updates subscription arn . setting an empty string value to unsubscribe . concode_field_sep String displayName concode_elem_sep String subscriptionArn concode_elem_sep String topicArn concode_field_sep boolean isSubscribed concode_elem_sep String getDisplayName concode_elem_sep String getSubscriptionArn concode_elem_sep String toString concode_elem_sep String getTopicArn
void function ( final String arg0 ) { this . subscriptionArn = arg0 ; }