class BelievePriceSIP extends BeliefTransferAdapter {
  public BelievePriceSIP() {
    super(BookSellerCapabilities.this, 
          SLPatternManip.fromFormula("(selling_price ??isbn ??price ??seller)"),
          SLPatternManip.fromTerm("??agent"));
  }

  protected ArrayList doApply(MatchResult matchFormula, MatchResult matchAgent, ArrayList acceptResult, ArrayList refuseResult) {
    return getAgentName().equals(matchFormula.term("seller") ?
      // If the selling price to adopt is mine, refuse it
      refuseResult :
      // Else adopt it
      acceptResult;
  }
}