public void setRuleName(String ruleName) {
        this.ruleName = ruleName;
    }
<p>
A display name for a backup rule. Must contain 1 to 50 alphanumeric or '-_.' characters.
</p>

@param ruleName
       A display name for a backup rule. Must contain 1 to 50 alphanumeric or '-_.' characters.
aws-java-sdk-backup/src/main/java/com/amazonaws/services/backup/model/BackupRule.java