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Query query = new Query (); if (id! = Null) {query. addCriteria (Criteria. where ("_ id "). gt (id);} query. with (new Sort (Sort. direction. ASC, "_ id "));
Comparator <DBObject> comparator = new Comparator <DBObject> () {@ Overridepublic int compare (DBObject o1, DBObject o2) {return (ObjectId) o1.get ("_ id ")). compareTo (ObjectId) o2.get ("_ id") ;}}; PriorityQueue <DBObject> queue = new PriorityQueue <DBObject> (200, comparator );Ó óço ?þ ¢ ¶ à cií» § ¶ Ë ¸ ²? please refer to the following statements for £\%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ¨ ä ä¸ ô Ò» à ë É é£ £. £ â  n Ç çó À Ô ²» áö öö öâ Ò µ µä çé omö£.
Protected WriteResult insert (List <DBObject> list, boolean shouldApply, com. mongodb. writeConcern concern, DBEncoder encoder) {if (encoder = null) encoder = DefaultDBEncoder. FACTORY. create (); if (willTrace () {for (DBObject o: list) {trace ("save:" + _ fullNameSpace + "" + JSON. serialize (o) ;}}if (shouldApply) {for (DBObject o: list) {apply (o); _ checkObject (o, false, false ); object id = o. get ("_ id"); if (id instanceof ObjectId) {(ObjectId) id ). notNew () ;}} WriteResult last = null; int cur = 0; int maxsize = _ mongo. getMaxBsonObjectSize (); while (cur <list. size () {OutMessage om = OutMessage. insert (this, encoder, concern); for (; cur <list. size (); cur ++) {DBObject o = list. get (cur); om. putObject (o); // limit for batch insert is 4 x maxbson on server, use 2 x to be safe if (om. size ()> 2 * maxsize) {cur ++; break ;}} last = _ connector. say (_ db, om, concern);} return last ;}×{*****Óobjectid µä² **********************************************************
/*** Cballs {@ link DBCollection # apply (com. mongodb. DBObject, boolean )} with ensureID = true * @ param o <code> DBObject </code> to which to add fields * @ return the modified parameter object */public Object apply (DBObject o) {return apply (o, true);}/*** CILS {@ link DBCollection # doapply (com. mongodb. DBObject )}, optionally adding an automatic _ id field * @ param jo object to add fields to * @ param ensureID whether to add an <code> _ id </code> field * @ return the modified object <code> o </code> */public Object apply (DBObject jo, boolean ensureID) {Object id = jo. get ("_ id"); if (ensureID & id = null) {id = ObjectId. get (); jo. put ("_ id", id) ;}doapply (jo); return id ;}*********************************************************************** Ľ · 」
Public WriteResult save (DBObject jo, WriteConcern concern) {if (checkReadOnly (true) return null; _ checkObject (jo, false, false); Object id = jo. get ("_ id"); if (id = null | (id instanceof ObjectId & (ObjectId) id ). isNew () {if (id! = Null & id instanceof ObjectId) (ObjectId) id ). notNew (); if (concern = null) return insert (jo); else return insert (jo, concern);} DBObject q = new BasicDBObject (); q. put ("_ id", id); if (concern = null) return update (q, jo, true, false); else return update (q, jo, true, false, concern );}
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DBObject update = new BasicDBObject ("$ inc", new BasicDBObject ("counter", 1); DBObject query = new BasicDBObject ("_ id", key ); DBObject result = getmediatemplate (). getCollection (collectionName ). findAndModify (query, update); if (result = null) {DBObject doc = new BasicDBObject (); doc. put ("counter", 1L); doc. put ("_ id", key); // insert (collectionName, doc); getctiontemplate (). save (doc, collectionName); return 1L;} return (Long) result. get ("counter ");
