
ListenerFor
or ResourceDependency
must be taken on the component, before it is
returned from this method. This variant of createComponent
must not inspect the
Renderer
for the component to be returned for any of the afore mentioned annotations.
Such inspection is the province of createComponent(ValueExpression, FacesContext, String, String)
or
createComponent(FacesContext, String, String)
.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function.
componentExpression
- ValueExpression
representing a component value expression (typically specified by
the component
attribute of a custom tag)context
- FacesContext
for the current requestcomponentType
- Component type to create if the ValueExpression
does not return a component instanceFacesException
- if a UIComponent
cannot be createdjava.lang.NullPointerException
- if any parameter is null
public UIComponent createComponent(ValueExpression componentExpression, FacesContext context, java.lang.String componentType, java.lang.String rendererType)
Like createComponent(ValueExpression, FacesContext, String)
except the Renderer
for the
component to be returned must be inspected for the annotations mentioned in
createComponent(ValueExpression, FacesContext, String)
as specified in the documentation for that method.
The Renderer
instance to inspect must be obtained by calling FacesContext.getRenderKit()
and
calling RenderKit.getRenderer(java.lang.String, java.lang.String)
on the result, passing the argument
componentType
as the first argument and the result of calling UIComponent.getFamily()
on the newly
created component as the second argument. If no such Renderer
can be found, a message must be logged
with a helpful error message. Otherwise, UIComponent.setRendererType(java.lang.String)
must be called on the newly created
UIComponent
instance, passing the argument rendererType
as the argument.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function.
componentExpression
- ValueExpression
representing a component value expression (typically specified by
the component
attribute of a custom tag)context
- FacesContext
for the current requestcomponentType
- Component type to create if the ValueExpression
does not return a component instancerendererType
- The renderer-type of the Renderer
that will render this component. A
null
value must be accepted for this parameter.FacesException
- if a UIComponent
cannot be createdjava.lang.NullPointerException
- if any of the parameters componentExpression
, context
, or
componentType
are null
public UIComponent createComponent(FacesContext context, java.lang.String componentType, java.lang.String rendererType)
Like createComponent(String)
except the Renderer
for the component to be returned must be
inspected for the annotations mentioned in createComponent(ValueExpression, FacesContext, String)
as
specified in the documentation for that method. The Renderer
instance to inspect must be obtained by
calling FacesContext.getRenderKit()
and calling RenderKit.getRenderer(java.lang.String, java.lang.String)
on the
result, passing the argument componentType
as the first argument and the result of calling
UIComponent.getFamily()
on the newly created component as the second argument. If no such Renderer
can be found, a message must be logged with a helpful error message. Otherwise, UIComponent.setRendererType(java.lang.String)
must be called on the newly created UIComponent
instance, passing the argument rendererType
as the argument.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
context
- FacesContext
for the current requestcomponentType
- Component type to createrendererType
- The renderer-type of the Renderer
that will render this component. A
null
value must be accepted for this parameter.FacesException
- if a UIComponent
cannot be createdjava.lang.NullPointerException
- if any of the parameters context
, or componentType
are
null
public UIComponent createComponent(FacesContext context, Resource componentResource)
Instantiate and return a new UIComponent
instance from the
argument Resource
. An algorithm semantically equivalent to the following must be followed to instantiate the
UIComponent
to return.
Obtain a reference to the ViewDeclarationLanguage
for this Application
instance by calling
ViewHandler.getViewDeclarationLanguage(jakarta.faces.context.FacesContext, java.lang.String)
, passing the viewId
found by calling
UIViewRoot.getViewId()
on the UIViewRoot
in the
argument FacesContext
.
Obtain a reference to the composite component metadata for this composite component by calling
ViewDeclarationLanguage.getComponentMetadata(jakarta.faces.context.FacesContext, jakarta.faces.application.Resource)
, passing the facesContext
and
componentResource
arguments to this method. This version of the Jakarta Faces Specification uses
JavaBeans as the API to the component metadata.
