java.lang.Object
- javax.faces.context.Flash
- - javax.faces.context.FlashWrapper

All Implemented Interfaces:

Map<String,Object>, FacesWrapper<Flash>
```
public abstract class FlashWrapper
extends Flash
implements FacesWrapper<Flash>
```
Provides a simple implementation of Flash that can be subclassed by developers wishing to provide specialized behavior to an existing Flash instance. The default implementation of all methods is to call through to the wrapped Flash.

Usage: extend this class and override getWrapped() to return the instance we are wrapping.

Since:

2.2

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.Map
  Map.Entry<K,V>

Field Summary
- Fields inherited from class javax.faces.context.Flash
  NULL_VALUE

Constructor Summary

Constructors
Constructor and Description

FlashWrapper()

FlashWrapper (Java(TM) EE 7 Specification APIs) Home of API Java Contents Haut

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()` The default behavior of this method is to call `Map.clear()` on the wrapped `Flash` object.
`boolean`	`containsKey(Object key)` The default behavior of this method is to call `Map.containsKey(Object)` on the wrapped `Flash` object.
`boolean`	`containsValue(Object value)` The default behavior of this method is to call `Map.containsValue(Object)` on the wrapped `Flash` object.
`void`	`doPostPhaseActions(FacesContext ctx)` The default behavior of this method is to call `Flash.doPostPhaseActions(FacesContext)` on the wrapped `Flash` object.
`void`	`doPrePhaseActions(FacesContext ctx)` The default behavior of this method is to call `Flash.doPrePhaseActions(FacesContext)` on the wrapped `Flash` object.
`Set<Map.Entry<String,Object>>`	`entrySet()` The default behavior of this method is to call `Map.entrySet()` on the wrapped `Flash` object.
`Object`	`get(Object key)` The default behavior of this method is to call `Map.get(Object)` on the wrapped `Flash` object.
`abstract Flash`	`getWrapped()` A class that implements this interface uses this method to return an instance of the class being wrapped.
`boolean`	`isEmpty()` The default behavior of this method is to call `Map.isEmpty()` on the wrapped `Flash` object.
`boolean`	`isKeepMessages()` The default behavior of this method is to call `Flash.isKeepMessages()` on the wrapped `Flash` object.
`boolean`	`isRedirect()` The default behavior of this method is to call `Flash.isRedirect()` on the wrapped `Flash` object.
`void`	`keep(String key)` The default behavior of this method is to call `Flash.keep(String)` on the wrapped `Flash` object.
`Set<String>`	`keySet()` The default behavior of this method is to call `Map.keySet()` on the wrapped `Flash` object.
`Object`	`put(String key, Object value)` The default behavior of this method is to call `Map.put(K, V)` on the wrapped `Flash` object.
`void`	`putAll(Map<? extends String,? extends Object> m)` The default behavior of this method is to call `Map.putAll(Map)` on the wrapped `Flash` object.
`void`	`putNow(String key, Object value)` The default behavior of this method is to call `Flash.putNow(String, Object)` on the wrapped `Flash` object.
`Object`	`remove(Object key)` The default behavior of this method is to call `Map.remove(Object)` on the wrapped `Flash` object.
`void`	`setKeepMessages(boolean newValue)` The default behavior of this method is to call `Flash.setKeepMessages(boolean)` on the wrapped `Flash` object.
`void`	`setRedirect(boolean newValue)` The default behavior of this method is to call `Flash.setRedirect(boolean)` on the wrapped `Flash` object.
`int`	`size()` The default behavior of this method is to call `Map.size()` on the wrapped `Flash` object.
`Collection<Object>`	`values()` The default behavior of this method is to call `Map.values()` on the wrapped `Flash` object.

FlashWrapper (Java(TM) EE 7 Specification APIs) Home of API Java Contents Haut

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

Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

- Constructor Detail
  - FlashWrapper
```
public FlashWrapper()
```
- Method Detail
  - getWrapped
```
public abstract Flash getWrapped()
```
    Description copied from interface: FacesWrapper
    
    A class that implements this interface uses this method to return an instance of the class being wrapped.
    
    Specified by:
    
    getWrapped in interface FacesWrapper<Flash>
  - doPostPhaseActions
```
public void doPostPhaseActions(FacesContext ctx)
```
    The default behavior of this method is to call Flash.doPostPhaseActions(FacesContext) on the wrapped Flash object.
    
    Specified by:
    
    doPostPhaseActions in class Flash
    
    Parameters:
    
    ctx - the FacesContext for this request.
    
    Since:
    
    2.2
  - doPrePhaseActions
```
public void doPrePhaseActions(FacesContext ctx)
```
    The default behavior of this method is to call Flash.doPrePhaseActions(FacesContext) on the wrapped Flash object.
    
    Specified by:
    
    doPrePhaseActions in class Flash
    
    Parameters:
    
    ctx - the FacesContext for this request.
    
    Since:
    
    2.2
  - isKeepMessages
```
public boolean isKeepMessages()
```
    The default behavior of this method is to call Flash.isKeepMessages() on the wrapped Flash object.
    
    Specified by:
    
    isKeepMessages in class Flash
    
    Since:
    
    2.2
  - isRedirect
```
public boolean isRedirect()
```
    The default behavior of this method is to call Flash.isRedirect() on the wrapped Flash object.
    
