@java.lang.Override
      public Builder clear() {
        super.clear();
        bitField0_ = 0;
        if (gcsDataSinkBuilder_ != null) {
          gcsDataSinkBuilder_.clear();
        }
        if (posixDataSinkBuilder_ != null) {
          posixDataSinkBuilder_.clear();
        }
        if (gcsDataSourceBuilder_ != null) {
          gcsDataSourceBuilder_.clear();
        }
        if (awsS3DataSourceBuilder_ != null) {
          awsS3DataSourceBuilder_.clear();
        }
        if (httpDataSourceBuilder_ != null) {
          httpDataSourceBuilder_.clear();
        }
        if (posixDataSourceBuilder_ != null) {
          posixDataSourceBuilder_.clear();
        }
        if (azureBlobStorageDataSourceBuilder_ != null) {
          azureBlobStorageDataSourceBuilder_.clear();
        }
        if (awsS3CompatibleDataSourceBuilder_ != null) {
          awsS3CompatibleDataSourceBuilder_.clear();
        }
        if (hdfsDataSourceBuilder_ != null) {
          hdfsDataSourceBuilder_.clear();
        }
        if (gcsIntermediateDataLocationBuilder_ != null) {
          gcsIntermediateDataLocationBuilder_.clear();
        }
        objectConditions_ = null;
        if (objectConditionsBuilder_ != null) {
          objectConditionsBuilder_.dispose();
          objectConditionsBuilder_ = null;
        }
        transferOptions_ = null;
        if (transferOptionsBuilder_ != null) {
          transferOptionsBuilder_.dispose();
          transferOptionsBuilder_ = null;
        }
        transferManifest_ = null;
        if (transferManifestBuilder_ != null) {
          transferManifestBuilder_.dispose();
          transferManifestBuilder_ = null;
        }
        sourceAgentPoolName_ = "";
        sinkAgentPoolName_ = "";
        dataSinkCase_ = 0;
        dataSink_ = null;
        dataSourceCase_ = 0;
        dataSource_ = null;
        intermediateDataLocationCase_ = 0;
        intermediateDataLocation_ = null;
        return this;
      }
<pre>
Configuration for running a transfer.
</pre>

Protobuf type {@code google.storagetransfer.v1.TransferSpec}
java-storage-transfer/proto-google-cloud-storage-transfer-v1/src/main/java/com/google/storagetransfer/v1/proto/TransferTypes.java