Method transform

src/org/apache/pig/newplan/optimizer/Transformer.java:45–45

Transform the tree @param matched the sub-set of the plan that matches the pattern. This subset has the same graph as the pattern, but the operators point to the same objects as the plan to be matched. @throws Transformer

(OperatorPlan matched)

     * @throws Transformer
     */
    public abstract void transform(OperatorPlan matched) throws FrontendException;
    
    /**
     * Report what parts of the tree were transformed.  This is so that