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Pentaho Data Integration Beginner's Guide by María Carina Roldán

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Time for action – counting frequent words by coding in Java

In this section, we will redo the transformation from the Time for action – counting frequent words by coding in JavaScript section, but this time we will code in Java rather than in JavaScript.

  1. Open the transformation from the Time for action – counting frequent words by coding in JavaScript section of this chapter and save it as a new transformation.
  2. Delete the JavaScript step and in its place, add a User Defined Java Class step. You will find it under the Scripting category of steps. You will have the following:
    Time for action – counting frequent words by coding in Java
  3. Double-click on the User Defined Java Class step—UDJC from now on—and in the ...

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