Module jakarta.faces

Package com.sun.faces.facelets.util

Class FunctionLibrary

java.lang.Object

com.sun.faces.facelets.util.FunctionLibrary

All Implemented Interfaces:

TagLibrary

public class FunctionLibrary
extends Object
implements TagLibrary

This TagLibrary exposes the public static methods defined on the functionsClass provided to the constructor as EL functions.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_NAMESPACE
static final Set<String>	NAMESPACES

Constructor Summary

Constructors

Constructor	Description
FunctionLibrary(Class<?> functionsClass, String namespace)

Method Summary

Modifier and Type	Method	Description
boolean	containsFunction(String ns, String name)	If this library contains the specified function name
boolean	containsNamespace(String ns, Tag t)	true if the namespace is used in this library
boolean	containsTagHandler(String ns, String localName)	If this library contains a TagHandler for the namespace and local name true if handled by this library
Method	createFunction(String ns, String name)	Return a Method instance for the passed namespace and name
TagHandler	createTagHandler(String ns, String localName, TagConfig tag)	Create a new instance of a TagHandler, using the passed TagConfig

Methods inherited from class java.lang.Object

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

Field Details

NAMESPACES

public static final Set<String> NAMESPACES

DEFAULT_NAMESPACE

public static final String DEFAULT_NAMESPACE

See Also:

• Constant Field Values

Constructor Details

FunctionLibrary

public FunctionLibrary(Class<?> functionsClass,
 String namespace)

Method Details

containsNamespace

public boolean containsNamespace(String ns,
 Tag t)

Description copied from interface: TagLibrary

true if the namespace is used in this library

Specified by:

containsNamespace in interface TagLibrary

Parameters:

ns - namespace

t - the tag instance currently active at the time this method is called. May be null

Returns:

whether the namespace is used in this library

containsTagHandler

public boolean containsTagHandler(String ns,
 String localName)

Description copied from interface: TagLibrary

If this library contains a TagHandler for the namespace and local name true if handled by this library

Specified by:

containsTagHandler in interface TagLibrary

Parameters:

ns - namespace

localName - local name

Returns:

whether handled by this library

createTagHandler

public TagHandler createTagHandler(String ns,
 String localName,
 TagConfig tag)
                            throws FacesException

Description copied from interface: TagLibrary

Create a new instance of a TagHandler, using the passed TagConfig

Specified by:

createTagHandler in interface TagLibrary

Parameters:

ns - namespace

localName - local name

tag - configuration information

Returns:

a new TagHandler instance

Throws:

FacesException - when a Faces exception occurs

containsFunction

public boolean containsFunction(String ns,
 String name)

Description copied from interface: TagLibrary

If this library contains the specified function name

Specified by:

containsFunction in interface TagLibrary

Parameters:

ns - namespace

name - function name

Returns:

true if handled

createFunction

public Method createFunction(String ns,
 String name)

Description copied from interface: TagLibrary

Return a Method instance for the passed namespace and name

Specified by:

createFunction in interface TagLibrary

Parameters:

ns - namespace

name - function name

Returns:

a Method instance for the passed namespace and name