Space complexity in find max value

In the code you just implemented in the previous exercise, what was the space complexity of the findMaxValue method?

public int findMaxValue(int[] data) {
  // Initialize the maximum value to the first element
  int max = data[0];

  for (int value : data) {
    // Update max if current element is greater
    if (value > max) {
      max = value;
    }
  }

  return max;
}