PM21238: cancelOnPageTransition is incorrectly canceling JSF pages when using templates causing data on the JSP page to be lost

APAR status

• Closed as program error.

Error description

• Rational Business Developer V7.5.1.5:
  
  Given two JSF pages using templates, page1 and page2, and page2
  has the setting 'cancelOnPageTransition=yes'.  When the
  statement 'forward variable to Page2' in page1 is run, the
  'onConstructionFunction(variable)' function is invoked and the
  'variable' parameter is the data passed in from page1.  Then
  when a button on page2 is clicked, the
  'onConstructionFunction(variable)' function is invoked again
  when it should not be, and now the 'variable' parameter is
  empty.
  
  This causes the data on page2 to be lost including the button
  labels.
  

Local fix

Problem summary

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  * USERS AFFECTED:                                              *
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  * PROBLEM DESCRIPTION:                                         *
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  * RECOMMENDATION:                                              *
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  Users Affected - RBD 7.1.x and 7.5.x users who combine the
  use of "forward to" and "cancelOnPageTransition" in JSF
  pages with template.
  Problem Description - There are two JSF pages with template,
  when user uses the statement "forward variable to Page2" in
  Page1, set "cancelOnPageTransition=yes" in Page2 and try to
  get the variable in the onConstruction(variable) function of
  Page2, then click any button in Page2 to submit, the
  onConstruction function will be invoked again. At this time
  the variable value forward from Page1 will lost.
  

Problem conclusion

• The problem is caused by the implementation of
  cancelOnPageTransition, cancelOnPageTransition will compare
  corrent view id, and maintain a list which handlers need to
  be deleted, if the corrent view id is not equire with the
  list id, it will delete the handlers in the list. When a
  page use template, it will get a wrong current view id which
  is not equire to the list id, in this case, it will delete
  the handler and recreate it, so the onConstruction function
  will be invoked again. In my fix, I have currect the current
  view id when the JSF page using a template.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  RATL BUS DEV

• Fixed component ID

  5724S5000

Applicable component levels

• R751 PSN

     UP