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NCBI C++ ToolKit: include/db/bdb/bdb_file.hpp Source File

kDefaultDatabase[];

Open(

& filename,

support_dirty_read =

,

rec_len = 0);

Open(

& filename,

support_dirty_read =

,

rec_len = 0);

Reopen(EOpenMode open_mode,

support_dirty_read =

,

rec_len = 0);

SafeTruncate();

Rename(

& fname,

& old_name,

& new_name);

Compact(ECompact compact_type = eCompactNoFree,

target_fill_pct = 0);

(*FContinueCompact)(void);

CompactEx(FContinueCompact compact_callback,

compact_type = eCompactNoFree,

target_fill_pct = 0);

SetPageSize(

page_size);

GetPageSize();

SetCacheSize(

cache_size);

SetCachePriority(ECachePriority priority);

& FileName()

;

& Database()

;

SetHash(

*);

IsOpen()

;

IsAttached()

;

CountRecs(

bFast =

);

GetRecLen()

;

SetHashFillFactor(

h_ffactor);

SetHashNelem(

h_nelem);

SetBtreeMinKeysPerPage(

keys_per_page);

GetBtreeMinKeysPerPage();

support_dirty_read,

x_Create(

* filename,

*

);

x_CreateDB(

rec_len);

= 0)

;

x_DB_Fetch(

*

,

x_DBC_Fetch(

*

,

x_DB_CPut(

*

,

x_FetchBufferDecompress(

*

,

* usr_data);

x_SetByteSwapped(

bswp);

Open(

& filename,

support_dirty_read =

,

rec_len = 0);

Open(

& filename,

support_dirty_read =

,

rec_len = 0);

Reopen(

open_mode,

support_dirty_read =

);

Insert(EAfterWrite write_flag = eDiscardData);

Append(EAfterWrite write_flag = eDiscardData);

Delete(EIgnoreError on_error=eThrowOnError);

UpdateInsert(EAfterWrite write_flag = eDiscardData);

BindKey (

* field_name,

buf_size = 0);

BindData(

* field_name,

DuplicateStructure(

& dbf);

SetFieldCompareLimit(

n_fields);

* CloneDBT_Key();

DestroyDBT_Clone(

* dbt);

SetLegacyStringsCheck(

);

SetFieldOwnership(

own_fields);

Verify(

* filename,

*

, FILE* backup);

SetCmp(

*);

EReallocMode allow_realloc);

bdb_flag,

EAfterWrite write_flag);

*

,

bdb_flag,

EAfterWrite write_flag);

CheckNullDataConstraint()

;

DisableDataPacking();

x_SetByteSwapped(

bswp);

x_CheckConstructBuffers();

x_ConstructKeyBuf();

x_ConstructDataBuf();

SetCmp(

* db);

? (-fidx) : (fidx);

& filename,

open_mode,

support_dirty_read,

(filename,

, open_mode, support_dirty_read, rec_len);

& filename,

open_mode,

support_dirty_read,

rec_len)

(filename,

, open_mode, support_dirty_read, rec_len);

->SetFieldCompareLimit(n_fields);

BDB Data Field Buffer manager class.

BDB environment object a collection including support for some or all of caching, locking,...

Base class for constructing BDB fields.

Berkeley DB file cursor class.

Berkeley DB file class optimized to work with tables having int as the primary key.

Multirow buffer for reading many rows in one call.

Raw file class wraps up basic Berkeley DB operations.

Reallocable memory buffer (no memory copy overhead) Mimics vector<>, without the overhead of explicit...

Interface for transactional objects.

std::ofstream out("events_result.xml")

main entry point for tests

ENullable

Whether a value is nullable.

@ eNullable

Value can be null.

@ eTakeOwnership

An object can take ownership of another.

string m_Database

db name in file (optional)

EDuplicateKeys GetDupKeysMode() const

Return the key duplicate mode value.

CBDB_MultiRowBuffer(const CBDB_MultiRowBuffer &)

size_t GetLastDataLen() const

Get BLOB length from last cursor read.

CBDB_Transaction * m_Trans

CBDB_MultiRowBuffer & operator=(const CBDB_MultiRowBuffer &)

size_t m_BufSize

buffer size

void * m_LastData

Last data pointer returned by DB_MULTIPLE_KEY_NEXT.

AutoPtr< ICompression > m_Compressor

Record compressor.

bool IsOpen() const

Return TRUE if the file is open.

virtual void SetCmp(DB *)=0

Set comparison function.

ECompact

BerkeleyDB compaction methods and flags.

