Processing multiple files at once

Often, with batch processes, it is required that multiple files are processed by the same job in a single tranche. This example shows how this can be achieved by merging a group of input files into a single output.

Getting ready

Open the jo_cook_ch08_0120_multipleFiles job. You will notice that it is currently reading a single file to a temporary file, and then copying the temporary fileto a permanent output.

How to do it...

The steps for processing multiple files at once are as follows:

1. Add a tFileList component, open it, and set the directory to context.cookbookData+"/chapter8".

2. Click on the + button under the Filemask box, and add the filemask "chapter08_jo_0120_customerData_*.txt".

3. Your tFileList should look like the one shown, as follows:

   

4. Move the OnSubjobOk from the tFileInputDelimited to the tFileList.

5. Add a tJava component.

6. Right-click on tFileList and select Row, then Iterate, and link to the tJava.

7. Right-click on the tJava and select Trigger, then OnComponentOk...