@java.lang.Override
  public int getJoyLikelihoodValue() {
    return joyLikelihood_;
  }
<pre>
Joy likelihood.
</pre>

<code>.google.cloud.vision.v1.Likelihood joy_likelihood = 9;</code>

@return The enum numeric value on the wire for joyLikelihood.
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/FaceAnnotation.java