public boolean hasNotificationEndpoint() {
      return ((bitField0_ & 0x00000080) != 0);
    }
<pre>
Required. Immutable. The endpoint where the subscription delivers events,
such as a Pub/Sub topic.
</pre>

<code>
.google.apps.events.subscriptions.v1.NotificationEndpoint notification_endpoint = 7 [(.google.api.field_behavior) = REQUIRED, (.google.api.field_behavior) = IMMUTABLE];
</code>

@return Whether the notificationEndpoint field is set.
java-workspaceevents/proto-google-cloud-workspaceevents-v1/src/main/java/com/google/apps/events/subscriptions/v1/Subscription.java