    Specified by:
    
    isRedirect in class Flash
    
    Since:
    
    2.2
  - keep
```
public void keep(String key)
```
    The default behavior of this method is to call Flash.keep(String) on the wrapped Flash object.
    
    Specified by:
    
    keep in class Flash
    
    Parameters:
    
    key - if argument key is the name of an entry previously stored to the flash on this traversal through the lifecycle via a call to Flash.putNow(java.lang.String, java.lang.Object), or to a set to the EL expression #{flash.now.<key>}, or to the request Map, to be promoted to the flash as if a call to put() or a set to the expression #{flash.<key>} was being called.
    
    Since:
    
    2.2
  - putNow
```
public void putNow(String key,
                   Object value)
```
    The default behavior of this method is to call Flash.putNow(String, Object) on the wrapped Flash object.
    
    Specified by:
    
    putNow in class Flash
    
    Parameters:
    
    key - the key for this entry
    
    value - the value for this entry
    
    Since:
    
    2.2
  - setKeepMessages
```
public void setKeepMessages(boolean newValue)
```
    The default behavior of this method is to call Flash.setKeepMessages(boolean) on the wrapped Flash object.
    
    Specified by:
    
    setKeepMessages in class Flash
    
    Parameters:
    
    newValue - the new value for this property on this session.
    
    Since:
    
    2.2
  - setRedirect
```
public void setRedirect(boolean newValue)
```
    The default behavior of this method is to call Flash.setRedirect(boolean) on the wrapped Flash object.
    
    Specified by:
    
    setRedirect in class Flash
    
    Parameters:
    
    newValue - the new value for this property on this session.
    
    Since:
    
    2.2
  - clear
```
public void clear()
```
    The default behavior of this method is to call Map.clear() on the wrapped Flash object.
    
    Specified by:
    
    clear in interface Map<String,Object>
    
    Since:
    
    2.2
  - containsKey
```
public boolean containsKey(Object key)
```
    The default behavior of this method is to call Map.containsKey(Object) on the wrapped Flash object.
    
    Specified by:
    
    containsKey in interface Map<String,Object>
    
    Since:
    
    2.2
  - containsValue
```
public boolean containsValue(Object value)
```
    The default behavior of this method is to call Map.containsValue(Object) on the wrapped Flash object.
    
    Specified by:
    
    containsValue in interface Map<String,Object>
    
    Since:
    
    2.2
  - entrySet
```
public Set<Map.Entry<String,Object>> entrySet()
```
    The default behavior of this method is to call Map.entrySet() on the wrapped Flash object.
    
    Specified by:
    
    entrySet in interface Map<String,Object>
    
    Since:
    
    2.2
  - get
```
public Object get(Object key)
```
    The default behavior of this method is to call Map.get(Object) on the wrapped Flash object.
    
    Specified by:
    
    get in interface Map<String,Object>
    
    Since:
    
    2.2
  - isEmpty
```
public boolean isEmpty()
```
    The default behavior of this method is to call Map.isEmpty() on the wrapped Flash object.
    
    Specified by:
    
    isEmpty in interface Map<String,Object>
    
    Since:
    
    2.2
  - keySet
```
public Set<String> keySet()
```
    The default behavior of this method is to call Map.keySet() on the wrapped Flash object.
    
    Specified by:
    
    keySet in interface Map<String,Object>
    
    Since:
    
    2.2
  - put
```
public Object put(String key,
                  Object value)
```
    The default behavior of this method is to call Map.put(K, V) on the wrapped Flash object.
    
    Specified by:
    
    put in interface Map<String,Object>
    
    Since:
    
    2.2
  - putAll
```
public void putAll(Map<? extends String,? extends Object> m)
```
    The default behavior of this method is to call Map.putAll(Map) on the wrapped Flash object.
    
    Specified by:
    
    putAll in interface Map<String,Object>
    
    Since:
    
    2.2
  - remove
```
public Object remove(Object key)
```
    The default behavior of this method is to call Map.remove(Object) on the wrapped Flash object.
    
    Specified by:
    
    remove in interface Map<String,Object>
    
    Since:
    
    2.2
  - size
```
public int size()
```
    The default behavior of this method is to call Map.size() on the wrapped Flash object.
    
    Specified by:
    
    size in interface Map<String,Object>
    
    Since:
    
    2.2
  - values
```
public Collection<Object> values()
```
    The default behavior of this method is to call Map.values() on the wrapped Flash object.
    
    Specified by:
    
    values in interface Map<String,Object>
    
    Since:
    
    2.2

Document created the 11/06/2005, last modified the 18/08/2025
Source of the printed document:https://www.gaudry.be/en/java-api-javaee-rf-javax/faces/context/FlashWrapper.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

Manuel PHP : https://docs.oracle.com, FlashWrapper (Java(TM) EE 7 Specification APIs)

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author of this site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Class FlashWrapper

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Field Summary

Fields inherited from class javax.faces.context.Flash

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Detail

FlashWrapper

Method Detail

getWrapped

doPostPhaseActions

doPrePhaseActions

isKeepMessages

isRedirect

keep

putNow

setKeepMessages

setRedirect

clear

containsKey

containsValue

entrySet

get

isEmpty

keySet

put

putAll

remove

size

values

References