Interface ContextDerivedData.DerivedCalculator

  • Enclosing class:
    ContextDerivedData

    public static interface ContextDerivedData.DerivedCalculator
    A way of actually doing the calculations.
    • Method Detail

      • lookup

        java.lang.Object lookup​(java.lang.Object row)
        Get the results of the calculation from the row. Allows some caching.
        Parameters:
        row - the row
        Returns:
        the result, perhaps a Long for retained size