DBT * m_Data_DBT

Temp DBT for multiple fetch.

void DisableHashOverride()

Disable hash method override (Berkeley DB will use it's own default hashing method)

EOpenMode

BDB file open mode.

void * m_Buf

Multiple row buffer.

bool IsByteSwapped() const

Return TRUE if the if the underlying database files were created on an architecture of the different ...

void Open(const string &filename, EOpenMode open_mode, bool support_dirty_read=false, unsigned rec_len=0)

Open file with specified access mode.

void DisableCmpOverride()

Disable BTREE comparison override.

const string & Database() const

CBDB_Transaction * GetBDBTransaction()

Get current transaction.

void DisableDataBufProcessing()

Function disables processing of m_DBT_data.

CBDB_File::TUnifiedFieldIndex BDB_GetUFieldIdx(int fidx, bool key)

Make field index in CBDB_File format.

bool IsOwnFields() const

Return fields ownership flag.

CBDB_RawFile(const CBDB_RawFile &)

forbidden

bool m_CmpOverride

TRUE - NCBI BDB sets its own cmp.

unique_ptr< CBDB_BufferManager > m_DataBuf

bool m_RevSplitOff

TRUE if reverse splitting is off.

EDBType

Berkeley DB database type.

EDuplicateKeys m_DuplicateKeys

string m_FileName

filename

void SetFieldCompareLimit(unsigned int n_fields)

Sets maximum number of key fields participating in comparison Should be less than total number of key...

CBDB_Env * GetEnv()

Get pointer on file environment Return NULL if no environment has been set.

const string & GetFileName() const

Return file name.

void * m_LastKey

Last key pointer returned by DB_MULTIPLE_KEY_NEXT.

int TUnifiedFieldIndex

CBDB_File keeps data in two buffers (key buffer and data buffer).

CBDB_BufferManager * GetKeyBuffer()

Get Buffer manager for key section of the file.

EDuplicateKeys

Control key duplicates in Btree.

void DisableNull()

Disable NULL/not NULL in data fields (Performance tweak, call before BindData)

EOpenMode GetOpenMode() const

Return the file open mode.

CSimpleBuffer TBuffer

typedef for raw buffer operations

static int x_CompareShim(DB *db, const DBT *dbt1, const DBT *dbt2, size_t *locp)

bool m_ByteSwapped

TRUE if file created on a diff.arch.

EReallocMode

BLOB read mode, controld data buffer reallocation when there is not enough space in buffer.

const CBDB_BufferManager * GetKeyBuffer() const

Get Buffer manager for key section of the file.

void EnablePrefixCompression()

Turn ON prefix compression.

ECachePriority

Set the priority for this database's pages in the buffer cache This is generally a temporary adviseme...

void Open(const string &filename, EOpenMode open_mode, bool support_dirty_read=false, unsigned rec_len=0)

Open file with specified access mode.

const void * GetLastDataPtr() const

Get data buffer pointer from last cursor read.

static const int kOpenFileMask

const string & FileName() const

EBDB_ErrCode

BDB Return codes.

const CBDB_BufferManager * GetDataBuffer() const

Get Buffer manager for data section of the file.

void * m_BufPtr

current buffer position

CBDB_BufferManager * GetDataBuffer()

Get Buffer manager for data section of the file.

void CheckNullDataConstraint() const

Check if all NOT NULL fields are assigned.

bool m_PrefixCompress

TRUE if prefix compression ON.

unique_ptr< CBDB_BufferManager > m_KeyBuf

bool DuplicatesAllowed() const

Return TRUE if file can contain duplicate keys.

unsigned GetRecLen() const

Get record length Works for fixed length record DBs only (Queue)

CBDB_File(const CBDB_File &)

forbidden

bool m_DB_Attached

TRUE if m_DB doesn't belong here.

EBDB_ErrCode Fetch()

Fetches the record corresponding to the current key value.

@ eKeepData

Keep the inserted data for a while.

@ eCreate

implies 'eReadWrite' too

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

IO_PREFIX::ostream CNcbiOstream

Portable alias for ostream.

CTime Truncate(const CTime &t)

virtual void SetTransaction(ITransaction *trans)=0

Establish transaction association.

virtual ITransaction * GetTransaction()=0

Get current transaction.

virtual void RemoveTransaction(ITransaction *trans)=0

Remove transaction association (must be established by SetTransaction.

enum ENcbiOwnership EOwnership

Ownership relations between objects.

use only n Cassandra database for the lookups</td > n</tr > n< tr > n< td > yes</td > n< td > do not use tables BIOSEQ_INFO and BLOB_PROP in the Cassandra database

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

const struct ncbi::grid::netcache::search::fields::KEY key

const GenericPointer< typename T::ValueType > T2 value

static void x_Close(SHttpConnector *uuu)

static SERV_ITER x_Open(const char *service, int ismask, TSERV_Type types, unsigned int preferred_host, unsigned short preferred_port, double preference, const SConnNetInfo *net_info, SSERV_InfoCPtr skip[], size_t n_skip, int external, const char *arg, const char *val, SSERV_Info **info, HOST_INFO *host_info)

NCBI C++ stream class wrappers for triggering between "new" and "old" C++ stream libraries.

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