Method replace

src/org/apache/pig/newplan/OperatorPlan.java:173–173

This method replace the oldOperator with the newOperator, make all connection to the new operator in the place of old operator @param oldOperator operator to be replaced @param newOperator operator to replace @throws FrontendException

(Operator oldOperator, Operator newOperator)

     * @throws FrontendException
     */
    public void replace(Operator oldOperator, Operator newOperator) throws FrontendException;
    
    /**
     * This method remove a node operatorToRemove. It also Connect all its successors to