public void setRuleARN(String ruleARN) {
        this.ruleARN = ruleARN;
    }
<p>
The ARN of the sampling rule. Specify a rule by either name or ARN, but not both.
</p>

@param ruleARN
       The ARN of the sampling rule. Specify a rule by either name or ARN, but not both.
aws-java-sdk-xray/src/main/java/com/amazonaws/services/xray/model/SamplingRuleUpdate.java