[jboss-jira] [JBoss JIRA] Resolved: (BPEL-223) Convert IntegrationServlet to a servlet context listener

[Alejandro Guizar (JIRA)]

     [ http://jira.jboss.com/jira/browse/BPEL-223?page=all ]

Alejandro Guizar resolved BPEL-223.
-----------------------------------

    Resolution: Done

Converted servlet to context listener. Also updated the web-app descriptors in the examples.

> Convert IntegrationServlet to a servlet context listener
> --------------------------------------------------------
>
>                 Key: BPEL-223
>                 URL: http://jira.jboss.com/jira/browse/BPEL-223
>             Project: JBoss jBPM BPEL
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Engine
>            Reporter: Alejandro Guizar
>         Assigned To: Alejandro Guizar
>             Fix For: jBPM BPEL 1.1 beta 3
>
>
> ServletContextListeners are a viable alternative to servlets for initializing and destroying the integration control. From the Servlet 2.4 spec, section 10.2:
> "Servlet event listeners support event notifications for state changes in the ServletContext, HttpSession and ServletRequest objects.
> Servlet context listeners are used to **manage resources** or state held at a JVM level for the application."
> Their intent definitely seems to match our purposes.
> Section 10.2.2 provides an example. When the application starts up, the listener creates a connection to the database and stores it in the servlet context. Servlets access the connection from the context as needed. When the application shuts down, the listener closes the connection.
> Our listener could initialize the integration control and store it in the servlet context, then destroy it.

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