public void setDatasetName(String datasetName) {
        this.datasetName = datasetName;
    }
A string of up to 128 characters. Allowed characters are a-z, A-Z, 0-9, '_' (underscore), '-' (dash), and '.'
(dot).

@param datasetName
       A string of up to 128 characters. Allowed characters are a-z, A-Z, 0-9, '_' (underscore), '-' (dash), and
       '.' (dot).
aws-java-sdk-cognitosync/src/main/java/com/amazonaws/services/cognitosync/model/DescribeDatasetRequest.java