Package org.apache.pig.data

Examples of org.apache.pig.data.Tuple.readFields()


        // instantiate each object as a tuple.
        Tuple t1 = mFact.newTuple();
        Tuple t2 = mFact.newTuple();
        try {
            t1.readFields(new DataInputStream(new ByteArrayInputStream(b1, s1, l1)));
            t2.readFields(new DataInputStream(new ByteArrayInputStream(b2, s2, l2)));
        } catch (IOException ioe) {
            mLog.error("Unable to instantiate tuples for comparison: " + ioe.getMessage());
            throw new RuntimeException(ioe.getMessage(), ioe);
        }
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            // instantiate each object as a tuple.
            Tuple t1 = mFact.newTuple();
            Tuple t2 = mFact.newTuple();
            try {
                t1.readFields(new DataInputStream(new ByteArrayInputStream(b1, s1 + 1, l1 - 1)));
                t2.readFields(new DataInputStream(new ByteArrayInputStream(b2, s2 + 1, l2 - 1)));
            } catch (IOException ioe) {
                mLog.error("Unable to instantiate tuples for comparison: " +
                    ioe.getMessage());
                throw new RuntimeException(ioe.getMessage(), ioe);
            }
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            }
            if(b == -1) return null;
            break;
        }
        Tuple t = new Tuple();
        t.readFields(inData);
        return t;
    }

    public void bindTo(String fileName, BufferedPositionedInputStream in, long offset, long end) throws IOException {
        this.in = in;
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        FileInputStream fis = new FileInputStream(file);
        DataInput in = new DataInputStream(fis);
        for (int i = 0; i < 2; i++) {
            Tuple after = tf.newTuple();
            after.readFields(in);

            Object o = after.get(0);
            assertTrue("isa Tuple", o instanceof Tuple);
            Tuple t3 = (Tuple)o;
            o = t3.get(0);
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        FileInputStream fis = new FileInputStream(file);
        DataInput in = new DataInputStream(fis);

        Tuple after = tf.newTuple();
        after.readFields(in);

        Object o = after.get(0);
        assertTrue("isa InternalMap", o instanceof InternalMap);

        InternalMap m = (InternalMap)o;
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            // instantiate each object as a tuple.
            Tuple t1 = mFact.newTuple();
            Tuple t2 = mFact.newTuple();
            try {
                t1.readFields(new DataInputStream(new ByteArrayInputStream(b1, s1 + 1, l1 - 1)));
                t2.readFields(new DataInputStream(new ByteArrayInputStream(b2, s2 + 1, l2 - 1)));
            } catch (IOException ioe) {
                mLog.error("Unable to instantiate tuples for comparison: " +
                    ioe.getMessage());
                throw new RuntimeException(ioe.getMessage(), ioe);
            }
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  }

  @Override
  public void readFields(DataInput in) throws IOException {
    Tuple t = tf.newTuple(realTuple.size());
    t.readFields(in);
    reference(t);
  }

  @Override
  public void write(DataOutput out) throws IOException {
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