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| |
| <html> |
| <h2>ParDo</h2> |
| <p> |
| ParDo is a Beam transform for generic parallel processing. The ParDo processing paradigm is |
| similar to the “Map” phase of a Map/Shuffle/Reduce-style algorithm: a ParDo transform considers |
| each element in the input PCollection, performs some processing function (your user code) on |
| that element, and emits zero, one, or multiple elements to an output PCollection. |
| </p> |
| <p> |
| <b>Kata:</b> Please write a simple ParDo that maps the input element by multiplying it by 10. |
| </p> |
| <br> |
| <div class="hint"> |
| Override <a href="https://beam.apache.org/releases/pydoc/current/apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn.process"> |
| process</a> method. |
| </div> |
| <div class="hint"> |
| Use <a href="https://beam.apache.org/releases/pydoc/current/apache_beam.transforms.core.html#apache_beam.transforms.core.ParDo"> |
| ParDo</a> with |
| <a href="https://beam.apache.org/releases/pydoc/current/apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn">DoFn</a>. |
| </div> |
| <div class="hint"> |
| Refer to the Beam Programming Guide |
| <a href="https://beam.apache.org/documentation/programming-guide/#pardo">"ParDo"</a> section for |
| more information. |
| </div> |
| </html> |