Determine if the component author declared a componentType
for this component instance by obtaining the
BeanDescriptor
from the component metadata and calling its getValue()
method, passing
UIComponent.COMPOSITE_COMPONENT_TYPE_KEY
as the argument. If non-null
, the result must be a
ValueExpression
whose value is the component-type
of the UIComponent
to be
created for this Resource
component. Call through to createComponent(java.lang.String)
to
create the component.
Otherwise, determine if a script based component for this Resource
can be found by calling
ViewDeclarationLanguage.getScriptComponentResource(jakarta.faces.context.FacesContext, jakarta.faces.application.Resource)
. If the result is non-null
, and is a script
written in a language satisfying the content type text/javascript
, create a
UIComponent
instance from the script resource.
Otherwise, let library-name be the return from calling Resource.getLibraryName()
on the argument
componentResource
and resource-name be the return from calling Resource.getResourceName()
on the argument componentResource
. Create a fully qualified Java class name by removing any file
extension from resource-name and let fqcn be library-name + "." +
resource-name
. If a class with the name of fqcn cannot be found, take no action and continue
to the next step. If any of InstantiationException
, IllegalAccessException
, or
ClassCastException
are thrown, wrap the exception in a FacesException
and re-throw it. If
any other exception is thrown, log the exception and continue to the next step.
If none of the previous steps have yielded a UIComponent
instance, call
createComponent(java.lang.String)
passing "jakarta.faces.NamingContainer
" as the argument.
Call UIComponent.setRendererType(java.lang.String)
on the UIComponent
instance, passing
"jakarta.faces.Composite
" as the argument.
Store the argument Resource
in the attributes Map
of the UIComponent
under the
key, Resource.COMPONENT_RESOURCE_KEY
.
Store composite component metadata in the attributes Map
of the UIComponent
under
the key, UIComponent.BEANINFO_KEY
.
Before the component instance is returned, it must be inspected for the presence of a
ListenerFor
annotation. If this annotation is present, the action listed in
ListenerFor
must be taken on the component, before it is returned from this method.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function.
context
- FacesContext
for the current requestcomponentResource
- A Resource
that points to a source file that provides an implementation of a
component.FacesException
- if a UIComponent
from the Resource
cannot be createdjava.lang.NullPointerException
- if any parameter is null
java.lang.NullPointerException
- if unable, for any reason, to obtain a ViewDeclarationLanguage
instance as
described above.public abstract java.util.Iterator<java.lang.String> getComponentTypes()
Return an Iterator
over the set of currently defined component types for this Application
.
public abstract void addConverter(java.lang.String converterId, java.lang.String converterClass)
Register a new mapping of converter id to the name of the corresponding Converter
class. This allows
subsequent calls to createConverter()
to serve as a factory for Converter
instances.
converterId
- The converter id to be registeredconverterClass
- The fully qualified class name of the corresponding Converter
implementationjava.lang.NullPointerException
- if converterId
or converterClass
is null
public abstract void addConverter(java.lang.Class<?> targetClass, java.lang.String converterClass)
Register a new converter class that is capable of performing conversions for the specified target class.
targetClass
- The class for which this converter is registeredconverterClass
- The fully qualified class name of the corresponding Converter
implementationjava.lang.NullPointerException
- if targetClass
or converterClass
is null
public abstract Converter createConverter(java.lang.String converterId)
Instantiate and return a new Converter
instance of the class
specified by a previous call to addConverter()
for the specified converter id.
If the toLowerCase()
of the String
represenation of the value of the
"jakarta.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE
" application configuration
parameter is "true
" (without the quotes) and the Converter
instance to be returned is an
instance of DateTimeConverter
,
DateTimeConverter.setTimeZone(java.util.TimeZone)
must be called, passing the return from
TimeZone.getDefault()
.
The argument converter
must be inspected for the presence of the
ResourceDependency
annotation. If the ResourceDependency
annotation is
present, the action described in ResourceDependency
must be taken. If the
ResourceDependency
annotation is not present, the argument converter
must be inspected for
the presence of the ResourceDependencies
annotation. If the
ResourceDependencies
annotation is present, the action described in ResourceDependencies
must be taken.
converterId
- The converter id for which to create and return a new Converter
instanceFacesException
- if the Converter
cannot be createdjava.lang.NullPointerException
- if converterId
is null
public abstract Converter createConverter(java.lang.Class<?> targetClass)
Instantiate and return a new Converter
instance of the class that
has registered itself as capable of performing conversions for objects of the specified type. If no such
Converter
class can be identified, return null
.
