Examples of org.apache.pig.data.TupleFactory.newTuple()

org.apache.pig.data.TupleFactory.newTuple()
Create an empty tuple. This should be used as infrequently as possible, use newTuple(int) instead. @return Empty new tuple.

        r = func.exec(t3);
        assertTrue(r==null);
        
        String matchRegex = "^(.+)\\b\\s+is a\\s+\\b(.+)$";
        TupleFactory tupleFactory = TupleFactory.getInstance();
        Tuple te1 = tupleFactory.newTuple(2);
        te1.set(0,"this is a match");
        te1.set(1, matchRegex);
        
        Tuple te2 = tupleFactory.newTuple(2);
        te2.set(0, "no match");

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        TupleFactory tupleFactory = TupleFactory.getInstance();
        Tuple te1 = tupleFactory.newTuple(2);
        te1.set(0,"this is a match");
        te1.set(1, matchRegex);
        
        Tuple te2 = tupleFactory.newTuple(2);
        te2.set(0, "no match");
        te2.set(1, matchRegex);
        
        Tuple te3 = tupleFactory.newTuple(2);
        te3.set(0, null);

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        Tuple te2 = tupleFactory.newTuple(2);
        te2.set(0, "no match");
        te2.set(1, matchRegex);
        
        Tuple te3 = tupleFactory.newTuple(2);
        te3.set(0, null);
        te3.set(1, matchRegex);
     
        REGEX_EXTRACT_ALL funce = new REGEX_EXTRACT_ALL();
        Tuple re = funce.exec(te1);

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        assertEquals(input, output);
        
        TOP top = new TOP();
        TupleFactory tupleFactory = TupleFactory.getInstance();
        BagFactory bagFactory = DefaultBagFactory.getInstance();
        Tuple inputTuple = tupleFactory.newTuple(3);
        DataBag dBag = bagFactory.newDefaultBag();
        
        // set N = 10 i.e retain top 10 tuples
        inputTuple.set(0, 10);
        // compare tuples by field number 1

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        // set the data bag containing the tuples
        inputTuple.set(2, dBag);


        // generate tuples of the form (group-1, 1), (group-2, 2) ...
        for (long i = 0; i < 100; i++) {
            Tuple nestedTuple = tupleFactory.newTuple(2);
            nestedTuple.set(0, "group-" + i);
            nestedTuple.set(1, i);
            dBag.add(nestedTuple);
        }

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        // two intermediate results


        DataBag intermedBag = bagFactory.newDefaultBag();
        intermedBag.add(init1);
        intermedBag.add(init2);
        Tuple intermedInput = tupleFactory.newTuple(intermedBag);
        Tuple intermedOutput1 = (new TOP.Intermed()).exec(intermedInput);
        Tuple intermedOutput2 = (new TOP.Intermed()).exec(intermedInput);
        checkItemsGT((DataBag)intermedOutput1.get(2), 1, 94);


        // final result

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        // final result
        DataBag finalInputBag = bagFactory.newDefaultBag();
        finalInputBag.add(intermedOutput1);
        finalInputBag.add(intermedOutput2);
        Tuple finalInput = tupleFactory.newTuple(finalInputBag);
        outBag = (new TOP.Final()).exec(finalInput);
        assertEquals(outBag.size(), 10L);
        checkItemsGT(outBag, 1, 96);
    }

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    }
    
    @Test
    public void testTOKENIZE() throws Exception {
        TupleFactory tf = TupleFactory.getInstance();
        Tuple t1 = tf.newTuple(1);
        t1.set(0, "123 456\"789");
        Tuple t2 = tf.newTuple(1);
        t2.set(0, null);
        Tuple t3 = tf.newTuple(0);

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    @Test
    public void testTOKENIZE() throws Exception {
        TupleFactory tf = TupleFactory.getInstance();
        Tuple t1 = tf.newTuple(1);
        t1.set(0, "123 456\"789");
        Tuple t2 = tf.newTuple(1);
        t2.set(0, null);
        Tuple t3 = tf.newTuple(0);
        
        TOKENIZE f = new TOKENIZE();
        DataBag b = f.exec(t1);

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        TupleFactory tf = TupleFactory.getInstance();
        Tuple t1 = tf.newTuple(1);
        t1.set(0, "123 456\"789");
        Tuple t2 = tf.newTuple(1);
        t2.set(0, null);
        Tuple t3 = tf.newTuple(0);
        
        TOKENIZE f = new TOKENIZE();
        DataBag b = f.exec(t1);
        assertTrue(b.size()==3);
        Iterator<Tuple> i = b.iterator();

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