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Category: spring-boot

  • Archives

  • Java Records and Jackson

    Introduction Java records which were introduced as a preview feature in Java 14 and stabilized in Java 16 were intended to be used as concise, immutable data carriers. They are…

  • Time Zones and the Java Developer

    Introduction Dealing with time is one of the most deceptively complex challenges in software development. A simple Date object might seem sufficient at first, but when your application goes global—with…

  • Transaction Isolation

    Introduction Transaction Isolation is the “I” from the ACID acronym and is one of the properties that needs to be addressed in order to leave the database in a valid…

  • Spring Boot Test Containers

    Introduction One of the reasons containers are used is to have a light-weight environment that does not differ from one machine to another thereby making configuration dependent on operating system…

  • The Hibernate MultipleBagFetchException

    Introduction In the previous article on the N+1 query problem, we saw that one of the ways to resolve the problem was to change the fetch type of the relation…

  • JPA Hibernate N+1 Query Problem

    Introduction The N+1 Query problem refers to the inefficient way of loading entities and their relations. In a nutshell, a query (1) is issued and results returned but because of…

  • Data Access Observability

    Introduction In previous articles we have seen how we can enable observability in spring -boot applications. So far we can trace methods called and understand them from the outside. However,…

  • Viewing SQL statements

    Introduction When we developers use ORM frameworks, they arguably help us go fast with development. They generate SQL statements for us and we very often do not know exactly what…

  • Spring Boot Observability

    Introduction Before we move on to how observability is achieved using spring boot, let’s first define what observability means. Observability means understanding the state of a system based on target…

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