Package org.apache.orc

Interface StripeInformation

All Known Implementing Classes:
ReaderImpl.StripeInformationImpl
public interface StripeInformation
Information about the stripes in an ORC file that is provided by the Reader.

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    getDataLength()
    Get the length of the stripe's data.
    byte[][]
    getEncryptedLocalKeys()
    Get the encrypted keys starting from this stripe until overridden by a new set in a following stripe.
    long
    getEncryptionStripeId()
    Get the original stripe id that was used when the stripe was originally written.
    long
    getFooterLength()
    Get the length of the stripe's tail section, which contains its index.
    long
    getIndexLength()
    Get the length of the stripe's indexes.
    long
    getLength()
    Get the total length of the stripe in bytes.
    long
    getNumberOfRows()
    Get the number of rows in the stripe.
    long
    getOffset()
    Get the byte offset of the start of the stripe.
    long
    getStripeId()
    Get the index of this stripe in the current file.
    boolean
    hasEncryptionStripeId()
    Does this stripe have an explicit encryption stripe id set?

  • Method Details

    • getOffset

      long getOffset()
      Get the byte offset of the start of the stripe.
      Returns:
      the bytes from the start of the file

    • getLength

      long getLength()
      Get the total length of the stripe in bytes.
      Returns:
      the number of bytes in the stripe

    • getIndexLength

      long getIndexLength()
      Get the length of the stripe's indexes.
      Returns:
      the number of bytes in the index

    • getDataLength

      long getDataLength()
      Get the length of the stripe's data.
      Returns:
      the number of bytes in the stripe

    • getFooterLength

      long getFooterLength()
      Get the length of the stripe's tail section, which contains its index.
      Returns:
      the number of bytes in the tail

    • getNumberOfRows

      long getNumberOfRows()
      Get the number of rows in the stripe.
      Returns:
      a count of the number of rows

    • getStripeId

      long getStripeId()
      Get the index of this stripe in the current file.
      Returns:
      0 to number_of_stripes - 1

    • hasEncryptionStripeId

      boolean hasEncryptionStripeId()
      Does this stripe have an explicit encryption stripe id set?
      Returns:
      true if this stripe was the first stripe of a merge

    • getEncryptionStripeId

      long getEncryptionStripeId()
      Get the original stripe id that was used when the stripe was originally written. This is only different that getStripeId in merged files.
      Returns:
      the original stripe id + 1

    • getEncryptedLocalKeys

      byte[][] getEncryptedLocalKeys()
      Get the encrypted keys starting from this stripe until overridden by a new set in a following stripe. The top level array is one for each encryption variant. Each element is an encrypted key.
      Returns:
      the array of encrypted keys