public void reduce(Text key, Iterable<IntWritable> values, Context context)
throws IOException, InterruptedException {
int sum = 0;
for (IntWritable val : values) {
sum++;
}
context.write(new IntWritable(sum), NullWritable.get());
}
public void reduce(StockRecord key, Iterable<NullWritable> values, Context context)
throws IOException, InterruptedException {
context.write(key, NullWritable.get());
}
@Override
protected void map(LongWritable key, StockRecord value, Context context)
throws IOException, InterruptedException {
context.write(value, NullWritable.get());
}