/**
* Request a lock for all arrays that will be accessed by this operator.
* Calls requestLock with the write lock over the target array (array inserted into)
* @param query the query context
*/
void inferArrayAccess(std::shared_ptr<Query>& query)
{
LogicalOperator::inferArrayAccess(query);
SCIDB_ASSERT(_parameters.size() > 0);
SCIDB_ASSERT(_parameters[0]->getParamType() == PARAM_ARRAY_REF);
const string& arrayNameOrg = ((std::shared_ptr<OperatorParamReference>&)_parameters[0])->getObjectName();
SCIDB_ASSERT(ArrayDesc::isNameUnversioned(arrayNameOrg));
std::string arrayName;
std::string namespaceName;
query->getNamespaceArrayNames(arrayNameOrg, namespaceName, arrayName);
ArrayDesc srcDesc;
SCIDB_ASSERT(!srcDesc.isTransient());
scidb::namespaces::Communicator::getArrayDesc(
namespaceName, arrayName, SystemCatalog::ANY_VERSION, srcDesc);
const SystemCatalog::LockDesc::LockMode lockMode =
srcDesc.isTransient() ? SystemCatalog::LockDesc::XCL : SystemCatalog::LockDesc::WR;
std::shared_ptr<SystemCatalog::LockDesc> lock(
make_shared<SystemCatalog::LockDesc>(
namespaceName,
arrayName,
query->getQueryID(),
Cluster::getInstance()->getLocalInstanceId(),
SystemCatalog::LockDesc::COORD,
lockMode));
std::shared_ptr<SystemCatalog::LockDesc> resLock = query->requestLock(lock);
SCIDB_ASSERT(resLock);
SCIDB_ASSERT(resLock->getLockMode() >= SystemCatalog::LockDesc::WR);
}