To locate an appropriate Converter
class, the following algorithm is performed, stopping as soon as an
appropriate Converter
class is found:
Converter
registered for the target class itself.Converter
registered for interfaces that are implemented by the target class (directly or
indirectly).Converter
registered for the superclass (if any) of the target class, recursively working up the
inheritance hierarchy.
If the Converter
has a single argument constructor that accepts a Class
, instantiate the
Converter
using that constructor, passing the argument targetClass
as the sole argument.
Otherwise, simply use the zero-argument constructor.
If the toLowerCase()
of the String
represenation of the value of the
"jakarta.faces.DATETIMECONVERTER_DEFAULT_TIMEZONE_IS_SYSTEM_TIMEZONE
" application configuration
parameter is "true
" (without the quotes) and the Converter
instance to be returned is an
instance of DateTimeConverter
,
DateTimeConverter.setTimeZone(java.util.TimeZone)
must be called, passing the return from
TimeZone.getDefault()
.
targetClass
- Target class for which to return a Converter
FacesException
- if the Converter
cannot be createdjava.lang.NullPointerException
- if targetClass
is null
public abstract java.util.Iterator<java.lang.String> getConverterIds()
Return an Iterator
over the set of currently registered converter ids for this Application
.
public abstract java.util.Iterator<java.lang.Class<?>> getConverterTypes()
Return an Iterator
over the set of Class
instances for which Converter
classes have
been explicitly registered.
public void addDefaultValidatorId(java.lang.String validatorId)
Register a validator by its id that is applied to all UIInput
components in a view. The validator to
most often serve this role is the BeanValidator
. The usage contract for this method assumes that the
validator has been registered using the normal “by-id” registration mechanism.
An implementation is provided that takes no action so that users that decorate the Application
continue
to work.
validatorId
- the validator id.public java.util.Map<java.lang.String,java.lang.String> getDefaultValidatorInfo()
Return an immutable Map
over the set of currently registered default validator IDs and their class name
for this Application
.
An implementation is provided that returns Collections.emptyMap
so that users that decorate the
Application
continue to work.
public ExpressionFactory getExpressionFactory()
Return the ExpressionFactory
instance for this application. This instance is used by the convenience method
evaluateExpressionGet(jakarta.faces.context.FacesContext, java.lang.String, java.lang.Class<? extends T>)
.
The implementation must return the ExpressionFactory
from the Expression Language container by calling
jakarta.el.ELManager.getExpressionFactory()
.
An implementation is provided that throws UnsupportedOperationException
so that users that decorate the
Application
continue to work.
public <T> T evaluateExpressionGet(FacesContext context, java.lang.String expression, java.lang.Class<? extends T> expectedType) throws ELException
Get a value by evaluating an expression.
Call getExpressionFactory()
then call ExpressionFactory.createValueExpression(jakarta.el.ELContext, java.lang.String, java.lang.Class<?>)
passing the argument
expression
and expectedType
. Call FacesContext.getELContext()
and pass it to
ValueExpression.getValue(jakarta.el.ELContext)
, returning the result.
An implementation is provided that throws UnsupportedOperationException
so that users that decorate the
Application
continue to work.
T
- the return type.context
- the Faces context.expression
- the expression.expectedType
- the expected type.ELException
public abstract java.util.Iterator<java.util.Locale> getSupportedLocales()
Return an Iterator
over the supported Locale
s for this appication.
public abstract void setSupportedLocales(java.util.Collection<java.util.Locale> locales)
Set the Locale
instances representing the supported Locale
s for this application.
locales
- The set of supported Locale
s for this applicationjava.lang.NullPointerException
- if the argument newLocales
is null
.public void addELContextListener(ELContextListener listener)
Provide a way for Faces applications to register an ELContextListener
that will be notified on creation
of ELContext
instances. This listener will be called once per request.
