/**
  * @param QOM\DescendantNodeJoinConditionInterface $condition
  *
  * @return string
  */
 public function walkDescendantNodeJoinCondition(QOM\DescendantNodeJoinConditionInterface $condition)
 {
     $rightAlias = $this->getTableAlias($condition->getDescendantSelectorName());
     $leftAlias = $this->getTableAlias($condition->getAncestorSelectorName());
     return "{$rightAlias}.path LIKE CONCAT({$leftAlias}.path, '/%') ";
 }
 /**
  * DescendantNodeJoinCondition ::=
  *   'ISDESCENDANTNODE(' descendantSelectorName ','
  *                       ancestorSelectorName ')'
  *   descendantSelectorName ::= selectorName
  *   ancestorSelectorName ::= selectorName
  *
  * @param  QOM\DescendantNodeJoinConditionInterface $condition
  * @return string
  */
 protected function convertDescendantNodeJoinCondition(QOM\DescendantNodeJoinConditionInterface $condition)
 {
     return $this->generator->evalDescendantNodeJoinCondition($condition->getDescendantSelectorName(), $condition->getAncestorSelectorName());
 }