Difference Between First Level Cache and Second Level Cache in Hibernate

Himanshu shriv
Updated on 21-Jan-2020 07:12:08

11K+ Views

Hibernate support two type of cache one is first level cache and other is second level cache. First level cache is a session level cache and it is always associated with session level object. This type of cache is used for minimizing Db interaction by caching the state of the object. That is instead of updating after every modification done in the transaction, it updates the transaction only at the end of the transaction.Second level cache is session factory level cache and it is available across all sessions.While running the transactions, in between it loads the objects at the Session Factory level, ... Read More

How Motorola Made Modular Smartphone a Reality

Sharon Christine
Updated on 21-Jan-2020 07:04:38

204 Views

When you like something you keep it; when you are bored of something, you think of replacing it. But you wish if it were possible to add something new to a product you have had for a long time, and still like. For example, when you love a dress, you buy it but you can’t wear the same dress every day, so you think of adding new accessories to it and giving it newer looks. Can we do the same with smartphones?Let’s say, you have a smart phone you love, but can you use it forever? The answer is ‘No’. ... Read More

Hover Camera for Capturing Drone Selfies

karthikeya Boyini
Updated on 21-Jan-2020 06:52:58

168 Views

The word ‘Selfie’ has become as been one of the most hyped words in the last decade or so. Smartphone makers are leaning more and more towards enriching the selfie experience of their phones. After all, who needs another person to capture your favorite moments when you can do it on your own? In the last two years, the world has witnessed a huge variety of tools dedicated to enhance the selfie experience, such as a selfie stick, a dedicated flash, or a zooming lens; the list goes on.Would you believe me if I tell you all these accessories are ... Read More

How Xiaomi's Foldable Electric Bicycle Works

Sharon Christine
Updated on 21-Jan-2020 06:49:00

135 Views

We need technology for everything today , be it washing clothes, dishwasher for utensils, or getting medical reports. Our increasing dependency on technology round the clock has inspired the Chinese Technology Giant, Xiaomi to introduce a new product to the market.Yes we are talking about the new talk of the town, the electronic bicycle by Xiaomi, named “Qicycle”How Does it Work?The Qicycle weighs 14.5 kgs and 7kgs.Any other information is yet to be revealed by the Chinese company. But this is a new concept introduced by the company that lures people who love riding eco-friendly bikes, unlike this one the ... Read More

How WhatsApp End-to-End Encryption Keeps Your Data Safe

karthikeya Boyini
Updated on 21-Jan-2020 06:46:27

775 Views

WhatsApp has emerged as a popular smart app and is even more admired due to its secured chatting feature. With different versions, it offers users an additional security level each time, thus ensuring the safe messaging experience, but the updated version of WhatsApp post 31st march 2016 brought a revolutionary change by introducing a strong security feature for its users known as “end-to-end encryption”, designed on Open Whisper System. This has added another layer of safety to its application and has made more well-liked.What is End-to-end Encryption?End to end encryption means no one except you and the recipient can see ... Read More

How Multi-Material 3D Printer Works

Sharon Christine
Updated on 21-Jan-2020 06:40:00

186 Views

3D printing, also referred to as additive manufacturing is the method of making three-dimensional solid objects from a digital file. 3D printing is gaining more popularity nowadays because of its enormous potential in science and technology.What is Multi-material 3D Printing?In 3D printing, a three-dimensional object is formed from piling ultra-thin layers of material on top of one another so that the object is an exact clone or visual replica of the original thing- the same as in regular HD printing, but with the depth perception.How does 3D Printing Work?The engineer will first determine which object to create, by either searching ... Read More

How DAS Keyboard Works

karthikeya Boyini
Updated on 21-Jan-2020 06:36:49

225 Views

What do you visualize when somebody coins the term ‘input device’? A keyboard, a mouse, a joystick or may be a touch screen. For the majority of the world’s population, keyboards have been the symbols of input devices. Whether you are a professional or a hard-core gamer, a keyboard would always be the primary input device for you.Keyboards have been around with us since the beginning of the typewriters and digital computers. The keyboards we see now have evolved across a plethora of inventions, innovations, and technological advancements. In the present world, we have smartphones, smartwatches, smart washing machines, smart ... Read More

Mercedes Fleet Board Technology for All-Electric Truck

Sharon Christine
Updated on 21-Jan-2020 06:32:43

172 Views

The world these days is all about going green. With the increasing levels of pollution and its aftermaths like greenhouse effect and global warming, we are in a desperate need to replace the nonbiodegradable fossil fuels like petrol, diesel and coal with renewable energy resources like hydroelectricity, solar energy, geothermal energy and wind energy.Moreover, we are running out of fossil fuels at an alarming rate. Even this rate is also increasing. This is another promoter of the idea of going green. Nevertheless, we have an abundance of hydropower and wind energy. it has been quite a challenge for automotive manufacturers ... Read More

How Automation Testing Changed the Perspective

karthikeya Boyini
Updated on 21-Jan-2020 06:27:55

224 Views

Software Test Automation has surely changed the way software testing used to happen in the industry. Earlier, the tester is supposed to test what developer has developed – No questions asked. However, with the changing trend, testers have started taking the rope in their hand. Now, developers and testers are at par or we should say ahead and more responsible in project management. Now, the testers have to not only just check the functionality, but also need to check the performance and compatibility.Quality has become the center point now. The competition has moved from quantity to quality. But, even after ... Read More

How Zcash, Blockstack, and Appcoins Are Changing Digital Payment Systems

Sharon Christine
Updated on 21-Jan-2020 06:21:20

164 Views

If I ask you how much cash do you carry? Your answer would be limited up to maybe 5000 I guess, but still, you go out, shop, eat by spending very less cash. No, of course, you don’t get things for free but, with the digital payment mode. Paying through different platforms or online transactions has made life easier and less complex.You may have heard of the fancy word – Crypto-currency, something which always comes by digital payment. Just to brush up your knowledge, it is a digital currency which involves encryption techniques that are used to formulate the production ... Read More

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