An implementation is provided that throws UnsupportedOperationException
so that users that decorate the
Application
continue to work.
listener
- the Jakarta Expression Language context listener to add.public void removeELContextListener(ELContextListener listener)
Remove the argument listener
from the list of ELContextListener
s. If listener
is
null, no exception is thrown and no action is performed. If listener
is not in the list, no exception is
thrown and no action is performed.
An implementation is provided that throws UnsupportedOperationException
so that users that decorate the
Application
continue to work.
listener
- the Jakarta Expression Language context listener to remove.public ELContextListener[] getELContextListeners()
If no calls have been made to addELContextListener(jakarta.el.ELContextListener)
, this method must return an empty array.
Otherwise, return an array representing the list of listeners added by calls to addELContextListener(jakarta.el.ELContextListener)
.
An implementation is provided that throws UnsupportedOperationException
so that users that decorate the
Application
continue to work.
public abstract void addValidator(java.lang.String validatorId, java.lang.String validatorClass)
Register a new mapping of validator id to the name of the corresponding Validator
class. This allows
subsequent calls to createValidator()
to serve as a factory for Validator
instances.
validatorId
- The validator id to be registeredvalidatorClass
- The fully qualified class name of the corresponding Validator
implementationjava.lang.NullPointerException
- if validatorId
or validatorClass
is null
public abstract Validator createValidator(java.lang.String validatorId) throws FacesException
Instantiate and return a new Validator
instance of the class
specified by a previous call to addValidator()
for the specified validator id.
The argument validator
must be inspected for the presence of the
ResourceDependency
annotation. If the ResourceDependency
annotation is
present, the action described in ResourceDependency
must be taken. If the
ResourceDependency
annotation is not present, the argument validator
must be inspected for
the presence of the ResourceDependencies
annotation. If the
ResourceDependencies
annotation is present, the action described in ResourceDependencies
must be taken.
validatorId
- The validator id for which to create and return a new Validator
instanceFacesException
- if a Validator
of the specified id cannot be createdjava.lang.NullPointerException
- if validatorId
is null
public abstract java.util.Iterator<java.lang.String> getValidatorIds()
Return an Iterator
over the set of currently registered validator ids for this Application
.
public void publishEvent(FacesContext context, java.lang.Class<? extends SystemEvent> systemEventClass, java.lang.Object source)
If FacesContext.isProcessingEvents()
is true
and there are one or more
listeners for events of the type represented by systemEventClass
, call those listeners, passing
source
as the source of the event. The implementation should be as fast as possible in determining
whether or not a listener for the given systemEventClass
and source
has been installed, and
should return immediately once such a determination has been made. The implementation of publishEvent
must honor the requirements stated in subscribeToEvent(java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Class<?>, jakarta.faces.event.SystemEventListener)
regarding the storage and retrieval of listener
instances. Specifically, if subscribeToEvent(Class,Class,SystemEventListener)
was called, the
sourceClass
argument must match exactly the Class
of the source
argument in
the call to publishEvent()
. The implementation must not do any inheritance hierarachy inspection when
looking for a match between the sourceClass
passed to
subscribeToEvent(Class,Class,SystemEventListener)
and the sourceClass
passed to
publishEvent()
in order to find any listeners to which the event should be published. In the case where
the Class
of the source
argument does not match the Class
of the
sourceClass
used when the listener was subscribed using subscribeToEvent()
,
publishEvent(FacesContext,Class,Class,Object)
can be used to provide the Class
used to perform
the listener lookup and match.
The default implementation must implement an algorithm semantically equivalent to the following to locate listener instances and to invoke them.
If the source
argument implements SystemEventListenerHolder
, call
SystemEventListenerHolder.getListenersForEventClass(java.lang.Class<? extends jakarta.faces.event.SystemEvent>)
on it, passing the
systemEventClass
argument. If the list is not empty, perform algorithm traverseListenerList on
the list.
If any view level listeners have been installed by previous calls to
subscribeToEvent(Class, Class, jakarta.faces.event.SystemEventListener)
on the
UIViewRoot
, perform algorithm traverseListenerList on the list of listeners
for that event installed on the UIViewRoot
.
