BBjspPageContext (Deprecated)

The BBJSP system is deprecated. For new development, use BBxServlet.

Description

In BBj 16.0 and higher, this class provides core functionality to BBJSP Widgets and is used internally by all BBJSP Page files.

A BBjspPageContext instance is available to BBJSP BBJSP Pages and Code Tags through the public field #PageContext! and is passed to all BBJSP Widget objects used on BBJSP pages. The BBjspPageContext instance provides access to attributes within the scope of either PAGE or SESSION and the BBJSP Logging module. which can be used by page developers to output specific information into the context's log files. BBJSP Widget developers are likely to need this class's methods as attributes set by a BBJSP Widget are available directly to a BBJSP Page through the BBJSP Expression Language.

Methods of BBjspPageContext

Return Value	Method
boolean	contains(string name)
void	flush()
Object	getAttribute(string name)
Object	getAttribute(string name, int scope)
BBjVector	getAttributeNames()
BBjVector	getAttributeNamesInScope(int scope)
BBjspSessionData	getBBjspSession()
string	getContextName()
BBjJettyContext	getJettyContext()
BBjspLogger	getLogger()
BBjspWebRequest	getRequest()
BBjspWebResponse	getResponse()
BBjspWebSession	getSession()
void	removeAttribute(string name)
void	removeAttribute(string name, int scope)
void	runPipelineByName(string name)
void	saveBBjspSession()
void	setAttribute(string name, Object object)
void	setAttribute(string name, Object object, int scope)

Remarks

The examples demonstrate how a BBJSP Widget can place data into the BBjspPageContext that can be accessed during page processing.

Constants

1	PAGE_SCOPE
2	SESSION_SCOPE
3	APPLICATION_SCOPE

Example

This example demonstrates how this works in a BBJSP widget

REM ===
REM === A simple BBjspWidget that puts a BBjVector in the BBjspPageContext.
REM ===

class public SimpleWidget implements BBjspWidget

    field public BBjVector MyVector!
    field public BBjString Test$="Test Widget"

    method public void open(BBjspPageContext context!)
        #MyVector!=BBjAPI().makeVector()
        #MyVector!.add("Hello World")
        #MyVector!.add("This in a Vector")
    methodend

classend

This example demonstrates how this works in a BBJSP web-page