java.lang.Object
- org.springframework.web.context.request.FacesRequestAttributes

All Implemented Interfaces:
RequestAttributes
Direct Known Subclasses:
FacesWebRequest
```
public class FacesRequestAttributes
extends Object
implements RequestAttributes
```
RequestAttributes adapter for a JSF FacesContext. Used as default in a JSF environment, wrapping the current FacesContext.
NOTE: In contrast to ServletRequestAttributes, this variant does not support destruction callbacks for scoped attributes, neither for the request scope nor for the session scope. If you rely on such implicit destruction callbacks, consider defining a Spring RequestContextListener in your web.xml.
Requires JSF 2.0 or higher, as of Spring 4.0.
Since:
2.5.2
Author:
Juergen Hoeller
See Also:
FacesContext.getExternalContext(), ExternalContext.getRequestMap(), ExternalContext.getSessionMap(), RequestContextHolder.currentRequestAttributes()

Field Summary
- Fields inherited from interface org.springframework.web.context.request.RequestAttributes
  REFERENCE_REQUEST, REFERENCE_SESSION, SCOPE_REQUEST, SCOPE_SESSION

Constructor Summary
Constructors
Constructor Description
FacesRequestAttributes(FacesContext facesContext)
Create a new FacesRequestAttributes adapter for the given FacesContext.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`getAttribute(String name, int scope)`	Return the value for the scoped attribute of the given name, if any.
`protected Map<String,Object>`	`getAttributeMap(int scope)`	Return the JSF attribute Map for the specified scope.
`String[]`	`getAttributeNames(int scope)`	Retrieve the names of all attributes in the scope.
`protected ExternalContext`	`getExternalContext()`	Return the JSF ExternalContext that this adapter operates on.
`protected FacesContext`	`getFacesContext()`	Return the JSF FacesContext that this adapter operates on.
`String`	`getSessionId()`	Return an id for the current underlying session.
`Object`	`getSessionMutex()`	Expose the best available mutex for the underlying session: that is, an object to synchronize on for the underlying session.
`void`	`registerDestructionCallback(String name, Runnable callback, int scope)`	Register a callback to be executed on destruction of the specified attribute in the given scope.
`void`	`removeAttribute(String name, int scope)`	Remove the scoped attribute of the given name, if it exists.
`Object`	`resolveReference(String key)`	Resolve the contextual reference for the given key, if any.
`void`	`setAttribute(String name, Object value, int scope)`	Set the value for the scoped attribute of the given name, replacing an existing value (if any).

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FacesRequestAttributes
```
public FacesRequestAttributes(FacesContext facesContext)
```
    Create a new FacesRequestAttributes adapter for the given FacesContext.
    Parameters:
    facesContext - the current FacesContext
    See Also:
    FacesContext.getCurrentInstance()
- Method Detail
  - getFacesContext
```
protected final FacesContext getFacesContext()
```
    Return the JSF FacesContext that this adapter operates on.
  - getExternalContext
```
protected final ExternalContext getExternalContext()
```
    Return the JSF ExternalContext that this adapter operates on.
    See Also:
    FacesContext.getExternalContext()
  - getAttributeMap
```
protected Map<String,Object> getAttributeMap(int scope)
```
    Return the JSF attribute Map for the specified scope.
    Parameters:
    scope - constant indicating request or session scope
    Returns:
    the Map representation of the attributes in the specified scope
    See Also:
    RequestAttributes.SCOPE_REQUEST, RequestAttributes.SCOPE_SESSION
  - getAttribute
```
public Object getAttribute(String name,
                           int scope)
```
    Description copied from interface: RequestAttributes
    Return the value for the scoped attribute of the given name, if any.
    Specified by:
    getAttribute in interface RequestAttributes
    Parameters:
    name - the name of the attribute
    scope - the scope identifier
    Returns:
    the current attribute value, or null if not found
  - setAttribute
```
public void setAttribute(String name,
                         Object value,
                         int scope)
```
    Description copied from interface: RequestAttributes
    Set the value for the scoped attribute of the given name, replacing an existing value (if any).
    Specified by:
    setAttribute in interface RequestAttributes
    Parameters:
    name - the name of the attribute
    value - the value for the attribute
    scope - the scope identifier
  - removeAttribute
```
public void removeAttribute(String name,
                            int scope)
```
    Description copied from interface: RequestAttributes
    Remove the scoped attribute of the given name, if it exists.
    Note that an implementation should also remove a registered destruction callback for the specified attribute, if any. It does, however, not need to execute a registered destruction callback in this case, since the object will be destroyed by the caller (if appropriate).
    Specified by:
    removeAttribute in interface RequestAttributes
    Parameters:
    name - the name of the attribute
    scope - the scope identifier
  - getAttributeNames
```
public String[] getAttributeNames(int scope)
```
    Description copied from interface: RequestAttributes
    Retrieve the names of all attributes in the scope.
    Specified by:
    getAttributeNames in interface RequestAttributes
    Parameters:
    scope - the scope identifier
    Returns:
    the attribute names as String array
  - registerDestructionCallback
```
public void registerDestructionCallback(String name,
                                        Runnable callback,
                                        int scope)
```
    Description copied from interface: RequestAttributes
    Register a callback to be executed on destruction of the specified attribute in the given scope.
    Implementations should do their best to execute the callback at the appropriate time: that is, at request completion or session termination, respectively. If such a callback is not supported by the underlying runtime environment, the callback must be ignored and a corresponding warning should be logged.
    Note that 'destruction' usually corresponds to destruction of the entire scope, not to the individual attribute having been explicitly removed by the application. If an attribute gets removed via this facade's RequestAttributes.removeAttribute(String, int) method, any registered destruction callback should be disabled as well, assuming that the removed object will be reused or manually destroyed.
    NOTE: Callback objects should generally be serializable if they are being registered for a session scope. Otherwise the callback (or even the entire session) might not survive web app restarts.
    Specified by:
    registerDestructionCallback in interface RequestAttributes
    Parameters:
    name - the name of the attribute to register the callback for
    callback - the destruction callback to be executed
    scope - the scope identifier
  - resolveReference
```
public Object resolveReference(String key)
```
    Description copied from interface: RequestAttributes
    Resolve the contextual reference for the given key, if any.
    At a minimum: the HttpServletRequest reference for key "request", and the HttpSession reference for key "session".
    Specified by:
    resolveReference in interface RequestAttributes
    Parameters:
    key - the contextual key
    Returns:
    the corresponding object, or null if none found
  - getSessionId
```
public String getSessionId()
```
    Description copied from interface: RequestAttributes
    Return an id for the current underlying session.
    Specified by:
    getSessionId in interface RequestAttributes
    Returns:
    the session id as String (never null)
  - getSessionMutex
```
public Object getSessionMutex()
```
    Description copied from interface: RequestAttributes
    Expose the best available mutex for the underlying session: that is, an object to synchronize on for the underlying session.
    Specified by:
    getSessionMutex in interface RequestAttributes
    Returns:
    the session mutex to use (never null)

Class FacesRequestAttributes

Field Summary

Fields inherited from interface org.springframework.web.context.request.RequestAttributes

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

FacesRequestAttributes

Method Detail

getFacesContext

getExternalContext

getAttributeMap

getAttribute

setAttribute

removeAttribute

getAttributeNames

registerDestructionCallback

resolveReference

getSessionId

getSessionMutex