Package jakarta.faces.view.facelets

Class FaceletContext

java.lang.Object

jakarta.el.ELContext

jakarta.faces.view.facelets.FaceletContext

public abstract class FaceletContext
extends ELContext

Context representative of a single request from a Facelet. This instance is passed to nearly every method call in this API.

Since:

2.0

Field Summary

Fields

Modifier and Type	Field	Description
static String	FACELET_CONTEXT_KEY	The key in the FacesContext attribute map for the FaceletContext instance.

Constructor Summary

Constructors

Constructor	Description
FaceletContext()

Method Summary

Modifier and Type	Method	Description
abstract String	generateUniqueId(String base)	Generate a unique ID for the passed String
abstract Object	getAttribute(String name)	Return an attribute set by a previous call to setAttribute(java.lang.String, java.lang.Object).
abstract ExpressionFactory	getExpressionFactory()	The ExpressionFactory to use within the Facelet this context is executing upon.
abstract FacesContext	getFacesContext()	The current FacesContext bound to this "request".
abstract void	includeFacelet(UIComponent parent, String relativePath)	Include another Facelet defined at some path, relative to the executing context, not the current Facelet (same as include directive in Jakarta Server Pages)
abstract void	includeFacelet(UIComponent parent, URL absolutePath)	Include another Facelet defined at some path, absolute to this ClassLoader/OS
abstract void	setAttribute(String name, Object value)	Support method which is backed by the current VariableMapper.
abstract void	setFunctionMapper(FunctionMapper fnMapper)	Set the FunctionMapper to use in EL evaluation/creation.
abstract void	setVariableMapper(VariableMapper varMapper)	Set the VariableMapper to use in EL evaluation/creation.

Methods inherited from class jakarta.el.ELContext

addEvaluationListener, convertToType, enterLambdaScope, exitLambdaScope, getContext, getELResolver, getEvaluationListeners, getFunctionMapper, getImportHandler, getLambdaArgument, getLocale, getVariableMapper, isLambdaArgument, isPropertyResolved, notifyAfterEvaluation, notifyBeforeEvaluation, notifyPropertyResolved, putContext, setLocale, setPropertyResolved, setPropertyResolved

Methods inherited from class java.lang.Object

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

Field Detail

FACELET_CONTEXT_KEY

public static final String FACELET_CONTEXT_KEY

The key in the FacesContext attribute map for the FaceletContext instance.

Constructor Detail

FaceletContext

public FaceletContext()

Method Detail

getFacesContext

public abstract FacesContext getFacesContext()

The current FacesContext bound to this "request". Must not be null.

Returns:

The current FacesContext bound to this "request".

Since:

2.0

generateUniqueId

public abstract String generateUniqueId(String base)

Generate a unique ID for the passed String

Parameters:

base - the string from which to generate the ID.

Returns:

the generated id

Since:

2.0

getExpressionFactory

public abstract ExpressionFactory getExpressionFactory()

The ExpressionFactory to use within the Facelet this context is executing upon. Must not be null.

Returns:

the ExpressionFactory for this Facelet.

Since:

2.0

setVariableMapper

public abstract void setVariableMapper(VariableMapper varMapper)

Set the VariableMapper to use in EL evaluation/creation.

Parameters:

varMapper - the new VariableMapper

Since:

2.0

setFunctionMapper

public abstract void setFunctionMapper(FunctionMapper fnMapper)

Set the FunctionMapper to use in EL evaluation/creation.

Parameters:

fnMapper - the new FunctionMapper

Since:

2.0

setAttribute

public abstract void setAttribute(String name,
                                  Object value)

Support method which is backed by the current VariableMapper.

Parameters:

name - the name of the attribute

value - the value of the attribute

Since:

2.0

getAttribute

public abstract Object getAttribute(String name)

Return an attribute set by a previous call to setAttribute(java.lang.String, java.lang.Object). Support method which is backed by the current VariableMapper

Parameters:

name - the name of the attribute to return.

Returns:

the value of the named attribute

Since:

2.0

includeFacelet

public abstract void includeFacelet(UIComponent parent,
                                    String relativePath)
                             throws IOException

Include another Facelet defined at some path, relative to the executing context, not the current Facelet (same as include directive in Jakarta Server Pages)

Parameters:

parent - the UIComponent that will be the parent of any components in the included facelet.

relativePath - the path of the resource containing the facelet markup, relative to the current markup

Throws:

IOException - if unable to load relativePath

FaceletException - if unable to parse the markup loaded from relativePath

FacesException - if unable to create child UIComponent instances

ELException - if any of the expressions in the markup loaded from relativePath fail

Since:

2.0

includeFacelet

public abstract void includeFacelet(UIComponent parent,
                                    URL absolutePath)
                             throws IOException

Include another Facelet defined at some path, absolute to this ClassLoader/OS

Parameters:

parent - the UIComponent that will be the parent of any components in the included facelet.

absolutePath - the absolute path to the resource containing the facelet markup

Throws:

IOException - if unable to load relativePath

FaceletException - if unable to parse the markup loaded from relativePath

FacesException - if unable to create child UIComponent instances

ELException - if any of the expressions in the markup loaded from relativePath fail