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NCBI C++ ToolKit: src/dbapi/driver/public.cpp Source File

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unique_ptr<CDB_LangCmd> auto_stmt

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Helper class to allow safe initialization from higher-layer objects.

Incapsulate compile time information such as __FILE__, __LINE__, NCBI_MODULE, current function.

CTempString implements a light-weight string on top of a storage buffer whose lifetime management is ...

virtual CDBParams & GetDefineParams(void)

Get meta-information about defined parameters.

const string & GetQuery(void) const

virtual CDBParams & GetBindParams(void)

Binding.

bool WasCanceled(void) const

unsigned int m_RowsSentAtBatchStart

virtual bool Update(const string &table_name, const string &upd_query)

Update the last fetched row.

virtual bool CommitBCPTrans(void)

Complete batch – to store all rows transferred by far in this batch into the table.

void SetRecompile(bool recompile=true)

Set the "recompile before execute" flag for the stored proc.

virtual void AddOrderHint(CTempString columns)

Add "ORDER" hint.

virtual CDB_Result * Result(void)

Get result set.

virtual void AddHint(CDB_BCPInCmd::EBCP_Hints hint, unsigned int value)

Add hint with value.

virtual bool HasFailed(void) const

virtual void SetHints(CTempString hints)

Set hints by one call.

void DumpResults(void)

Dump the results of the command if result processor is installed for this connection,...

virtual bool UpdateBlob(unsigned int item_num, CDB_Stream &data, bool log_it=true)

virtual CDB_Result * OpenCursor(void)

Open the cursor.

virtual bool EndBCP(void)

Complete the BCP and store all rows transferred in last batch into the table.

virtual CDB_SendDataCmd * SendDataCmd(unsigned int item_num, size_t size, bool log_it=true, bool dump_results=true)

void AttachTo(CDB_LangCmd *interface)

virtual bool Delete(const string &table_name)

Delete the last fetched row.

virtual bool CloseCursor(void)

Close the cursor.

unsigned int m_BatchesSent

virtual bool Cancel(void)

Cancel the command execution.

virtual bool HasMoreResults(void) const

virtual bool Send(void)

Send command to the server.

unsigned int GetRowsInCurrentBatch(void) const

bool More(const string &query_text)

Add more text to the language command.

virtual int RowCount(void) const =0

Get the number of rows affected by the command Special case: negative on error or if there is no way ...

virtual bool Abort(void)=0

abort the connection Attention: it is not recommended to use this method unless you absolutely have t...

virtual void SetTimeout(size_t nof_secs)=0

virtual TSockHandle GetLowLevelHandle(void) const

Get OS handle of the socket represented by the connection.

void AttachTo(CDB_Connection *interface)

virtual CDB_SendDataCmd * SendDataCmd(I_BlobDescriptor &desc, size_t data_size, bool log_it=true, bool dump_results=true)=0

"Send-data" command

virtual string GetVersionString(void) const

const string & UserName(void) const

I_DriverContext * Context(void) const

Get pointer to the driver context.

const string & GetDatabaseName(void) const

virtual CDB_RPCCmd * RPC(const string &rpc_name)=0

Remote procedure call.

CDB_ResultProcessor * SetResultProcessor(CDB_ResultProcessor *rp)

bool IsReusable(void) const

Check if this connection is a reusable one.

CDBConnParams::EServerType GetServerType(void)

unsigned int GetReuseCount(void) const

const string & Password(void) const

virtual string GetDriverName(void) const

virtual void SetCancelTimeout(size_t nof_secs)=0

virtual bool IsAlive(void)=0

Check out if connection is alive (this function doesn't ping the server, it just checks the status of...

virtual CDB_BCPInCmd * BCPIn(const string &table_name)=0

"Bulk copy in" command

const string & ServerName(void) const

Get the server name, user login name, and password.

virtual I_DriverContext::TConnectionMode ConnectMode(void) const =0

Get the bitmask for the connection mode (BCP, secure login, ...)

virtual bool Refresh(void)=0

Reset the connection to the "ready" state (cancel all active commands)

const string & PoolName(void) const

Find out which connection pool this connection belongs to.

virtual void SetDatabaseName(const string &name)

virtual bool SendData(I_BlobDescriptor &desc, CDB_Stream &lob, bool log_it=true)=0

Shortcut to send text and image to the server without using the "Send-data" command (SendDataCmd)

virtual size_t GetCancelTimeout(void) const

void PushMsgHandler(CDB_UserHandler *h, EOwnership ownership=eNoOwnership)

Put the message handler into message handler stack.

