Hibernate and Java Database Connectivity are two different approaches that developers can use to interact between a Java application and the database. Your answer should show the hiring manager that you understand these interfaces and know when to use them. You can name a few of the main differences between the two frameworks. One of the main differences is Hibernation is an object-relational mapping, or ORM tool, while JDBC does not have an object-relational mapping mechanism.
Another difference between the two relates to caching. Hibernate has a caching mechanism that retains data for use in the future when combined with its automatic object mapping functionality while JDBC has no built-in caching functionality. A Java architect must leverage the advantages of various technologies, such as the Hibernate and JDBC frameworks, to build the best systems.
Your response should show you know the pros and cons of using each technology. Include the main advantages of using Hibernate by comparing the two interfaces.
Due to this architectural difference, JDBC is more difficult to use, and there is an increased risk for mistakes when compared with Hibernate. Hibernate also has faster performance than JDBC due to its caching functionality.
While JDBC can be used effectively for a small app used by a few people, it is not as scalable as Hibernate, which can be used for both small and large applications. This is a major benefit as scalability is essential for a smart web application that performs well despite facing a lot of traffic. Handling conflicts is an important skill for a Java architect.
Explaining the behavioral process you would use to handle this scenario can show a recruiter you can function well in a team. You can also use your answer to show your suitability for a future leadership role. When doing a code review, I start with static analysis results for example, sonar. Next I would pick up a unit test for a complex functionality. If a programmer can write a simple and understandable unit test, he can definitely write good code.
Next, I look for 4 principles of Simple Design. After this, there are other things we can look for - You decide. I do not believe agile means no architecture. I think agile brings in the need to separate architecture and design. For me architecture is about things which are difficult to change : technology choices, framework choices, communication between systems etc. It would be great if a big chunk of architectural decisions are made before the done team starts. There would always be things which are uncertain.
Inputs to these can come from spikes that are done as part of the Done Scrum Team. In the above example it only brings back user name. MOM is useful for asynchronous request-reply or publish-subscribe messaging because a request may take a long time to complete or several parties may be interested in the actual message. Another application listening to the queue will respond to the event by taking the order and then placing that order with another third party system e. The third application may be responsible for taking the order and sending emails on order statuses such as confirmation and completion.
All these events take place asynchronously. SOA Vs. Service Oriented Architecture. This flexibility of micro services architecture comes at a price of more complexity due to more moving parts in the architecture. This is because. Q2: How does a Java EE application integrate with other systems? Can you discuss some of the high level architectures you are experienced with?
In your experience, what are some of the common architectural and development mistakes? What causes performance issues in Java? In your experience, what are some of the key security considerations in an enterprise Java application? Hiring a Contract Manager? Our Contract Manager interview questions and answers will help you hire the most qualified Contract Manager candidate for your job.
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