| This example shows how to define custom partitions and a custom `StreamCodec` to customize |
| the set of tuples that reach each partition. |
| |
| There are two operators: `RandomNumberGenerator` (generates random integers) and |
| `TestPartition` (logs input tuples). |
| |
| The application also uses a StreamCodec called `Codec3` to tag each tuple with a |
| partition tag based on whether the number is divisible by 2 or 4. |
| |
| `TestPartition` has code to create 3 partitions: one gets odd numbers, one gets multiples |
| of 4 and the last gets the rest. The `PartitionKeys` associated with each partition use |
| the partition tag to select the set of tuples to be handled by that partition. |
