org.jboss.seam.contexts
Class PageContext

java.lang.Object
  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