org.jboss.seam.contexts
Class PageContext

java.lang.Object
  extended by org.jboss.seam.contexts.PageContext
All Implemented Interfaces:
Context

public class PageContext
extends Object
implements Context

The page context allows you to store state during a request that renders a page, and access that state from any postback request that originates from that page. The state is destroyed at the end of the second request. During the RENDER_RESPONSE phase, the page context instance refers to the page that is about to be rendered. Prior to the INVOKE_APPLICATION phase, it refers to the page that was the source of the request. During the INVOKE_APPLICATION phase, set() and remove() manipulate the context of the page that is about to be rendered, while get() returns values from the page that was the source of the request.

Author:
Gavin King

Constructor Summary
PageContext()
           
 
Method Summary
 void flush()
          Put the buffered context variables in the faces view root, at the beginning of the render phase.
 Object get(Class clazz)
          Get a component instance, by its component name, as determined by the @Name annotation value.
 Object get(String name)
          Get a value by name.
 String[] getNames()
          Get all names defined in the context.
 ScopeType getType()
          Get the scope that this context object is associated with,
 boolean isSet(String name)
          Is the value set?
 void remove(String name)
          Unset a value.
 void set(String name, Object value)
          Set a value.
 String toString()
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

PageContext

public PageContext()
Method Detail

getType

public ScopeType getType()
Description copied from interface: Context
Get the scope that this context object is associated with,

Specified by:
getType in interface Context

get

public Object get(String name)
Description copied from interface: Context
Get a value by name.

Specified by:
get in interface Context

isSet

public boolean isSet(String name)
Description copied from interface: Context
Is the value set?

Specified by:
isSet in interface Context

set

public void set(String name,
                Object value)
Description copied from interface: Context
Set a value.

Specified by:
set in interface Context

remove

public void remove(String name)
Description copied from interface: Context
Unset a value.

Specified by:
remove in interface Context

getNames

public String[] getNames()
Description copied from interface: Context
Get all names defined in the context.

Specified by:
getNames in interface Context

toString

public String toString()
Overrides:
toString in class Object

get

public Object get(Class clazz)
Description copied from interface: Context
Get a component instance, by its component name, as determined by the @Name annotation value.

Specified by:
get in interface Context

flush

public void flush()
Put the buffered context variables in the faces view root, at the beginning of the render phase.

Specified by:
flush in interface Context