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NCBI C++ ToolKit: CSDBAPI Class Reference

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#include <dbapi/simple/sdbapi.hpp>

Definition at line 1135 of file sdbapi.hpp.

Definition at line 1158 of file sdbapi.hpp.

See also

UpdateMirror

Mirror is working on the same server as before.

Switched to a new master.

All databases in the mirror are unavailable.

Definition at line 1170 of file sdbapi.hpp.

Initialize SDBAPI.

Creates minimum number of connections required for each pool configured in application's configuration file. If openning of some of those connections failed then method will return FALSE, otherwise TRUE.

Definition at line 1327 of file sdbapi.cpp.

References NStr::CompareCase(), ctx, IRegistry::EnumerateSections(), CNcbiApplicationAPI::GetConfig(), impl::CDBConnParamsBase::GetParam(), CNcbiApplication::Instance(), ITERATE, result, s_GetDBContext(), and CSDB_ConnectionParam::x_FillLowerParams().

Get new CBlobStoreDynamic object (to be owned by caller).

Parameters

param Connection parameters; only Service, Username, and Password apply here, though. table_name Name of the table holding the blobs (structure to be deduced by inspection). flags Flags governing compression and transaction logging. image_limit Maximum size of a single blob (to be split across columns as needed).

Definition at line 1726 of file sdbapi.cpp.

References CSDB_ConnectionParam::ePassword, ERR_POST_X_ONCE, CSDB_ConnectionParam::eService, CSDB_ConnectionParam::eUsername, flags, fNBS_IsText, CSDB_ConnectionParam::Get(), s_CheckCompressionFlags(), s_GetDBContext(), s_TranslateBlobStoreFlags(), table_name, and Warning().

Check for master/mirror switch.

If switch is detected or if all databases in the mirror become unavailable, then all connections to the "old" master server will be immediately invalidated, so that any subsequent database operation on them (via objects CQuery and CBulkInsert) would cause an error. The affected CDatabase objects will be automatically invalidated too. User code will have to explicitly re-connect (which will open connection to the new master, if any).

Note

If the database resource is in any way misconfigured, then an exception will be thrown.

Parameters

dbservice Database resource name servers List of database servers, with the master one first. error_message Detailed error message (if any).

Returns

Result code

Definition at line 1480 of file sdbapi.cpp.

References impl::CDriverContext::CloseConnsForPool(), conn, SMirrorInfo::conn_params, IDataSource::CreateConnection(), ds_init, eConnEstablished, eConnInitializing, eConnNotConnected, eMirror_NewMaster, eMirror_Steady, eMirror_Unavailable, ERASE_ITERATE, eRetriable_No, ERR_POST_X, eTakeOwnership, AutoPtr< X, Del >::get(), CDbapiConnMgr::GetConnectionFactory(), impl::CDBConnParamsBase::GetDatabaseName(), impl::CDBConnParamsBase::GetParam(), CRef< C, Locker >::GetPointer(), impl::CDBConnParamsBase::GetServerName(), CDBConnectionFactory::GetServersList(), CDbapiConnMgr::Instance(), ITERATE, kEmptyStr, SMirrorInfo::master, NCBI_THROW, NStr::NumericToString(), AutoPtr< X, Del >::reset(), s_GetDataSource(), s_GetDBContext(), impl::CDriverContext::SatisfyPoolMinimum(), SMirrorInfo::servers, CDBConnParamsBase::SetParam(), CDBConnParamsBase::SetServerName(), state::state(), stmt, Warning(), CDBConnectionFactory::WorkWithSingleServer(), and CSDB_ConnectionParam::x_FillLowerParams().

The documentation for this class was generated from the following files:

• include/dbapi/simple/sdbapi.hpp
• src/dbapi/simple/sdbapi.cpp

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