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 ryanharter.com
An Introduction to AutoValue :: Ryan Harter
| | qnoid.com
Heterogenous Containers... JSON (Part 2)
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| | This is a personal website, at the outskirts of the web, away from social media and publishing platforms.
| | www.aligelenler.com
Open Source Software and Database Technologies
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| | Open Source Software and Database Technologies, Java, J2EE
| | blog.eitchnet.ch
Java Equals and HashCode by Reflection - eitch's blog
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| | [AI summary] A technical guide explains best practices for overriding equals() and hashCode() in Java, comparing the performance of reflection-based libraries, Apache Commons utilities, and manual implementation.
| | konradreiche.com
Traversing your collections functional
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| Since most of the Java code I wrote in the past was on Android I was not able to enjoy too many Java 8 features yet. Though recently I wrote a microservice in Java using Spring Boot where I could make full use of lambdas and functional interfaces. The following method, for instance, returns the sum of all transactions for a specified instance by traversing their children. @RequestMapping(value = "/transaction/sum/{id}", method = RequestMethod.GET) BigDecimal Sum sum(@PathVariable long id) { List transactions = new ArrayList<>(); Transaction current = repository.find(id); while (current != null) { transactions.add(current); current = current.getChild(); } return transactions.stream().map(t -> t.getAmount()) .reduce(BigDecimal.ZERO, BigDecimal::add); } As some...