org.szegedi.spring.web.jsflow
Interface ScriptSelectionStrategy

All Known Implementing Classes:

UrlScriptSelectionStrategy

public interface ScriptSelectionStrategy

Interface for objects that select the flowscript to execute for a flow initiating HTTP requests.

Version:

$Id: $

Author:

Attila Szegedi

Method Summary

java.lang.String

getScriptPath(javax.servlet.http.HttpServletRequest request) Returns the pathname of the script that should run for a particular initial HTTP request.

Method Detail

getScriptPath

java.lang.String getScriptPath(javax.servlet.http.HttpServletRequest request)
                               throws org.springframework.web.servlet.ModelAndViewDefiningException

Returns the pathname of the script that should run for a particular initial HTTP request.

Parameters:

request - the HTTP request that initiates a flow

Returns:

the path of the script. null can be returned to indicate that this strategy is unable to select a script (i.e. because some data is missing in the request). The controller will respond to this by sending back a HTTP 400 "Bad Request" status. Alternatively, the strategy can throw an instance of Spring's ModelAndViewDefiningException to indicate failure.

Throws:

org.springframework.web.servlet.ModelAndViewDefiningException