[jira] [Created] (KAFKA-15126) Change range queries to accept null lower and upper bounds

["Lucia Cerchie (Jira)" <ji...@apache.org>]

Lucia Cerchie created KAFKA-15126:
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             Summary: Change range queries to accept null lower and upper bounds
                 Key: KAFKA-15126
                 URL: https://issues.apache.org/jira/browse/KAFKA-15126
             Project: Kafka
          Issue Type: Improvement
          Components: streams
            Reporter: Lucia Cerchie
            Assignee: Lucia Cerchie


{color:#1d1c1d}When web client requests come in with query params, it's common for those params to be null. We want developers to just be able to pass in the upper/lower bounds if they want instead of implementing their own logic to avoid getting the whole range (which will happen if they leave the params null). {color}

{color:#1d1c1d}An example of the logic they can avoid using after this KIP is implemented is below:{color}
{code:java}
private RangeQuery<String, ValueAndTimestamp<StockTransactionAggregation>> createRangeQuery(String lower, String upper) {
        if (isBlank(lower) && isBlank(upper)) {
            return RangeQuery.withNoBounds();
        } else if (!isBlank(lower) && isBlank(upper)) {
            return RangeQuery.withLowerBound(lower);
        } else if (isBlank(lower) && !isBlank(upper)) {
            return RangeQuery.withUpperBound(upper);
        } else {
            return RangeQuery.withRange(lower, upper);
        }
    } {code}
 
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