public String getPrefix() {
        return this.prefix;
    }
<p>
The "YYYY/MM/DD/HH" time format prefix is automatically used for delivered Amazon S3 files. You can also specify
a custom prefix, as described in <a
href="https://docs.aws.amazon.com/firehose/latest/dev/s3-prefixes.html">Custom Prefixes for Amazon S3
Objects</a>.
</p>

@return The "YYYY/MM/DD/HH" time format prefix is automatically used for delivered Amazon S3 files. You can also
        specify a custom prefix, as described in <a
        href="https://docs.aws.amazon.com/firehose/latest/dev/s3-prefixes.html">Custom Prefixes for Amazon S3
        Objects</a>.
aws-java-sdk-kinesis/src/main/java/com/amazonaws/services/kinesisfirehose/model/ExtendedS3DestinationConfiguration.java