SDO_DataObject::getContainer — Get a data object's container
This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.
Get the data object which contains this data object.
Returns the SDO_DataObject which contains this SDO_DataObject, or returns NULL if this is a root SDO_DataObject (i.e. it has no container).