Package com.mongodb

Examples of com.mongodb.QueryBuilder

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            }

            // perform a conditional update with limited result
            // if we have a matching modCount
            if (modCount != null) {
                QueryBuilder query = createQueryForUpdate(updateOp, checkConditions);
                query.and(Document.MOD_COUNT).is(modCount);
                DBObject fields = new BasicDBObject();
                // return _id only
                fields.put("_id", 1);

                DBObject oldNode = dbCollection.findAndModify(query.get(), fields,
                        null /*sort*/, false /*remove*/, update, false /*returnNew*/,
                        false /*upsert*/);
                if (oldNode != null) {
                    // success, update cached document
                    applyToCache(collection, cachedDoc, updateOp);
                    // return previously cached document
                    return cachedDoc;
                }
            }

            // conditional update failed or not possible
            // perform operation and get complete document
            QueryBuilder query = createQueryForUpdate(updateOp, checkConditions);
            DBObject oldNode = dbCollection.findAndModify(query.get(), null,
                    null /*sort*/, false /*remove*/, update, false /*returnNew*/,
                    upsert);
            if (checkConditions && oldNode == null) {
                return null;
            }
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    @Override
    public <T extends Document> void update(Collection<T> collection,
                                            List<String> keys,
                                            UpdateOp updateOp) {
        DBCollection dbCollection = getDBCollection(collection);
        QueryBuilder query = QueryBuilder.start(Document.ID).in(keys);
        DBObject update = createUpdate(updateOp);
        long start = start();
        try {
            Map<String, NodeDocument> cachedDocs = Collections.emptyMap();
            if (collection == Collection.NODES) {
                cachedDocs = Maps.newHashMap();
                for (String key : keys) {
                    cachedDocs.put(key, nodesCache.getIfPresent(key));
                }
            }
            try {
                WriteResult writeResult = dbCollection.update(query.get(), update, false, true, WriteConcern.SAFE);
                if (writeResult.getError() != null) {
                    throw new MicroKernelException("Update failed: " + writeResult.getError());
                }
                // update cache
                for (Entry<String, NodeDocument> entry : cachedDocs.entrySet()) {
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    }

    @Nonnull
    private static QueryBuilder createQueryForUpdate(UpdateOp updateOp,
                                              boolean checkConditions) {
        QueryBuilder query = getByKeyQuery(updateOp.id);

        for (Entry<Key, Operation> entry : updateOp.getChanges().entrySet()) {
            Key k = entry.getKey();
            Operation op = entry.getValue();
            switch (op.type) {
                case CONTAINS_MAP_ENTRY: {
                    if (checkConditions) {
                        query.and(k.toString()).exists(op.value);
                    }
                    break;
                }
            }
        }
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    String dbFieldName = mapping.getDocumentField(fieldFilter.getFieldName());

    FilterOp filterOp = fieldFilter.getFilterOp();
    List<Object> operands = fieldFilter.getOperands();

    QueryBuilder builder = QueryBuilder.start(dbFieldName);
    builder = appendToBuilder(builder, filterOp, operands);
    if (!fieldFilter.isFilterIfMissing()) {
      // If false, the find query will pass if the column is not found.
      DBObject notExist = QueryBuilder.start(dbFieldName).exists(false).get();
      builder = QueryBuilder.start().or(notExist, builder.get());
    }
    return builder.get();
  }
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        + "." + store.encodeFieldKey(mapFilter.getMapKey().toString());

    FilterOp filterOp = mapFilter.getFilterOp();
    List<Object> operands = mapFilter.getOperands();

    QueryBuilder builder = QueryBuilder.start(dbFieldName);
    builder = appendToBuilder(builder, filterOp, operands);
    if (!mapFilter.isFilterIfMissing()) {
      // If false, the find query will pass if the column is not found.
      DBObject notExist = QueryBuilder.start(dbFieldName).exists(false).get();
      builder = QueryBuilder.start().or(notExist, builder.get());
    }
    return builder.get();
  }
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                                              .append("y", rand.nextInt(90) + 10)
                            )
            );
        }