virtual CDB_CursorCmd * Cursor(const string &cursor_name, const string &query, unsigned int batch_size=1)=0

Cursor.

void PopMsgHandler(CDB_UserHandler *h)

Remove the message handler (and all above it) from the stack.

virtual size_t GetTimeout(void) const

virtual CDB_LangCmd * LangCmd(const string &lang_query)=0

These methods: LangCmd(), RPC(), BCPIn(), Cursor() and SendDataCmd() create and return a "command" ob...

virtual CDB_Object * GetItem(CDB_Object *item_buf=0, I_Result::EGetItem policy=I_Result::eAppendLOB)=0

Get a result item (you can use either GetItem or ReadItem).

virtual I_BlobDescriptor * GetBlobDescriptor(void)=0

Get a descriptor for a BLOB column (for SendData).

virtual const CDBParams & GetDefineParams(void) const

virtual int CurrentItemNo(void) const =0

Return current item number we can retrieve (0,1,...) Return "-1" if no more items left (or available)...

virtual bool SkipItem(void)=0

Skip result item.

virtual int GetColumnNum(void) const =0

Return number of columns in the recordset.

virtual size_t ReadItem(void *buffer, size_t buffer_size, bool *is_null=0)=0

Read a result item body (for BLOB columns, mostly).

void AttachTo(CDB_Result *interface)

virtual EDB_ResType ResultType(void) const =0

Get type of the result.

virtual bool Fetch(void)=0

Fetch next row.

void AttachTo(CDB_SendDataCmd *interface)

virtual size_t SendChunk(const void *pChunk, size_t nofBytes)=0

Send chunk of data to the server.

virtual bool Cancel(void)=0

void DumpResults(void)

Dump the results of the command if result processor is installed for this connection,...

virtual bool HasMoreResults(void) const

virtual CDB_Result * Result(void)

Get result set.

static const char table_name[]

static const column_t columns[]

ETriState

Enumeration to represent a tristate value.

#define CHECK_DRIVER_WARNING(failed, message, err_code)

#define DATABASE_DRIVER_ERROR(message, err_code)

#define CHECK_DRIVER_ERROR(failed, message, err_code)

virtual EDB_Type GetDataType(const CDBParamVariant &param) const =0

Get data type for column in the resultset.

virtual const string & GetName(const CDBParamVariant &param, CDBParamVariant::ENameFormat format=CDBParamVariant::eSQLServerName) const =0

Get name of column.

virtual size_t GetMaxSize(const CDBParamVariant &param) const =0

Get maximum size in bytes for column.

static CTempString MakeName(const CTempString &name, ENameFormat &format)

virtual unsigned int GetNum(void) const =0

Get total number of columns in resultset.

virtual CDBParams & Bind(const CDBParamVariant &param, CDB_Object *value, bool out_param=false)

This method stores pointer to data.

static string MakePlainName(const CTempString &name)

ENameFormat GetFormat(void) const

virtual const CDB_Object * GetValue(const CDBParamVariant &param) const =0

Get value of column.

EDB_ResType

EDB_ResType::

const string & GetName(void) const

virtual EDB_ResType ResultType() const

Get type of the result.

impl::CResult * GetIResultPtr(void) const

virtual I_ConnectionExtra & GetExtraFeatures(void)

Get interface for extra features that could be implemented in the driver.

virtual ~CDB_SendDataCmd()

size_t GetCancelTimeout(void) const

Get timeout for command cancellation and connection closing.

virtual bool SendRow()

Send row to the server.

virtual int GetColumnNum(void) const

Return number of columns in the recordset.

virtual bool CompleteBatch()

Complete batch – to store all rows transferred by far in this batch into the table.

CAutoTrans(const CSubject &subject)

virtual void SetRecompile(bool recompile=true)

Set the "recompile before execute" flag for the stored proc Implementation-specific.

virtual CDB_SendDataCmd * SendDataCmd(unsigned int item_num, size_t size, bool log_it=true, bool discard_results=true)

Make "send-data" command.

virtual size_t ItemMaxSize(unsigned int item_num) const

Get size (in bytes) of a result item.

virtual int RowCount() const

Get the number of fetched rows Special case: negative on error or if there is no way that this comman...

virtual CDB_Result * Result()

Get result set.

virtual CDB_BCPInCmd * BCPIn(const string &table_name)

Make "bulk copy in" command.

virtual ~CDB_ResultProcessor()

virtual CDB_SendDataCmd * SendDataCmd(I_BlobDescriptor &desc, size_t data_size, bool log_it=true, bool discard_results=true)

