/**
* Return the expression's query criteria.
*
* @see Expr::getQuery()
* @return array
*/
public function getQueryArray()
{
return $this->expr->getQuery();
}
/**
* Negates an expression for the current field.
*
* @see Builder::not()
* @see http://docs.mongodb.org/manual/reference/operator/not/
* @param array|Expr $expression
* @return self
*/
public function not($expression)
{
return $this->operator('$not', $expression instanceof Expr ? $expression->getQuery() : $expression);
}
/**
* {@inheritdoc}
*/
public function getExpression()
{
return array('$match' => $this->query->getQuery());
}