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.
Procedure
-
In the Palette, slide a tFileInputDelimited , a
tJavaFlex and a tLogRow
component onto the workspace.
-
Connect tFileInputDelimited to
tJavaRow and tJavaRow to
tLogRow using a Row > Main link.
-
Set the Basic settings of the tFileInputDelimited
component.
-
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 .
-
When prompted, click OK to accept the propagation or
click afterward on the Sync columns button in the
tJavaRow
Basic settings view.
-
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
-
Add the following code in the Main code area:
row2.name=(row1.name).toUpperCase();
nb_line++;
-
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!******");
Note: This code converts the column names to upper case.
-
Execute the Job by pressing F6.
