package gw.rating.rtm.matchop

uses java.lang.Comparable

@ReadOnly
interface ParamConversion {
  /**
   * Convert type of input param v to match underlying column
   * if the input value is numeric (Integer, BigDecimal) or Typekey.
   * Not having type mismatches can help simplify the matching code.
   * It is necessary to do this for database queries (the database layer
   * is not tolerant of type mismatches) but it should also be done for
   * in-memory matches because it prevents inconsistent behavior if the
   * lookup strategy changes.
   */
  function convertParam(v : Comparable, paramIndex : int = 0) : Comparable
}