Package db

Interface DBLongIterator

All Known Implementing Classes:
AddressIndexKeyIterator, AddressKeyIterator
public interface DBLongIterator
DBLongIterator provides the ability to iterate over long values within a table.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    delete()
    Delete the last record(s) associated with the last value read via the next or previous methods.
    boolean
    hasNext()
    Return true if a value is available in the forward direction.
    boolean
    hasPrevious()
    Return true if a value is available in the reverse direction
    long
    next()
    Return the next long value.
    long
    previous()
    Return the previous long value.

  • Method Details

    • hasNext

      boolean hasNext() throws IOException
      Return true if a value is available in the forward direction.
      Throws:
      IOException - thrown if an IO error occurs

    • hasPrevious

      boolean hasPrevious() throws IOException
      Return true if a value is available in the reverse direction
      Throws:
      IOException - thrown if an IO error occurs

    • next

      long next() throws IOException
      Return the next long value.
      Throws:
      IOException - thrown if an IO error occurs
      NoSuchElementException - if the next value is not available.

    • previous

      long previous() throws IOException
      Return the previous long value.
      Throws:
      IOException - thrown if an IO error occurs
      NoSuchElementException - if the previous value is not available.

    • delete

      boolean delete() throws IOException
      Delete the last record(s) associated with the last value read via the next or previous methods.
      Returns:
      true if record(s) was successfully deleted.
      Throws:
      IOException - thrown if an IO error occurs.