public function __construct($joinTable, $joinColumn, $joinedColumn, $joinedColumnTable, $alias = null, $type = 'LEFT', $onClauses)
{
$this->joinTable = $joinTable;
$this->joinColumn = $joinColumn;
$this->joinedColumn = $joinedColumn;
$this->_joinedColumnTable = $joinedColumnTable;
$this->alias = $alias;
$this->type = $type;
$this->onClauses = $onClauses;
}