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

<

Key>

<

BV,

TL=CFastMutex>

3.0 * 1024.0 * 1024.0 * 1024.0,

<

Key,

<

Key>

<

Key>

<

Key>

<

Key>

m_MaxUid =

(m_MaxUid,

);

UpdateInsert();

<

Key>

<

Key>

<

Key>

<

Key>

<

Key>

<

Key,

Dictionary,

Store>

, m_Store(new Store(demux_path))

<

Key,

Dictionary,

Store>

: m_Dict(&generator, own),

<

Key,

Dictionary,

Store>

<

Key,

Dictionary,

Store>

m_Store->

();

<

Key,

Dictionary,

Store>

<

Key,

Dictionary,

Store>

m_Dict->SetEnv(

);

m_Store->SetEnv(

);

<

Key,

Dictionary,

Store>

<

Key,

Dictionary,

Store>

( !m_Dict->IsOpen() && !m_Filename.empty() ) {

m_Dict->Open(m_Filename +

, m_OpenMode);

<

Key,

Dictionary,

Store>

( !m_Store->IsOpen() && !m_Filename.empty() ) {

m_Store->Open(m_Filename, m_OpenMode);

<

Key,

Dictionary,

Store>

key_id = x_GetOpenDict().GetKey(

);

ReadById(key_id,

);

<

Key,

Dictionary,

Store>

x_GetOpenStore().ReadRealloc(key_id,

);

<

Key,

Dictionary,

Store>

<

Key,

Dictionary,

Store>

key_id = x_GetOpenDict().PutKey(

);

UpdateInsert(key_id,

,

);

<

Key,

Dictionary,

Store>

UpdateInsert(key_id,

,

);

<

Key,

Dictionary,

Store>

UpdateInsert(key_id, &

[0],

.size());

<

Key,

Dictionary,

Store>

x_GetOpenStore().UpdateInsert(uid,

,

);

<

Key,

Dictionary,

Store>

x_GetOpenStore().Delete(

, on_error, trans);

Wrapper around Berkeley DB environment structure.

BDB library split BLOB store.

Split demux which can save and load state into a file Stateful (persistent) class.

CBDB_BlobDictStore(const CBDB_BlobDictStore< Key, Dictionary, Store > &)

forbidden

const string & GetFileName() const

EBDB_ErrCode Write(const Key &key, const CBDB_RawFile::TBuffer &data)

EBDB_ErrCode Delete(unsigned id, CBDB_RawFile::EIgnoreError on_error=CBDB_RawFile::eThrowOnError, CBDB_Transaction *trans=0)

Delete the underlying blob.

TDictionary & x_GetOpenDict()

EBDB_ErrCode WriteById(TKeyId key_id, const void *data, size_t size)

virtual ~CBDB_BlobDictStore()

EBDB_ErrCode Read(const Key &key, CBDB_RawFile::TBuffer &data)

CBDB_BlobDictStore(const string &demux_path=kEmptyStr)

EBDB_ErrCode Write(const Key &key, const void *data, size_t size)

CBDB_BlobDictStore(Dictionary &dict, Store &store, EOwnership own=eNoOwnership)

CBDB_RawFile::EOpenMode m_OpenMode

EBDB_ErrCode ReadById(TKeyId key, CBDB_RawFile::TBuffer &data)

EBDB_ErrCode WriteById(TKeyId key_id, const CBDB_RawFile::TBuffer &data)

AutoPtr< TStore > m_Store

Dictionary & GetDictionary()

void SetEnv(CBDB_Env &env)

CBDB_BlobDictStore< Key, Dictionary, Store > & operator=(const CBDB_BlobDictStore< Key, Dictionary, Store > &)

TStore & x_GetOpenStore()

AutoPtr< TDictionary > m_Dict

EBDB_ErrCode UpdateInsert(Uint4 uid, const void *data, size_t size)

void Open(const string &fname, CBDB_RawFile::EOpenMode mode)

void Open(const string &, CBDB_RawFile::EOpenMode)

void SetEnv(CBDB_Env &env)

no-ops for compatibility

Uint4 GetKey(const Int4 &key)

Uint4 PutKey(const Int4 &key)

void SetEnv(CBDB_Env &env)

no-ops for compatibility

Uint4 GetKey(const Uint4 &key)

Uint4 PutKey(const Uint4 &key)

void Open(const string &, CBDB_RawFile::EOpenMode)

Templatized candidate for dictionaries This template defines the basic interface that must be support...

TKeyId GetKey(const TKey &key)

SBDB_TypeTraits< Uint4 >::TFieldType m_Uid

data

EBDB_ErrCode Read(TKeyId *val)

read the current key's value

SBDB_TypeTraits< Key >::TFieldType m_Key

key

EBDB_ErrCode Read(const TKey &key, TKeyId *val)

read a particular key's value

Key GetCurrentKey() const

retrieve the current key

EBDB_ErrCode Write(const TKey &key, TKeyId val)

write a key/value pair to the store

TKeyId GetCurrentUid() const

TKeyId PutKey(const TKey &key)

BLOB storage based on single unsigned integer key Supports BLOB volumes and different base page size ...

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

CBDB_BlobSplitStore< BV, CBDB_BlobDeMuxPersistent, TL > TParent

CBDB_PersistentSplitStore(const string &demux_path)

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

@ eNoOwnership

No ownership is assumed.

EOpenMode

BDB file open mode.

void BindKey(const char *field_name, CBDB_Field *key_field, size_t buf_size=0)

void BindData(const char *field_name, CBDB_Field *data_field, size_t buf_size=0, ENullable is_null=eNullable)

EBDB_ErrCode

BDB Return codes.

DB_ENV * GetEnv()

Return underlying DB_ENV structure pointer for low level access.

void Read(CObjectIStream &in, TObjectPtr object, const CTypeRef &type)

void Write(CObjectOStream &out, TConstObjectPtr object, const CTypeRef &type)

int32_t Int4

4-byte (32-bit) signed integer

uint32_t Uint4

4-byte (32-bit) unsigned integer

#define END_NCBI_SCOPE

End previously defined NCBI scope.

#define BEGIN_NCBI_SCOPE

Define ncbi namespace.

enum ENcbiOwnership EOwnership

Ownership relations between objects.

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

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

static CSafeStatic< map< string, string > > Dictionary

Type trait classes for finding the correct BDB field type automagically.

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