PageContext (JBoss Seam API Documentation) - JBoss Seam 1.2.0 API 英文版文档

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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
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.

Version:: $Revision: 1.14 $
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)


Object get(String name)


String[] getNames()


ScopeType getType()


boolean isSet(String name)


void remove(String name)


void set(String name, Object value)


String toString()


Methods inherited from class java.lang.Object

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

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)`
`Object`	`get(String name)`
`String[]`	`getNames()`
`ScopeType`	`getType()`
`boolean`	`isSet(String name)`
`void`	`remove(String name)`
`void`	`set(String name, Object 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()

Specified by:: getType in interface Context

get

public Object get(String name)

Specified by:: get in interface Context

isSet

public boolean isSet(String name)

Specified by:: isSet in interface Context

set

public void set(String name,
                Object value)

Specified by:: set in interface Context

remove

public void remove(String name)

Specified by:: remove in interface Context

getNames

public String[] getNames()

Specified by:: getNames in interface Context

toString

public String toString()

Overrides:: toString in class Object

get

public Object get(Class clazz)

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