Package org.apache.hadoop.hive.metastore.model

Examples of org.apache.hadoop.hive.metastore.model.MColumnDescriptor

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   */
  private MColumnDescriptor createNewMColumnDescriptor(List<MFieldSchema> cols) {
    if (cols == null) {
      return null;
    }
    return new MColumnDescriptor(cols);
  }
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  private MStorageDescriptor convertToMStorageDescriptor(StorageDescriptor sd)
      throws MetaException {
    if (sd == null) {
      return null;
    }
    MColumnDescriptor mcd = createNewMColumnDescriptor(convertToMFieldSchemas(sd.getCols()));
    return convertToMStorageDescriptor(sd, mcd);
  }
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    }
  }

  private void copyMSD(MStorageDescriptor newSd, MStorageDescriptor oldSd) {
    oldSd.setLocation(newSd.getLocation());
    MColumnDescriptor oldCD = oldSd.getCD();
    // If the columns of the old column descriptor != the columns of the new one,
    // then change the old storage descriptor's column descriptor.
    // Convert the MFieldSchema's to their thrift object counterparts, because we maintain
    // datastore identity (i.e., identity of the model objects are managed by JDO,
    // not the application).
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  private void preDropStorageDescriptor(MStorageDescriptor msd) {
    if (msd == null || msd.getCD() == null) {
      return;
    }

    MColumnDescriptor mcd = msd.getCD();
    // Because there is a 1-N relationship between CDs and SDs,
    // we must set the SD's CD to null first before dropping the storage descriptor
    // to satisfy foriegn key constraints.
    msd.setCD(null);
    removeUnusedColumnDescriptor(mcd);
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   */
  private MColumnDescriptor createNewMColumnDescriptor(List<MFieldSchema> cols) {
    if (cols == null) {
      return null;
    }
    return new MColumnDescriptor(cols);
  }
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  private MStorageDescriptor convertToMStorageDescriptor(StorageDescriptor sd)
      throws MetaException {
    if (sd == null) {
      return null;
    }
    MColumnDescriptor mcd = createNewMColumnDescriptor(convertToMFieldSchemas(sd.getCols()));
    return convertToMStorageDescriptor(sd, mcd);
  }
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    }
  }

  private void copyMSD(MStorageDescriptor newSd, MStorageDescriptor oldSd) {
    oldSd.setLocation(newSd.getLocation());
    MColumnDescriptor oldCD = oldSd.getCD();
    // If the columns of the old column descriptor != the columns of the new one,
    // then change the old storage descriptor's column descriptor.
    // Convert the MFieldSchema's to their thrift object counterparts, because we maintain
    // datastore identity (i.e., identity of the model objects are managed by JDO,
    // not the application).
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  private void preDropStorageDescriptor(MStorageDescriptor msd) {
    if (msd == null || msd.getCD() == null) {
      return;
    }

    MColumnDescriptor mcd = msd.getCD();
    // Because there is a 1-N relationship between CDs and SDs,
    // we must set the SD's CD to null first before dropping the storage descriptor
    // to satisfy foriegn key constraints.
    msd.setCD(null);
    removeUnusedColumnDescriptor(mcd);
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   */
  private MColumnDescriptor createNewMColumnDescriptor(List<MFieldSchema> cols) {
    if (cols == null) {
      return null;
    }
    return new MColumnDescriptor(cols);
  }
View Full Code Here
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  private MStorageDescriptor convertToMStorageDescriptor(StorageDescriptor sd)
      throws MetaException {
    if (sd == null) {
      return null;
    }
    MColumnDescriptor mcd = createNewMColumnDescriptor(convertToMFieldSchemas(sd.getCols()));
    return convertToMStorageDescriptor(sd, mcd);
  }
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Related Classes of org.apache.hadoop.hive.metastore.model.MColumnDescriptor

  • org.apache.hadoop.hive.metastore.ObjectStore
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