/**
* Initialize path manager
* @throws epExceptionQueryPath
*/
public function initialize()
{
// instantiate alias manager
if (!$this->am) {
if (!($this->am = new epQueryAliasManager())) {
throw new epExceptionQueryPath('Cannot instantiate alias manager');
}
}
$this->am->reset();
// reset primary root
$this->proot = false;
// array to hold alias to root lookup
$this->alias2root = array();
// reset sql parts
$this->sql_parts = array();
// reset aliases_primary table
$this->aliases_primary = array();
// reset alias_secondary table
$this->aliases_secondary = array();
// reset counter for contained aliases
$this->num_contained_aliases = 0;
}
