ccgl::db_mongoc 命名空间参考

Simple wrappers of the API of MongoDB C driver mongo-c-driver, see MongoDB C Driver for more information. 更多...

类
class	MongoClient
	A simple wrapper of the class of MongoDB Client mongoc_client_t. 更多...
class	MongoCollection
	A simple wrapper of the class of MongoDB Collection mongoc_collection_t. 更多...
class	MongoDatabase
	A simple wrapper of the class of MongoDB database mongoc_database_t. 更多...
class	MongoGridFs
	A simple wrapper of the class of MongoDB database mongoc_gridfs_t. 更多...

函数
void	AppendStringOptionsToBson (bson_t *bson_opts, const STRING_MAP &opts, const string &prefix=string())
	Append options to bson_t
template<typename T >
bool	GetNumericFromBsonIterator (bson_iter_t *iter, T &numericvalue)
	Get numeric value from the iterator (bson_iter_t) of bson_taccording to a given key 更多...
template<typename T >
void	GetVectorFromBsonIter (bson_iter_t *iter, vector< T > &out)
	parse the following nested vector from bson_t: [1, 2, 3]
template<typename T >
void	GetVectorVectorFromBsonIter (bson_iter_t *iter, vector< vector< T > > &out)
	parse the following nested vector from bson_t: [ [1, 2, 3], [4, 5, 6], [7, 8, 9] ]
template<typename T >
bool	GetNumericFromBson (bson_t *bmeta, const char *key, T &numericvalue)
	Get numeric value from bson_t according to a given key 更多...
string	GetStringFromBsonIterator (bson_iter_t *iter)
	Get String from the iterator (bson_iter_t) of bson_t 更多...
string	GetStringFromBson (bson_t *bmeta, const char *key)
	Get String from bson_t 更多...
bool	GetBoolFromBsonIterator (bson_iter_t *iter)
	Get Bool from the iterator (bson_iter_t) of bson_t 更多...
bool	GetBoolFromBson (bson_t *bmeta, const char *key)
	Get String from bson_t 更多...
time_t	GetDatetimeFromBsonIterator (bson_iter_t *iter)
	Get Datetime from the iterator (bson_iter_t) of bson_t 更多...
time_t	GetDatetimeFromBson (bson_t *bmeta, const char *key)
	Get Datetime from bson_t 更多...

详细描述

Simple wrappers of the API of MongoDB C driver mongo-c-driver, see MongoDB C Driver for more information.

函数说明

GetBoolFromBson()

bool ccgl::db_mongoc::GetBoolFromBson	(	bson_t *	bmeta,
		const char *	key
	)

Get String from bson_t

参数

[in]	bmeta	Instance of bson_t
[in]	key

返回

true if succeeded, otherwise false.

参见

GetBoolFromBsonIterator()

GetBoolFromBsonIterator()

bool ccgl::db_mongoc::GetBoolFromBsonIterator

(

bson_iter_t *

iter

)

Get Bool from the iterator (bson_iter_t) of bson_t

参数

[in]

iter

Iterator of an instance of bson_t

返回

true if succeed, otherwise false.

GetDatetimeFromBson()

time_t ccgl::db_mongoc::GetDatetimeFromBson	(	bson_t *	bmeta,
		const char *	key
	)

Get Datetime from bson_t

参数

[in]	bmeta	Instance of bson_t
[in]	key

返回

float value (time_t) if succeed, otherwise -1.

参见

GetDatetimeFromBsonIterator()

GetDatetimeFromBsonIterator()

time_t ccgl::db_mongoc::GetDatetimeFromBsonIterator

(

bson_iter_t *

iter

)

Get Datetime from the iterator (bson_iter_t) of bson_t

参数

[in]

iter

Iterator of an instance of bson_t

返回

float value (time_t) if succeed, otherwise -1.

GetNumericFromBson()

template<typename T >

bool ccgl::db_mongoc::GetNumericFromBson	(	bson_t *	bmeta,
		const char *	key,
		T &	numericvalue
	)

Get numeric value from bson_t according to a given key

参数

[in]	bmeta	Instance of bson_t
[in]	key
[in,out]	numericvalue	The extracted value which can be int, float, or double

返回

true if succeed, otherwise false.

参见

GetNumericFromBsonIterator()

GetNumericFromBsonIterator()

template<typename T >

bool ccgl::db_mongoc::GetNumericFromBsonIterator	(	bson_iter_t *	iter,
		T &	numericvalue
	)

Get numeric value from the iterator (bson_iter_t) of bson_taccording to a given key

参数

[in]	iter	Iterator of an instance of bson_t
[in,out]	numericvalue	The extracted value which can be int, float, or double

返回

true if succeed, otherwise false.

GetStringFromBson()

string ccgl::db_mongoc::GetStringFromBson	(	bson_t *	bmeta,
		const char *	key
	)

Get String from bson_t

参数

[in]	bmeta	Instance of bson_t
[in]	key

返回

String of value if succeed, otherwise empty string ("").

参见

GetStringFromBsonIterator()

GetStringFromBsonIterator()

string ccgl::db_mongoc::GetStringFromBsonIterator

(

bson_iter_t *

iter

)

Get String from the iterator (bson_iter_t) of bson_t

参数

[in]

iter

Iterator of an instance of bson_t

返回

String of value if succeed, otherwise empty string ("").