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Configuring a Job using a tJavaFlex component

The tJavaFlex component is used to inject code at the start/end of a Job and to transform data transformations for each row.

A common Job using tJavaFlex is generally composed of:

  • a tFileInputDelimited component to read data from a text file,
  • a tJavaFlex to inject specific code at various moment of the Job processing (start, main or end parts),
  • a tLogRow component to print data in the console and processing information based on what the code injection says in the start and/or end part of tJavaFlex.


  1. In the Palette, slide a tFileInputDelimited , a tJavaFlex and a tLogRow component onto the workspace.
  2. Connect tFileInputDelimited to tJavaRow and tJavaRow to tLogRow using a Row > Main link.
  3. Set the Basic settings of the tFileInputDelimited component.
  4. Double-click on tFileInputDelimited to display its Basic settings. The tFileInputDelimited reads the same text file and use the same schema as in the tJava and tJavaRow example .
  5. When prompted, click OK to accept the propagation or click afterward on the Sync columns button in the tJavaRow Basic settings view.
  6. Double-click on tJavaRow to display its Basic settings view. Add the following code in the Start code area:
    System.out.println("******The subJob begins to work!******");
    int nb_line=0
  7. Add the following code in the Main code area:;
  8. Add the following code in the End code area:
    System.out.println("The total number of processed data is: "+nb_line);
    System.out.println("******The subJob finishes!******");
    Information noteNote: This code converts the column names to upper case.
  9. Execute the Job by pressing F6.


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