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SDO_Model_ReflectionDataObject::getContainmentProperty — Get the property which defines the containment relationship to the data object
此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。
Get the SDO_Model_Property that contains the SDO_DataObject. This method is used to navigate up to the parent's property which contains the data object which has been reflected upon.
None.
Returns the container's SDO_Model_Property which references the
SDO_DataObject, or NULL if it is a root SDO_DataObject.