Insights into Java coding, OO design & architecture
Java beans have a readability problem. Not the pattern itself — fields plus getters and setters is fine, and a great deal of the ecosystem still relies on it — but the house style the average enterprise codebase wraps around it. Six lines of boilerplate Javadoc and braces for a one-word concept, repeated for every [ ]
When working with JSON in Java, Jackson’s JsonNode tree model is a popular choice — especially in framework code that processes or transforms data. But what if you want to query that tree using flexible JsonPath expressions? Jayway JsonPath is a powerful tool, but using it with pre-parsed Jackson trees isn’t as obvious as you’d [ ]
I found a hugely insightful article on naming. It encourages concise naming, and lays out really clear principles on how to name variables well. A name has two goals: After a name has accomplished those goals, any additional characters are dead weight. https://journal.stuffwithstuff.com/2016/06/16/long-names-are-long/
PostgreSQL is a great database. It can do just about anything. But one area that has surprising gaps is case insensitive search. Surely, having the benefit of thirty years of database research, users can search for a customer without knowing the exact capitalization of their name? Turns out it s not so easy.. Read on to [ ]
PostgreSQL major versions are incompatible as to data format stored on disk. There is a pg_upgrade tool available but instructions for Windows aren t directly usable. Aren Cambre fills this gap with accurate working instructions to use pg_upgrade on Windows.
Recently I had reason to investigate a reported vulnerability in the YUI 2 library. CVE-2022-48197 claimed cross-site scripting in the TreeView component, but provided very little detail. Was this a real security issue? Low-Quality CVE Report The initial CVE-2022-48197 report had a vague description, very few references and seemed not to have been credited elsewhere [ ]
Here s a puzzle. Does a wrapped URL refer to the wrapped result, or the original URL input that was wrapped? Language is our tool, but occasionally we can get confused or go in circles over semantics. Find the story of this brain-bender, and how we clarified it, here. This all started with a need to [ ]
Hey! Want to be able to open JIRA issues or Wiki pages instantly, without needing to open a bookmark before you can search? Chrome lets you define custom search engines to search JIRA/ Wiki, using only a keyword in your URL bar. Setup Open Chrome and right-click the Address Bar. Select Manage search engines . Next, [ ]
This is an often-asked question on the Internet and one which, previously, had no good answer. Now, thanks to @Jianrong Chen, we have a one-liner configuration to do it! application.properties The magic here is to set spring.thymeleaf.templates_root to load from the filesystem, rather than the classpath. This means the project no longer has to [ ]
Queues offer a promise of reliability for integrating applications, but can cause more subtle operational risks. Queues exhibit bi-modal behavior low latency when everything is working well, but can rapidly form large backlogs when a failure occurs. This can dramatically increase the recovery time from outages. Amazon offer an extremely interesting article about the [ ]