Review

15

org/apache/lucene/search/TermRangeTermEnum.java

termCompare(Term)

class TermRangeTermEnum {
  protected boolean termCompare(Term term) {
    if (collator == null) {
      // Use Unicode code point ordering
      boolean checkLower = false;
      if (!includeLower) // make adjustments to set to exclusive
        checkLower = true;
      if (term != null && term.field() == field) { // interned comparison
        if (!checkLower || null==lowerTermText || term.text().compareTo(lowerTermText) > 0) {
          checkLower = false;
          if (upperTermText != null) {
            int compare = upperTermText.compareTo(term.text());
            /*
             * if beyond the upper term, or is exclusive and this is equal to
             * the upper term, break out
             */
            if ((compare < 0) ||
                (!includeUpper && compare==0)) {
              endEnum = true;
              return false;
            }
          }
          return true;
        }
      } else {
        // break
        endEnum = true;
        return false;
      }
      return false;
    } else {
      if (term != null && term.field() == field) { // interned comparison
        if ((lowerTermText == null
            || (includeLower
                ? collator.compare(term.text(), lowerTermText) >= 0
                : collator.compare(term.text(), lowerTermText) > 0))
           && (upperTermText == null
               || (includeUpper
                   ? collator.compare(term.text(), upperTermText) <= 0
                   : collator.compare(term.text(), upperTermText) < 0))) {
          return true;
        }
        return false;
      }
      endEnum = true;
      return false;
    }
  }

}