@java.lang.Override
  public java.lang.String getLocationId() {
    java.lang.Object ref = locationId_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      locationId_ = s;
      return s;
    }
  }
<pre>
Optional. Cloud region where annotation should take place. Supported cloud
regions: `us-east1`, `us-west1`, `europe-west1`, `asia-east1`. If no region
is specified, a region will be determined based on video file location.
</pre>

<code>string location_id = 5 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The locationId.
java-video-intelligence/proto-google-cloud-video-intelligence-v1p2beta1/src/main/java/com/google/cloud/videointelligence/v1p2beta1/AnnotateVideoRequest.java