private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vmmigration.v1.DatacenterConnector,
            com.google.cloud.vmmigration.v1.DatacenterConnector.Builder,
            com.google.cloud.vmmigration.v1.DatacenterConnectorOrBuilder>
        getDatacenterConnectorFieldBuilder() {
      if (datacenterConnectorBuilder_ == null) {
        datacenterConnectorBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vmmigration.v1.DatacenterConnector,
                com.google.cloud.vmmigration.v1.DatacenterConnector.Builder,
                com.google.cloud.vmmigration.v1.DatacenterConnectorOrBuilder>(
                getDatacenterConnector(), getParentForChildren(), isClean());
        datacenterConnector_ = null;
      }
      return datacenterConnectorBuilder_;
    }
<pre>
Required. The create request body.
</pre>

<code>
.google.cloud.vmmigration.v1.DatacenterConnector datacenter_connector = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/CreateDatacenterConnectorRequest.java