public Builder mergeTransferJob(
          com.google.storagetransfer.v1.proto.TransferTypes.TransferJob value) {
        if (transferJobBuilder_ == null) {
          if (((bitField0_ & 0x00000001) != 0)
              && transferJob_ != null
              && transferJob_
                  != com.google.storagetransfer.v1.proto.TransferTypes.TransferJob
                      .getDefaultInstance()) {
            getTransferJobBuilder().mergeFrom(value);
          } else {
            transferJob_ = value;
          }
        } else {
          transferJobBuilder_.mergeFrom(value);
        }
        if (transferJob_ != null) {
          bitField0_ |= 0x00000001;
          onChanged();
        }
        return this;
      }
<pre>
Required. The job to create.
</pre>

<code>
.google.storagetransfer.v1.TransferJob transfer_job = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferProto.java