#JavaDev

💡 Spring Boot: Better avoid logging inside tight loops, since you could affect the application performance and flood log files. #SpringBoot #JavaDev

Spring Batch makes ETL tasks easy to manage. Just define jobs, steps, and chunks — and it handles everything else. It also manages transactions, retries, and job status by default. #DevLife #JavaDev #SpringBatch #ayshriv

Java Tip 💡: Use Files.walk() to recursively process files in a directory. #Java #JavaDev

💡 Java tip: Use StringBuilder instead of String for concatenating strings in loops. ❌ String is immutable, making it inefficient in loops, especially large ones. ✅ StringBuilder is mutable and optimized for repeated string appends. #Java #JavaDev

🚀 Spring Boot: Spring Data JPA has a built-in support for pagination with Pageable. ✅You should use pagination in your repositories instead of fetching all. #SpringBoot #JavaDev

🚀 Spring Boot: Better keep the default spring.main.allow-bean-definition-overriding=false configuration. ✅This way Spring fails to start if two beans share the same name. ✅Useful because bean overriding can hide configuration bugs #SpringBoot #JavaDev

Java Tip💡: Starting from Java 14 you can use "record" to create short, immutable, data-carrying objects. ✅ They are shorter than ordinary POJOs ✅ They have built-in equals(), hashCode(), toString() ✅ They are immutable by default #Java #JavaDev

Spring Boot makes you feel like you’re doing a lot less, but actually building a lot more. That’s framework design done right. #JavaDev #SpringBoot #ayshriv

🚀 Spring Boot: If you need to inject grouped configuration properties into classes, you can use @ConfigurationProperties instead of @Value #SpringBoot #JavaDev

🚀 Java: Use ReentrantReadWriteLock Java concurrence utility if you have to deal with frequent reads and fewer writes. #Java #JavaDev

🚀 Spring Boot: Use @TestConfiguration to use test-specific beans that must not be loaded in production. #SpringBoot #JavaDev

💡 Java tip: Starting from Java 8 you can use ChronoUnit.between(start, end) to calculate time intervals in a specific unit (days, hours, minutes) without manual math. #Java #JavaDev

🚀 Spring Boot: To make Jackson create your objects from JSON in an explicit, and predictable way, you can use @JsonCreator. 🟢 Each parameter is explicitly bound #SpringBoot #JavaDev

🚀Spring Cloud: Centralize config with Spring Cloud Config before you copy everywhere. ✅ Centralize config with Spring Cloud Config instead of copying everywhere #SpringBoot #JavaDev 🧵

🚀 Spring Boot: You can cache expensive API calls using @Cacheable and Redis. ✅First request with a specific key: real API call ✅Subsequent requests: Redis (milliseconds) #SpringBoot #JavaDev 🧵Spring Boot demo link to follow:

🚀 Spring Boot: You can enable /actuator/beans to debug missing beans. By hitting the actuator endpoint, you will see information like: ✅ Bean name ✅ Bean type ✅ Bean scope ✅ Bean dependencies #SpringBoot #JavaDev

💡 SpringBoot: Define @ComponentScan boundaries carefully to avoid to avoid scanning entire packages accidentally. #SpringBoot #JavaDev

💡 Java tip: Collectors.toMap(...) will throw an error if your keys collide. Always consider a merge function. #Java #JavaDev

🚀 Spring Boot: Better use global filters/interceptors only for true cross-cutting concerns, and avoid business logic. They are executed for every incoming HTTP request. #SpringBoot #JavaDev

🚀 Spring Boot: @TransactionalEventListener can be used to implement post-commit actions. #SpringBoot #JavaDev 🧵A full article with an example to follow