Examples of com.mongodb.DBCursor.limit()

com.mongodb.DBCursor.limit()
Limits the number of elements returned. Note: parameter n should be positive, although a negative value is supported for legacy reason. Passing a negative value will call {@link DBCursor#batchSize(int)} which is the preferred method. @param n the number of elements to return @return a cursor to iterate the results @dochub limit

    if ( queryParameters.getRowSelection().getFirstRow() != null ) {
      cursor.skip( queryParameters.getRowSelection().getFirstRow() );
    }


    if ( queryParameters.getRowSelection().getMaxRows() != null ) {
      cursor.limit( queryParameters.getRowSelection().getMaxRows() );
    }


    return new MongoDBResultsCursor( cursor, entityKeyMetadata );
  }

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            if (numToSkip != null) {
                ret.skip(numToSkip.intValue());
            }


            if (limit != null) {
                ret.limit(limit.intValue());
            }


            Message resultMessage = prepareResponseMessage(exchange, MongoDbOperation.findAll);
            resultMessage.setBody(ret.toArray());
            resultMessage.setHeader(MongoDbConstants.RESULT_TOTAL_SIZE, ret.count());

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                try {
                    if (mongoSpec.getSkip() > 0) {
                        cursor.skip(mongoSpec.getSkip());
                    }
                    if (mongoSpec.getLimit() != 0) {
                        cursor.limit(mongoSpec.getLimit());
                    }
                    if (mongoSpec.getBatchSize() != 0) {
                        cursor.batchSize(mongoSpec.getBatchSize());
                    }
                    if (!cursor.hasNext()) {

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    if ( queryParameters.getRowSelection().getFirstRow() != null ) {
      cursor.skip( queryParameters.getRowSelection().getFirstRow() );
    }


    if ( queryParameters.getRowSelection().getMaxRows() != null ) {
      cursor.limit( queryParameters.getRowSelection().getMaxRows() );
    }


    return new MongoDBResultsCursor( cursor, entityKeyMetadata );
  }

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        logger.info("Executing MongoDB 'find' query: {}", query);
        DBCursor cursor = collection.find(query);


        if (maxRows > 0) {
            cursor = cursor.limit(maxRows);
        }
        if (firstRow > 1) {
            final int skip = firstRow - 1;
            cursor = cursor.skip(skip);
        }

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            if (skip > 0 || limit > 0) {
                if (skip > 0) {
                    cursor = cursor.skip(skip);
                }
                if (limit > 0) {
                    cursor = cursor.limit(limit);
                }
            }


            // sort
            if (null != cursor && null != sort) {

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    }
    JsonObject sort = message.body.getObject("sort");
    DBCollection coll = db.getCollection(collection);
    DBCursor cursor = coll.find(jsonToDBObject(matcher));
    if (limit != -1) {
      cursor.limit(limit);
    }
    if (sort != null) {
      cursor.sort(jsonToDBObject(sort));
    }
    sendBatch(message, cursor, batchSize);

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            if (numToSkip != null) {
                ret.skip(numToSkip.intValue());
            }
    
            if (limit != null) {
                ret.limit(limit.intValue());
            }
            
            Message resultMessage = prepareResponseMessage(exchange, MongoDbOperation.findAll);
            resultMessage.setBody(ret.toArray());
            resultMessage.setHeader(MongoDbConstants.RESULT_TOTAL_SIZE, ret.count());

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            if (numToSkip != null) {
                ret.skip(numToSkip.intValue());
            }
    
            if (limit != null) {
                ret.limit(limit.intValue());
            }
            
            Message out = exchange.getOut();
            out.setBody(ret.toArray());
            out.setHeader(MongoDbConstants.RESULT_TOTAL_SIZE, ret.count());

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            if (numToSkip != null) {
                ret.skip(numToSkip.intValue());
            }


            if (limit != null) {
                ret.limit(limit.intValue());
            }


            Message resultMessage = prepareResponseMessage(exchange, MongoDbOperation.findAll);
            resultMessage.setBody(ret.toArray());
            resultMessage.setHeader(MongoDbConstants.RESULT_TOTAL_SIZE, ret.count());

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