The interface that any db connection should implement. More...

#include <dbclient.h>

Inheritance diagram for mongo::DBClientInterface:

Public Member Functions
virtual auto_ptr< DBClientCursor >	query (const string &ns, Query query, int nToReturn=0, int nToSkip=0, const BSONObj *fieldsToReturn=0, int queryOptions=0, int batchSize=0)=0
virtual void	insert (const string &ns, BSONObj obj, int flags=0)=0
virtual void	insert (const string &ns, const vector< BSONObj > &v, int flags=0)=0
virtual void	remove (const string &ns, Query query, bool justOne=0)=0
virtual void	update (const string &ns, Query query, BSONObj obj, bool upsert=0, bool multi=0)=0
virtual BSONObj	findOne (const string &ns, const Query &query, const BSONObj *fieldsToReturn=0, int queryOptions=0)
void	findN (vector< BSONObj > &out, const string &ns, Query query, int nToReturn, int nToSkip=0, const BSONObj *fieldsToReturn=0, int queryOptions=0)
	query N objects from the database into an array.
virtual string	getServerAddress () const =0
virtual auto_ptr< DBClientCursor >	getMore (const string &ns, long long cursorId, int nToReturn=0, int options=0)=0
	don't use this - called automatically by DBClientCursor for you

Detailed Description

The interface that any db connection should implement.

Member Function Documentation

void mongo::DBClientInterface::findN	(	vector< BSONObj > &	out,
		const string &	ns,
		Query	query,
		int	nToReturn,
		int	nToSkip = `0`,
		const BSONObj *	fieldsToReturn = `0`,
		int	queryOptions = `0`
	)

query N objects from the database into an array.

makes sense mostly when you want a small number of results. if a huge number, use query() and iterate the cursor.

BSONObj mongo::DBClientInterface::findOne	(	const string &	ns,
		const Query &	query,
		const BSONObj *	fieldsToReturn = `0`,
		int	queryOptions = `0`
	)		`[virtual]`

Returns:: a single object that matches the query. if none do, then the object is empty

Exceptions:

AssertionException

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