If any Application
level listeners have been installed by previous calls to
subscribeToEvent(Class, Class, jakarta.faces.event.SystemEventListener)
, perform algorithm
traverseListenerList on the list.
If any Application
level listeners have been installed by previous calls to
subscribeToEvent(Class, jakarta.faces.event.SystemEventListener)
, perform algorithm
traverseListenerList on the list.
If the act of invoking the processListener
method causes an
AbortProcessingException
to be thrown, processing of the listeners must be aborted, no
further processing of the listeners for this event must take place, and the exception must be logged with
Level.SEVERE
.
Algorithm traverseListenerList: For each listener in the list,
Call SystemEventListener.isListenerForSource(java.lang.Object)
, passing the source
argument.
If this returns false
, take no action on the listener.
Otherwise, if the event to be passed to the listener instances has not yet been constructed, construct the event,
passing source
as the argument to the one-argument constructor that takes an Object
. This
same event instance must be passed to all listener instances.
Call SystemEvent.isAppropriateListener(jakarta.faces.event.FacesListener)
, passing the listener instance as the argument. If
this returns false
, take no action on the listener.
Call SystemEvent.processListener(jakarta.faces.event.FacesListener)
, passing the listener instance.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
context
- the FacesContext
for the current requestsystemEventClass
- The Class
of event that is being published.source
- The source for the event of type systemEventClass
.java.lang.NullPointerException
- if either context
, systemEventClass
or source
is
null
public void publishEvent(FacesContext context, java.lang.Class<? extends SystemEvent> systemEventClass, java.lang.Class<?> sourceBaseType, java.lang.Object source)
This method functions exactly like publishEvent(FacesContext,Class,Object)
, except the run-time must use the
argument sourceBaseType
to find the matching listener instead of using the Class
of the
source
argument.
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
context
- the FacesContext
for the current requestsystemEventClass
- The Class
of event that is being published.sourceBaseType
- The Class
of the source event that must be used to lookup the listener to which
this event must be published. If this argument is null
the return from source.getClass()
must be used as the sourceBaseType
.source
- The source for the event of type systemEventClass
.java.lang.NullPointerException
- if any arguments except for sourceBaseType
are null
public void subscribeToEvent(java.lang.Class<? extends SystemEvent> systemEventClass, java.lang.Class<?> sourceClass, SystemEventListener listener)
Install the listener instance referenced by argument listener
into the application as a listener for events of type systemEventClass
that originate from objects of
type sourceClass
.
If argument sourceClass
is non-null
, sourceClass
and
systemEventClass
must be used to store the argument listener
in the application in such a
way that the listener
can be quickly looked up by the implementation of publishEvent(jakarta.faces.context.FacesContext, java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Object)
given
systemEventClass
and an instance of the Class
referenced by sourceClass
. If
argument sourceClass
is null
, the listener
must be discoverable by the
implementation of publishEvent(jakarta.faces.context.FacesContext, java.lang.Class<? extends jakarta.faces.event.SystemEvent>, java.lang.Object)
given only systemEventClass
.
It is valid to call this method during the processing of an event which was subscribed to by a previous call to this method.
systemEventClass
- the Class
of event for which listener
must be fired.sourceClass
- the Class
of the instance which causes events of type systemEventClass
to be fired. May be null
.listener
- the implementation of SystemEventListener
whose
SystemEventListener.processEvent(jakarta.faces.event.SystemEvent)
method must be called when events of type
systemEventClass
are fired.java.lang.NullPointerException
- if any combination of systemEventClass
, or listener
are
null
.public void subscribeToEvent(java.lang.Class<? extends SystemEvent> systemEventClass, SystemEventListener listener)
Install the listener instance referenced by argument listener
into application as a listener for events of type systemEventClass
. The default implementation simply
calls through to subscribeToEvent(Class, Class, jakarta.faces.event.SystemEventListener)
passing
null
as the sourceClass
argument
A default implementation is provided that throws UnsupportedOperationException
so that users that
decorate Application
can continue to function
systemEventClass
- the Class
of event for which listener
must be fired.listener
- the implementation of SystemEventListener
whose
SystemEventListener.processEvent(jakarta.faces.event.SystemEvent)
method must be called when events of type
systemEventClass
are fired.
