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Tech blog of j-labs' engineers. Experiences, knowledge, solutions.

How to quickly write an application to load thousands of records into DB using Spring Batch?

Let’s assume we want to measure air pollution in our city. We’ve got around 100 detectors located in different parts of the town. Measurement results are collected every 15 minutes. It gives us 9600 records a day...

Paweł Weselak

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20 Dec 2017

  Mobile Databases 

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How to quickly write an application to load thousands of records into DB using Spring Batch?

20 Dec 2017 | Paweł Weselak

  Mobile Databases 

Let’s assume we want to measure air pollution in our city. We’ve got around 100 detectors located in different parts of the town. Measurement results are collected every 15 minutes. It gives us 9600 records a day...

Read more
4

MongoDB document oriented database | introduction

24 Nov 2017 | Mateusz Starzyk

  Databases 

We live in the world where we are bombarded with huge amount of information, news and advertising. Computer network becomes the central place of business. For this reason databases become fatter and fatter.

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5

Creating game for android using JavaScript #5 | Converting JavaScript applications to Android application

24 Aug 2017 | Józef Kała

  Mobile 

Now, when we have fully working HTML 5 game, we want to convert it to mobile version.

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6

Mapping JPA in Your Database With the Time API

11 Aug 2017 | Tomasz Janczewski

  Mobile 

Many times, we encounter the need to store date and time in our database. Throughout application development, we need to make CRUD operations on that stored data.

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7

Creating game for android using JavaScript #4 | Sounds, Web Audio Api

03 Aug 2017 | Józef Kała

  Mobile 

It would be hard to imagine a game without a sound. Fortunately there is powerful Web Audio Api that will help us to include sound to our game.

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Creating game for Android using JavaScript #3 | Events and gameplay

28 Jul 2017 | Józef Kała

  Mobile 

It’s time to make our game playable. What we need to do, is to give our hero little boost after clicking or touching the screen

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9

Creating game for android using JavaScript #2 | Drawing game objects

29 Jun 2017 | Józef Kała

  Mobile 

Few years ago, when Android had taken lead of the mobile market, I had decided to create game and become a millionaire as a “thousands” of mobile game developers.

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10

Selenium Webdriver - browser preferences for downloading files

22 Jun 2017 | Paweł Motyka

In this article you will find and introduction to browser’s profiles/preferences and quick solution for managing downloading files from script level.

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11

Browser IndexedDB API

08 Jun 2017 | Paweł Kasperowicz

  Front-end 

IndexedDB is persistent storage key-value object-oriented database. It supports transactions. It has asynchronous API and can be used in Web Workers. 

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