@Override
	protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
		String[] line = value.toString().split(inDelimiter);
		String outputLine = "";
		for (int i = 0; i < line.length; i++) {
			if (i == Integer.parseInt(targetColumn)) {
				if (line[i].equals(oldValue))
					line[i] = newValue;
			}
			outputLine = outputLine + line[i] + outDelimiter;
		}
		context.write(NullWritable.get(), new Text(outputLine.substring(0, outputLine.length() - 1)));
	}