/** Initialize the custom comparators. Creates a quick access array for the custom comparators. */
private void initComparators() {
TupleMRConfigBuilder.initializeComparators(
context.getHadoopContext().getConfiguration(), tupleMRConfig);
customComparators = new RawComparator<?>[maxDepth + 1];
for (int i = minDepth; i <= maxDepth; i++) {
SortElement element = tupleMRConfig.getCommonCriteria().getElements().get(i);
if (element.getCustomComparator() != null) {
customComparators[i] = element.getCustomComparator();
}
}
}
