#include <DbXml.hpp>
XmlIndexSpecification XmlContainer::getIndexSpecification()
XmlIndexSpecification
XmlContainer::getIndexSpecification(XmlTransaction &txn,
u_int32_t flags = 0)
Retrieves the current indexing specification for the container. The indexing specification can be modified using XmlContainer::setIndexSpecification.
If the operation is to be transaction-protected, the
txn parameter is an
XmlTransaction
handle
returned from XmlManager::createTransaction.
This parameter must be set to one of the following values:
DB_RMW
Acquire write locks instead of read locks when doing the read, if locking is configured. Setting this flag can eliminate deadlock during a read-modify-write cycle by acquiring the write lock during the read part of the cycle so that another thread of control acquiring a read lock for the same item, in its own read-modify-write cycle, will not result in deadlock.
The XmlContainer::getIndexSpecification
method may fail and throw
XmlException
, encapsulating one of the
following non-zero errors:
An error occurred in an underlying Berkeley DB database. The XmlException::getDbErrno method will return the error code for the error.