@Override
    public int getOpNumByName(String opName) {
        try {
            DifferentialFunction op =  DifferentialFunctionClassHolder.getInstance().getInstance(opName);
            return  op.opNum();
        } catch (Exception e) {
            throw new RuntimeException("OpName failed: [" + opName + "]",e);
        }
    }
@Override
    public int getOpNumByName(String opName) {
        try {
            DifferentialFunction op =  DifferentialFunctionClassHolder.getInstance().getInstance(opName);
            return  op.opNum();
        } catch (Exception e) {
            throw new RuntimeException("OpName failed: [" + opName + "]",e);
        }
    }
@ Override public int getOpNumByName ( String opName ) { try { DifferentialFunction op = DifferentialFunctionClassHolder . getInstance ( ) . getInstance ( opName ) ; return op . opNum ( ) ; } catch ( Exception e ) { throw new RuntimeException ( "OpName failed: [" + opName + "]" , e ) ; } }
This method returns op id number for given opName

@param opName
@return
This method returns op id number for given opName