See subscribeToEvent(java.lang.Class,java.lang.Class,jakarta.faces.event.SystemEventListener)
for an
additional requirement regarding when it is valid to call this method.
java.lang.NullPointerException
- if any combination of systemEventClass
, or listener
are
null
.public void unsubscribeFromEvent(java.lang.Class<? extends SystemEvent> systemEventClass, java.lang.Class<?> sourceClass, SystemEventListener listener)
Remove the listener instance referenced by argument listener
from the application as a listener for events of type systemEventClass
that originate from objects of
type sourceClass
. See subscribeToEvent(Class, Class, jakarta.faces.event.SystemEventListener)
for the specification of how the listener is stored, and therefore, how it must be removed.
See subscribeToEvent(java.lang.Class,java.lang.Class,jakarta.faces.event.SystemEventListener)
for an
additional requirement regarding when it is valid to call this method.
systemEventClass
- the Class
of event for which listener
must be fired.sourceClass
- the Class
of the instance which causes events of type systemEventClass
to be fired. May be null
.listener
- the implementation of SystemEventListener
to remove from the internal
data structure.java.lang.NullPointerException
- if any combination of context
, systemEventClass
, or
listener
are null
.public void unsubscribeFromEvent(java.lang.Class<? extends SystemEvent> systemEventClass, SystemEventListener listener)
Remove the listener instance referenced by argument listener
from the application as a listener for events of type systemEventClass
. The default implementation
simply calls through to unsubscribeFromEvent(Class, jakarta.faces.event.SystemEventListener)
passing
null
as the sourceClass
argument
See subscribeToEvent(java.lang.Class,java.lang.Class,jakarta.faces.event.SystemEventListener)
for an
additional requirement regarding when it is valid to call this method.
systemEventClass
- the Class
of event for which listener
must be fired.listener
- the implementation of SystemEventListener
to remove from the internal
data structure.java.lang.NullPointerException
- if any combination of context
, systemEventClass
, or
listener
are null
.public SearchExpressionHandler getSearchExpressionHandler()
Return the thread-safe singleton SearchExpressionHandler
for this application.
SearchExpressionHandler
.public void setSearchExpressionHandler(SearchExpressionHandler searchExpressionHandler)
Set the SearchExpressionHandler
instance used by the application.
searchExpressionHandler
- the SearchExpressionHandler
.java.lang.NullPointerException
- if searchExpressionHandler is null
java.lang.IllegalStateException
- if this method is called after at least one request has been processed by the
Lifecycle
instance for this application.public void addSearchKeywordResolver(SearchKeywordResolver resolver)
Cause the argument resolver
to be added to the head of the resolver chain.
It is not possible to remove a SearchKeywordResolver
registered with this method, once it has been
registered.
The default implementation throws UnsupportedOperationException
and is provided for the sole purpose of
not breaking existing applications that extend Application
.
resolver
- the SearchKeywordResolver to add.java.lang.IllegalStateException
- if called after the first request to the FacesServlet
has
been serviced.java.lang.NullPointerException
- when resolver is null.public SearchKeywordResolver getSearchKeywordResolver()
Return the singleton SearchKeywordResolver
instance to be used for all search keyword resolution. This is
actually an instance of a composite SearchKeywordResolver that must contain the following
SearchKeywordResolver
instances in the following order:
SearchKeywordResolver
instances declared using the <search-keyword-resolver> element in the
application configuration resources.
Any SearchKeywordResolver
instances added by calls to addSearchKeywordResolver(jakarta.faces.component.search.SearchKeywordResolver)
.
The SearchKeywordResolver
implementations for @all
, @child(n)
,
@form
, @id(...)
, @namingcontainer
, @next
, @none
,
@parent
, @previous
, @root
and @this
.
The default implementation throws UnsupportedOperationException
and is provided for the sole purpose of
not breaking existing applications that extend Application
.
SearchKeywordResolver
.