org.apache.jetspeed.container.state
Interface NavigationalStateComponent

public interface NavigationalStateComponent

NavigationalState

Version:

$Id: NavigationalStateComponent.java 187758 2004-10-17 14:02:38Z ate $

Author:

David Sean Taylor

Method Summary

NavigationalState	create() Creates a navigational state.
PortalURL	createURL(javax.servlet.http.HttpServletRequest request, String characterEncoding) Creates a Portal URL representing the URL of the request.
javax.portlet.PortletMode	lookupPortletMode(String name) Given a portlet mode name, look up its object.
javax.portlet.WindowState	lookupWindowState(String name) Given a window state name, look up its object.

Method Detail

create

public NavigationalState create()

Creates a navigational state. Depending on the implementation, a navigational state context can be retrieved from a persistence store to recover the state of a page such as portlet modes and window states of portlets on a page.

Returns:

A new navigational state. This method will never return null

Throws:

FailedToCreateNavStateException - if the nav state could not be created. Under normal circumstances, this should not happen.

createURL

public PortalURL createURL(javax.servlet.http.HttpServletRequest request,
                           String characterEncoding)

Creates a Portal URL representing the URL of the request.

Parameters:

request - The ubiqitious request.

characterEncoding - String containing the name of the chararacter encoding

Returns:

A new Portal URL. This method will never return null;

Throws:

FailedToCreatePortalUrlException - if the portelt url could not be created. Under normal circumstances, this should not happen.

lookupWindowState

public javax.portlet.WindowState lookupWindowState(String name)

Given a window state name, look up its object. Ensures that we always use the same objects for WindowStates allowing for comparison by value.

Parameters:

name - The string representation of the window state.

Returns:

The corresponding WindowState object

lookupPortletMode

public javax.portlet.PortletMode lookupPortletMode(String name)

Given a portlet mode name, look up its object. Ensures that we always use the same objects for Portlet Modes allowing for comparison by value.

Parameters:

name - The string representation of the portlet mode.

Returns:

The corresponding PortletMode object