Method invert

basex-core/src/main/java/org/basex/query/expr/Cmp.java:81–84

If possible, returns an optimized expression with inverted operands. @param cc compilation context @return original or modified expression @throws QueryException query exception

(final CompileContext cc)

   * @throws QueryException query exception
   */
  public final Expr invert(final CompileContext cc) throws QueryException {
    final Expr expr = invert();
    return expr != null ? expr.optimize(cc) : this;
  }

  /**
   * If possible, returns an expression with inverted operands.