Method getExamples

src/org/apache/pig/PigServer.java:1370–1399

(String alias)

    }

    public Map<Operator, DataBag> getExamples(String alias) throws IOException {
        try {
            if (currDAG.isBatchOn() && alias != null) {
                currDAG.parseQuery();
                currDAG.buildPlan( null );
                execute();
            }
            currDAG.parseQuery();
            currDAG.skipStores();
            currDAG.buildPlan( alias );
            currDAG.compile();
        } catch (IOException e) {
            //Since the original script is parsed anyway, there should not be an
            //error in this parsing. The only reason there can be an error is when
            //the files being loaded in load don't exist anymore.
            e.printStackTrace();
        }

        ExampleGenerator exgen = new ExampleGenerator( currDAG.lp, pigContext );
        try {
            return exgen.getExamples();
        } catch (ExecException e) {
            e.printStackTrace(System.out);
            throw new IOException("ExecException" , e);
        } catch (Exception e) {
            e.printStackTrace(System.out);
            throw new IOException("Exception ", e);
        }

    }

    public void printHistory(boolean withNumbers) {