private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmwareengine.v1.Hcx,
            com.google.cloud.vmwareengine.v1.Hcx.Builder,
            com.google.cloud.vmwareengine.v1.HcxOrBuilder>
        getHcxFieldBuilder() {
      if (hcxBuilder_ == null) {
        hcxBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmwareengine.v1.Hcx,
                com.google.cloud.vmwareengine.v1.Hcx.Builder,
                com.google.cloud.vmwareengine.v1.HcxOrBuilder>(
                getHcx(), getParentForChildren(), isClean());
        hcx_ = null;
      }
      return hcxBuilder_;
    }
<pre>
Output only. HCX appliance.
</pre>

<code>
.google.cloud.vmwareengine.v1.Hcx hcx = 17 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/PrivateCloud.java