IC59937: LAG IN TEXT TYPED IN INPUT FIELD WITH LARGE NUMBER OF INPUTS

Rational Host Access Transformation Services, Version 7.5.0.1
Rational Host Access Transformation Services, Version 7.1.0.4
Rational Host Access Transformation Services, Version 7.1.0.5
Rational Host Access Transformation Services, Version 7.1.0.6
Rational Host Access Transformation Services, Version 7.1.0.3
Rational Host Access Transformation Services, Version 7.5.0.2
Rational Host Access Transformation Services, Version 7.5.1.1
Rational Host Access Transformation Services, Version 7.5.1.2
Rational Host Access Transformation Services, version 7.5.1.3
Rational Host Access Transformation Services Fix Pack 4 (7.5.1.4) for 7.5.1
Rational Host Access Transformation Services Fix Pack 5 (7.5.1.5) for 7.5.1
Rational Host Access Transformation Services Fix Pack 6 (7.5.1.6) for 7.5.1

APAR status

• Closed as program error.

Error description

• On a HATS transformation that has a large number of inputs, both
  hidden and visible, text entered into an input field can appear
  very slowly.  The lag in the text display is due to a loop being
  run in the JavaScript in HATS.  The method causing the problem
  is called countUserInteractiveHatsFormFields.  The method is
  called on every keystroke and the system CPU will spike when the
  user types at anything beyond a very slow pace.
  

Local fix

• Modify the countUserInteractiveHatsFormFields function in the
  lxgwfunctions.js file.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users with a large number of inputs, both    *
  *                 visible and hidden, on a single              *
  *                 transformation.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: There is a visible lag of the text      *
  *                      being displayed when typing into        *
  *                      input fields.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When there are a large number of inputs on a HATS form the
  code running in the background to check the number of fields
  was taking too long to process.  As a result the text being
  displayed in the input fields was showing up slowly.
  

Problem conclusion

• The code that was counting the number of inputs on the HATS
  form was looping and taking too long to complete.  This code
  was optimized to prevent the problem.
  

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:

Modules/Macros

• LXGWFUNC
  

Fix information

• Fixed component name

  RATL HATS MULTI

• Fixed component ID

  5724U6700

Applicable component levels

• R710 PSY

     UP

• R750 PSY

     UP