/**
  * @throws WrongArgumentException
  * @return LogicalChain
  **/
 public static function getOpenPoint($left, $right, $point)
 {
     Assert::isFalse($point === null, 'how can i build logic from emptyness?');
     $point = new DBValue($point);
     $chain = new LogicalChain();
     $chain->expOr(Expression::orBlock(Expression::andBlock(Expression::notNull($left), Expression::notNull($right), Expression::between($point, $left, $right)), Expression::andBlock(Expression::isNull($left), Expression::ltEq($point, $right)), Expression::andBlock(Expression::isNull($right), Expression::ltEq($left, $point)), Expression::andBlock(Expression::isNull($left), Expression::isNull($right))));
     return $chain;
 }
 /**
  * @return LogicalChain
  **/
 private static function block($args, $logic)
 {
     return LogicalChain::block($args, $logic);
 }