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C++ NamespaceDetails::indexKeys方法代码示例

本文整理汇总了C++中NamespaceDetails::indexKeys方法的典型用法代码示例。如果您正苦于以下问题:C++ NamespaceDetails::indexKeys方法的具体用法?C++ NamespaceDetails::indexKeys怎么用?C++ NamespaceDetails::indexKeys使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在NamespaceDetails的用法示例。


在下文中一共展示了NamespaceDetails::indexKeys方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: _updateObjects

    UpdateResult _updateObjects( const char* ns,
                                 const BSONObj& updateobj,
                                 const BSONObj& patternOrig,
                                 bool upsert,
                                 bool multi,
                                 bool logop ,
                                 OpDebug& debug,
                                 bool fromMigrate,
                                 const QueryPlanSelectionPolicy& planPolicy ) {

        TOKULOG(2) << "update: " << ns
                   << " update: " << updateobj
                   << " query: " << patternOrig
                   << " upsert: " << upsert << " multi: " << multi << endl;

        debug.updateobj = updateobj;

        NamespaceDetails *d = getAndMaybeCreateNS(ns, logop);

        auto_ptr<ModSet> mods;
        const bool isOperatorUpdate = updateobj.firstElementFieldName()[0] == '$';
        bool modsAreIndexed = false;

        if ( isOperatorUpdate ) {
            if ( d->indexBuildInProgress() ) {
                set<string> bgKeys;
                d->inProgIdx().keyPattern().getFieldNames(bgKeys);
                mods.reset( new ModSet(updateobj, d->indexKeys(), &bgKeys) );
            }
            else {
                mods.reset( new ModSet(updateobj, d->indexKeys()) );
            }
            modsAreIndexed = mods->isIndexed();
        }


        int idIdxNo = -1;
        if ( planPolicy.permitOptimalIdPlan() && !multi && !modsAreIndexed &&
             (idIdxNo = d->findIdIndex()) >= 0 && mayUpdateById(d, patternOrig) ) {
            debug.idhack = true;
            IndexDetails &idx = d->idx(idIdxNo);
            BSONObj pk = idx.getKeyFromQuery(patternOrig);
            TOKULOG(3) << "_updateObjects using simple _id query, pattern " << patternOrig << ", pk " << pk << endl;
            UpdateResult result = _updateById( pk,
                                               isOperatorUpdate,
                                               mods.get(),
                                               d,
                                               ns,
                                               updateobj,
                                               patternOrig,
                                               logop,
                                               debug,
                                               fromMigrate);
            if ( result.existing || ! upsert ) {
                return result;
            }
            else if ( upsert && ! isOperatorUpdate && ! logop) {
                debug.upsert = true;
                BSONObj objModified = updateobj;
                insertAndLog( ns, d, objModified, logop, fromMigrate );
                return UpdateResult( 0 , 0 , 1 , updateobj );
            }
        }

        int numModded = 0;
        debug.nscanned = 0;
        shared_ptr<Cursor> c = getOptimizedCursor( ns, patternOrig, BSONObj(), planPolicy );

        if( c->ok() ) {
            set<BSONObj> seenObjects;
            MatchDetails details;
            auto_ptr<ClientCursor> cc;
            do {

                debug.nscanned++;

                if ( mods.get() && mods->hasDynamicArray() ) {
                    // The Cursor must have a Matcher to record an elemMatchKey.  But currently
                    // a modifier on a dynamic array field may be applied even if there is no
                    // elemMatchKey, so a matcher cannot be required.
                    //verify( c->matcher() );
                    details.requestElemMatchKey();
                }

                if ( !c->currentMatches( &details ) ) {
                    c->advance();
                    continue;
                }

                BSONObj currPK = c->currPK();
                if ( c->getsetdup( currPK ) ) {
                    c->advance();
                    continue;
                }

                BSONObj currentObj = c->current();
                BSONObj pattern = patternOrig;

                if ( logop ) {
                    BSONObjBuilder idPattern;
//.........这里部分代码省略.........
开发者ID:lucciano,项目名称:mongo-1,代码行数:101,代码来源:update.cpp


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