Extension Proposals for F2F

[Nathan E Lipke <nlipke@bea.com>]

I would like to discuss the following proposals:

1. Finish the Multiphase Render proposal (HEAD section markup)
   
2. Export Registration Properties - Allow a complete propagation of a producer.
• Currently it is not possible to recreate a producer's registration on a different producer
  
• Use case - Propagate a producer from staging to production
  
• Staging Producer Setup
  
• Register with a staging producer, with registration properties
  
• Configure some portlets
• Export from Staging
  
• Export the the Registration Properties
• Export the configured portlets
• Import to Production
  
• Register the producer, using the exported properties
• Import the portlets
3. Make WSRP portlets more XMLHttpRequest (Ajax) friendly
• This is currently more of a discussion point than a set of specific extensions
• We have found issues with the following:
• WSRP URLs are not rewritable
• resource URLs
• resource-id
• wsrp-url
• both
• Perform Blocking Interaction
• There is no way to tell the consumer to not send other markup (other portlets and page markup)
• There is no way for the consumer to tell the producer this is an XHR request
• May require different handling by the producer and/or portlet
• There is no way for the producer to determine if multiple requests are part of a single client-consumer request
  
• What to do when there's IPC - Should other portlets' markup be processed
  
• Events
• Shared Parameters
• Use Cases:
1. Simple Type Ahead (no portlet state required)
   
• The user starts type and matching words automatically appear in the text box
• E.g. Type "Co" and "Colorado" is entered for you
  
• The portlet sends a XHR to a resource URL
• Via the wsrp-url
  
• A GET parameter is tacked on to the URL
• The response is XML or JSON which the client-script process and places in the text box
  
2. Type ahead based on a portlet's navigational state
• Type "Ha" and "Hamburger" appear in box (based on a previously entered value)
  
• The portlet sends a XHR to a resource URL
•  Via resource id
  
• A Get parameter is tacked on to the URL
• The response is XML or JSON which the client-script process and places in the text box
3. Wizard Style Forms
• The user enters form values and presses "Next", the next page of the wizard appears
• The portlet sends a XHR to a performBlockingInteraction URL
• Parameters may be
• GET parameters tacked on the URL
• POST parameters in the stream
  
• The portlet saves its navigational state to include the new parameters and its place in the form
• The response is HTML which the client uses DOM manipulation to update the page
  
• div.innerHTML = request.responseText
  
• On a page refresh the portlet will return the HTML (via getMarkup) with user on the same page  and previously submitted values are accounted for
  
4. Table Manipulation
• The user adds rows to a table, the page keeps track of the: sum, user average and company average
  
• The user enters a number and presses "Add"
• The table updates displaying a row for the new number and updates the sum and averages
• A parameter may be
• a GET parameter tacked on the URL
• a POST parameter in the stream
  
• The portlet saves its navigational state to include the value
• The portlet calculates the sum and averages and returns their values as JSON or XML
• The response is JSON or XML which the client uses DOM manipulation to update
• data = "eval("(" + request.responseText + ")")
  sumNode.innerHTML = "<b>" + data.sum + "</b>"
  userAvgNode.innerHTML = "<b>" + data.userAvg + "</b>"
  companyAvgNode.innerHTML = "<b>" + data.companyAvg + "</b>"
  
• On a page refresh the portlet will return the HTML (via getMarkup) with the user's data and the current sums and averages
  

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