Make "send-data" command.

impl::CConnection * m_ConnImpl

virtual bool WasCanceled() const

Implementation-specific.

virtual void SetCancelTimeout(size_t nof_secs)

Set timeout for command cancellation and connection closing.

virtual const string & UserName() const

Get the user user.

virtual ~CDB_Result()

Destructor.

virtual bool WasSent() const

Implementation-specific.

virtual string GetDriverName(void) const

virtual bool WasCanceled() const

Implementation-specific.

virtual CDB_Result * Result()

Get result set.

impl::CResult * m_ResImpl

impl::CResult & GetIResult(void) const

virtual bool Cancel()

Cancel the command execution.

impl::CSendDataCmd * m_CmdImpl

virtual bool HasFailed() const

Check if command has failed.

void SetConn(CDB_Connection *c)

virtual int RowCount() const

Get the number of rows affected by the command.

virtual CDB_Result * Result()

Get result set.

impl::CBaseCmd * m_CmdImpl

virtual bool Refresh()

Reset the connection to the "ready" state (cancel all active commands)

virtual bool UpdateBlob(unsigned int item_num, CDB_Stream &data, bool log_it=true)

virtual CDBParams & GetDefineParams(void)

Get meta-information about defined parameters.

virtual bool More(const string &query_text)

Add more text to the language command.

virtual CDB_Result * Open()

Open the cursor.

virtual bool WasSent() const

Implementation-specific.

virtual Uint4 Host() const

Get the host.

void AddOrderHint(CTempString columns)

Add "ORDER" hint.

virtual bool Send()

Send command to the server.

virtual CDBParams & GetBindParams(void)

Get meta-information about parameters.

void AddHint(EBCP_Hints hint, unsigned int value=0)

Add hint with value.

virtual CDBParams & GetBindParams(void)

Get meta-information about parameters.

virtual ~CDB_Connection()

Destructor.

virtual I_DriverContext::TConnectionMode ConnectMode() const

Get the bitmask for the connection mode (BCP, secure login, ...)

virtual bool Send()

Send command to the server.

virtual bool Delete(const string &table_name)

Delete the last fetched row.

virtual bool HasMoreResults() const

bool Bind(unsigned int column_num, CDB_Object *value)

virtual ~CDB_BlobDescriptor(void)

virtual bool SendData(I_BlobDescriptor &desc, CDB_Stream &lob, bool log_it=true)

Shortcut to send text and image to the server without using the "Send-data" command (SendDataCmd)

virtual bool CompleteBCP()

Complete the BCP and store all rows transferred in last batch into the table.

CDB_ResultProcessor * m_Next

CDB_ResultProcessor * m_Prev

virtual void DumpResults()

Dump the results of the command If result processor is installed for this connection,...

virtual CDBParams & GetBindParams(void)

Get meta-information about parameters.

impl::CBaseCmd * m_CmdImpl

CDB_BlobDescriptor(const string &table_name, const string &column_name, const string &search_conditions, ETDescriptorType column_type=eUnknown, ETriState has_legacy_type=eTriState_Unknown)

virtual string GetVersionString(void) const

Driver version, supplied here rather than by the context for ODBC's sake.

unsigned int GetReuseCount() const

Indicate how many times (if at all) this connection has been previously used.

virtual EDB_Type ItemDataType(unsigned int item_num) const

Get datatype of a result item.

virtual bool Close()

Close the cursor.

virtual I_DriverContext * Context() const

Get pointer to the driver context.

virtual int CurrentItemNo() const

Return current item number we can retrieve (0,1,...)

impl::CBaseCmd * m_CmdImpl

virtual bool IsAlive()

Check out if connection is alive.

virtual bool IsReusable() const

Check if this connection is a reusable one.

virtual CDBParams & GetDefineParams(void)

Get meta-information about defined parameters.

virtual void DumpResults()

Dump the results of the command If result processor is installed for this connection,...

virtual bool SkipItem()

Skip result item.

virtual bool Abort()

Abort the connection.

virtual void DumpResults()

Dump the results of the command If result processor is installed for this connection,...

void SetDatabaseName(const string &name)

Set database name.

virtual size_t SendChunk(const void *data, size_t size)

Send chunk of data to the server.

virtual CDB_LangCmd * LangCmd(const string &lang_query)

Make language command.

virtual CDB_CursorCmd * Cursor(const string &cursor_name, const string &query, unsigned int batch_size)

Make cursor command.

virtual bool HasFailed() const

Check if command has failed.

virtual bool Close(void)

Close an open connection.

size_t GetTimeout(void) const

Get connection timeout.

virtual size_t ReadItem(void *buffer, size_t buffer_size, bool *is_null=0)

Read a result item body (for BLOB columns, mostly).

virtual const string & PoolName() const

Find out which connection pool this connection belongs to.

virtual void PushMsgHandler(CDB_UserHandler *h, EOwnership ownership=eNoOwnership)

Put the message handler into message handler stack.

virtual const string & ServerName() const

Get the server name.

