Interface RowMapper<I>


  • public interface RowMapper<I>
    Defines a mapping between objects of some given type and table row index.

    The following invariants must hold:

        rowIdToIndex(rowIndexToId(ix)) == ix
        rowIndexToId(rowIdToIndex(id)) == id
     
    Since:
    14 May 2014
    Author:
    Mark Taylor
    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      java.lang.Class<I> getIdClass()
      Returns the type of object used for representing row indices.
      long rowIdToIndex​(I id)
      Returns the table row index corresponding to a given typed identifier.
      I rowIndexToId​(long index)
      Returns a typed identifer corresponding to a given row index.
    • Method Detail

      • getIdClass

        java.lang.Class<I> getIdClass()
        Returns the type of object used for representing row indices.
        Returns:
        mapper object class
      • rowIdToIndex

        long rowIdToIndex​(I id)
        Returns the table row index corresponding to a given typed identifier.
        Parameters:
        id - identifier object
        Returns:
        corresponding row index
      • rowIndexToId

        I rowIndexToId​(long index)
        Returns a typed identifer corresponding to a given row index.
        Parameters:
        index - row index
        Returns:
        corresponding identifier object