Examples of org.apache.pig.data.BagFactory

org.apache.pig.data.BagFactory
Factory for constructing different types of bags. This class is abstract so that users can override the bag factory if they desire to provide their own that returns their implementation of a bag. If the property pig.data.bag.factory.name is set to a class name and pig.data.bag.factory.jar is set to a URL pointing to a jar that contains the above named class, then getInstance() will create an instance of the named class using the indicated jar. Otherwise, it will create an instance of DefaultBagFactory.

        TupleFactory tf = TupleFactory.getInstance();
        return tf.newTuple( objList );
    }


    static DataBag createDataBag() {
        BagFactory bagFactory = BagFactory.getInstance();
        return bagFactory.newDefaultBag();
    }

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<String, Object> mapInMap = new HashMap<String, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<String, Object> mapInMap = new HashMap<String, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<String, Object> mapInMap = new HashMap<String, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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    }


    @Test
    public void testDIFF() throws Exception {
        // Test it in the case with two bags.
        BagFactory bf = BagFactory.getInstance();
        TupleFactory tf = TupleFactory.getInstance();


        DataBag b1 = bf.newDefaultBag();
        DataBag b2 = bf.newDefaultBag();
        for (int i = 0; i < 10; i++) b1.add(tf.newTuple(new Integer(i)));
        for (int i = 0; i < 10; i += 2) b2.add(tf.newTuple(new Integer(i)));
        Tuple t = tf.newTuple(2);
        t.set(0, b1);
        t.set(1, b2);

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<String, Object> mapInMap = new HashMap<String, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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    }


    @Test
    public void testDIFF() throws Exception {
        // Test it in the case with two bags.
        BagFactory bf = BagFactory.getInstance();
        TupleFactory tf = TupleFactory.getInstance();


        DataBag b1 = bf.newDefaultBag();
        DataBag b2 = bf.newDefaultBag();
        for (int i = 0; i < 10; i++) b1.add(tf.newTuple(new Integer(i)));
        for (int i = 0; i < 10; i += 2) b2.add(tf.newTuple(new Integer(i)));
        Tuple t = tf.newTuple(2);
        t.set(0, b1);
        t.set(1, b2);

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<String, Object> mapInMap = new HashMap<String, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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        TupleFactory tf = TupleFactory.getInstance();
        return tf.newTuple( objList );
    }


    static DataBag createDataBag() {
        BagFactory bagFactory = BagFactory.getInstance();
        return bagFactory.newDefaultBag();
    }

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            objList.add(new Double(1.0));
            objList.add(new Float(1.0));
            objList.add(new String("World!"));
            Tuple tuple = tupleFactory.newTuple(objList);


            BagFactory bagFactory = BagFactory.getInstance();
            DataBag bag = bagFactory.newDefaultBag();
            bag.add(tuple);


            Map<Object, Object> mapInMap = new HashMap<Object, Object>();
            mapInMap.put("int", new Integer(10));
            mapInMap.put("float", new Float(10.0));

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