        QueryBuilder builder = QueryBuilder.start("start.x").greaterThan(50);

        DBCursor cursor = lines.find(builder.get(),
                new BasicDBObject("start.y", true).append("_id", false));

        try {
            while (cursor.hasNext()) {
                DBObject cur = cursor.next();
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            collection.insert(
                    new BasicDBObject("x", new Random().nextInt(2))
                            .append("y", new Random().nextInt(100)));
        }

        QueryBuilder builder = QueryBuilder.start("x").is(0)
                .and("y").greaterThan(10).lessThan(70);
        DBObject query = new BasicDBObject("x", 0)
                .append("y", new BasicDBObject("$gt", 10).append("$lt", 90));

        System.out.println("\nCount:");
        long count = collection.count(builder.get());
        System.out.println(count);

        System.out.println("\nFind all: ");
        DBCursor cursor = collection.find(builder.get());
        try {
            while (cursor.hasNext()) {
                DBObject cur = cursor.next();
                System.out.println(cur);
            }
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                                              String indexedProperty,
                                              long startValue,
                                              int limit) {
        log("query", fromKey, toKey, limit);
        DBCollection dbCollection = getDBCollection(collection);
        QueryBuilder queryBuilder = QueryBuilder.start(Document.ID);
        queryBuilder.greaterThan(fromKey);
        queryBuilder.lessThan(toKey);
        if (indexedProperty != null) {
            queryBuilder.and(indexedProperty);
            queryBuilder.greaterThanEquals(startValue);
        }
        DBObject query = queryBuilder.get();
        long start = start();
        try {
            DBCursor cursor = dbCollection.find(query).sort(BY_ID_ASC);
            List<T> list = new ArrayList<T>();
            for (int i = 0; i < limit && cursor.hasNext(); i++) {
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            }

            // perform a conditional update with limited result
            // if we have a matching modCount
            if (modCount != null) {
                QueryBuilder query = createQueryForUpdate(updateOp, checkConditions);
                query.and(Document.MOD_COUNT).is(modCount);
                DBObject fields = new BasicDBObject();
                // return _id only
                fields.put("_id", 1);

                DBObject oldNode = dbCollection.findAndModify(query.get(), fields,
                        null /*sort*/, false /*remove*/, update, false /*returnNew*/,
                        false /*upsert*/);
                if (oldNode != null) {
                    // success, update cached document
                    applyToCache(collection, cachedDoc, updateOp);
                    // return previously cached document
                    return cachedDoc;
                }
            }

            // conditional update failed or not possible
            // perform operation and get complete document
            QueryBuilder query = createQueryForUpdate(updateOp, checkConditions);
            DBObject oldNode = dbCollection.findAndModify(query.get(), null,
                    null /*sort*/, false /*remove*/, update, false /*returnNew*/,
                    upsert);
            if (checkConditions && oldNode == null) {
                return null;
            }
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    @Override
    public <T extends Document> void update(Collection<T> collection,
                                            List<String> keys,
                                            UpdateOp updateOp) {
        DBCollection dbCollection = getDBCollection(collection);
        QueryBuilder query = QueryBuilder.start(Document.ID).in(keys);
        DBObject update = createUpdate(updateOp);
        long start = start();
        try {
            Map<String, NodeDocument> cachedDocs = Collections.emptyMap();
            if (collection == Collection.NODES) {
                cachedDocs = Maps.newHashMap();
                for (String key : keys) {
                    cachedDocs.put(key, nodesCache.getIfPresent(new StringValue(key)));
                }
            }
            try {
                WriteResult writeResult = dbCollection.update(query.get(), update, false, true, WriteConcern.SAFE);
                if (writeResult.getError() != null) {
                    throw new MicroKernelException("Update failed: " + writeResult.getError());
                }
                // update cache
                for (Entry<String, NodeDocument> entry : cachedDocs.entrySet()) {
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