public FactLine createLine(DocLine docLine,MAccount account,int C_Currency_ID,BigDecimal Amt){
  if (Amt.signum() < 0)   return createLine(docLine,account,C_Currency_ID,null,Amt.abs());
 else   return createLine(docLine,account,C_Currency_ID,Amt,null);
}

public FactLine createLine ( DocLine docLine , MAccount account , int C_Currency_ID , BigDecimal Amt ) { if ( Amt . signum ( ) < 0 ) return createLine ( docLine , account , C_Currency_ID , null , Amt . abs ( ) ) ; else return createLine ( docLine , account , C_Currency_ID , Amt , null ) ; }
create and convert fact line . used to create either a dr or cr entry
