public void setRoleArn(String roleArn) {
        this.roleArn = roleArn;
    }
<p>
The ARN of an IAM role that has read and write access permissions to the source S3 bucket.
</p>

@param roleArn
       The ARN of an IAM role that has read and write access permissions to the source S3 bucket.
aws-java-sdk-lookoutmetrics/src/main/java/com/amazonaws/services/lookoutmetrics/model/S3SourceConfig.java