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This commit is contained in:
Dwight 2008-07-27 18:44:10 -04:00
parent e011494cbc
commit 9249a94423
1 changed files with 12 additions and 11 deletions
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23
db/dbclient.h
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@ -48,8 +48,8 @@ public:
DBClientCursor(MessagingPort& _p, auto_ptr<Message> _m) :
p(_p), m(_m) { dataReceived(); }
bool more();
JSObj next();
bool more(); // if true, safe to call next()
JSObj next(); // returns next object in the result cursor
};
class DBClientConnection : boost::noncopyable {
@ -60,17 +60,18 @@ public:
bool connect(const char *serverHostname, string& errmsg);
/* send a query to the database.
ns: namespace to query, format is <dbname>.<collectname>[.<collectname>]*
query: query to perform on the collection. this is a JSObj (binary JSON)
ns: namespace to query, format is <dbname>.<collectname>[.<collectname>]*
query: query to perform on the collection. this is a JSObj (binary JSON)
You may format as
{ query: { ... }, order: { ... } }
to specify a sort order.
nToReturn: n to return. 0 = unlimited
nToSkip: start with the nth item
fieldsToReturn: optional template of which fields to select. if unspecified, returns all fields
nToSkip: start with the nth item
fieldsToReturn:
optional template of which fields to select. if unspecified, returns all fields
returns: cursor.
returns 0 if error
returns: cursor.
returns 0 if error
*/
auto_ptr<DBClientCursor> query(const char *ns, JSObj query, int nToReturn = 0, int nToSkip = 0, JSObj *fieldsToReturn = 0);
};