lukecwik commented on pull request #15549:
URL: https://github.com/apache/beam/pull/15549#issuecomment-959576834
Your loop `ProcessElement` loop would be like:
```
byteKey = tracker.getRestriction().getStart();
while (tryClaim(byteKey)) {
cursor = convertToRedisCursor(byteKey);
values, nextCursor = jedis.scan(cursor);
byteKey = convertToByteKey(nextCursor);
output values
}
return STOP;
```
You could also create a `RedisCursorRangeTracker` that is a thin wrapper
over the `ByteKeyRangeTracker` and effectively do conversions only by
internalizing the `convertToRedisCursor` and `convertToByteKey` methods.
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