Quick Apache Solr Setup
It has been long time since I started with setup/configuration related blog post. This post provides steps for setting up developer machine…
Blog
Practical engineering notes on architecture, backend, cloud, Rust, and Java.
Geospatial Queries in Apache Solr
“Find the five nearest stores,” “everything within 10 km of the user,” “sort results by distance” — these are everyday requirements, and Apa…
Closures in Java
A closure is a function bundled with the environment it captured. Here's how to simulate one in pre-Java 8 code, how Java 8 lambdas make it natural, and the capture rule that trips people up.