EBCP_Hints

Type of hint that can be set.

virtual const string & DatabaseName(void) const

Get the database name.

virtual Uint2 Port() const

Get the port.

virtual CDB_Object * GetItem(CDB_Object *item_buf=0, EGetItem policy=eAppendLOB)

Get a result item (you can use either GetItem or ReadItem).

virtual bool Cancel()

Cancel the BCP command.

virtual const char * ItemName(unsigned int item_num) const

Get name of a result item.

virtual unsigned int NofItems() const

Get # of items (columns) in the result.

virtual void PopMsgHandler(CDB_UserHandler *h)

Remove the message handler (and all above it) from the stack.

virtual CDBParams & GetBindParams(void)

Get meta-information about parameters.

virtual I_BlobDescriptor * GetBlobDescriptor()

Get a descriptor for a BLOB column (for SendData).

impl::CBaseCmd * m_CmdImpl

virtual void ProcessResult(CDB_Result &res)

The default implementation just dumps all rows.

virtual CDB_RPCCmd * RPC(const string &rpc_name)

Make remote procedure call command.

virtual bool Cancel(void)

virtual void SetTimeout(size_t nof_secs)

Set connection timeout.

void BeginTransaction(void)

virtual bool HasMoreResults() const

Return TRUE if it makes sense (at all) to call Result()

virtual int DescriptorType(void) const

virtual bool Cancel()

Cancel the command execution.

void SetHints(CTempString hints)

Set hints by one call. Resets everything that was set by Add*Hint().

virtual bool HasMoreResults() const

virtual const string & GetProcName(void) const

Get a name of the procedure.

virtual bool Update(const string &table_name, const string &upd_query)

Update the last fetched row.

virtual const string & Password() const

Get the password.

virtual const CDBParams & GetDefineParams(void) const

Get meta-information about rows in resultset.

virtual CDBParams & GetDefineParams(void)

Get meta-information about defined parameters.

virtual int RowCount() const

Get the number of rows affected by the command Special case: negative on error or if there is no way ...

virtual CDB_ResultProcessor * SetResultProcessor(CDB_ResultProcessor *rp)

Set new result-processor.

virtual bool Fetch()

Fetch next row.

string GetLogString(void) const

virtual size_t Size() const

#define NCBI_CURRENT_FUNCTION

Get current function name.

const CNcbiDiag & GetRef(void) const

Some compilers (e.g.

#define ERR_POST_X(err_subcode, message)

Error posting with default error code and given error subcode.

@ eDiag_Trace

Trace message.

#define NCBI_CATCH_ALL_X(err_subcode, message)

void Warning(CExceptionArgs_Base &args)

uint32_t Uint4

4-byte (32-bit) unsigned integer

uint16_t Uint2

2-byte (16-bit) unsigned integer

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

const_iterator end() const

Return an iterator to the string's ending position (one past the end of the represented sequence)

CTempString & assign(const char *src_str, size_type len)

Assign new values to the content of the a string.

const char * const_iterator

const char * data(void) const

Return a pointer to the array represented.

static enable_if< is_arithmetic< TNumeric >::value||is_convertible< TNumeric, Int8 >::value, string >::type NumericToString(TNumeric value, TNumToStringFlags flags=0, int base=10)

Convert numeric value to string.

enum ENcbiOwnership EOwnership

Ownership relations between objects.

Definition of all error codes used in dbapi libraries (dbapi_driver.lib and others).

The blob sat and sat key Both must be positive integers</td > n< td > Non empty string The interpretation of the blob id depends on a processor Cassandra n processor expects the following format

const struct ncbi::grid::netcache::search::fields::SIZE size

const GenericPointer< typename T::ValueType > T2 value

double r(size_t dimension_, const Int4 *score_, const double *prob_, double theta_)

#define TRACE_PARAMS(params)

unsigned int ConvertI2UI(int value)

#define CHECK_COMMAND(cmd)

#define CHECK_CONNECTION(conn)

#define CHECK_RESULT(res)

static void s_TraceParams(const CDBParams &params, const CDiagCompileInfo &info)

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