Architecturally Elegant - lahteenmaki.net

Oracle table() function disabling optimizations, part 2 Abstract Large union-all kills parsing performance, use an unpivot instead.

Modbus TCP and home automation Abstract Modbus TCP can be used to read and control some devices at home Authors Jyri-Matti Lähteenmäki Date 2024-10-06 Status Published I have some home automation hobbies, and I’ve been using Modbus TCP to read and control…

Oracle table() function disabling optimizations Abstract Including table() function anywhere in a query in Oracle database disables some optimizations.

Hard problems Abstract There are certain hard problems in any industry Authors Jyri-Matti Lähteenmäki Date 2023-04-08 Status Published There are certain hard problems in any industry.

A brief intro to Oracle macros etc Abstract Some basics of Pipelined Table Functions, Polymorphic Table Functions and Macros in Oracle Authors Jyri-Matti Lähteenmäki Date 2022-09-02 Status Published Relational databases and particularly SQL (Structured Qu…

Functional programming in Java Abstract About libraries meta-utils and functional-utils to help in functional programming in Java.

Making Swagger codegen tolerable Abstract Java client codegen for Swagger doesn’t support everything out of the box, but it seems to be extensible.

Combinator birds Abstract Table of known combinators/birds and their properties Authors Jyri-Matti Lähteenmäki Date 2019-08-26 Status Published I’ve been learning some basics about combinators and birds.

Applicative Parsing Abstract Implementing a combinatorial parser utilizing applicative parsing.

Making Jackson tolerable Abstract I believe the “right way” to do serialization and deserialization is a “type class based” approach, like what Aeson does.

Goodbye Blogger, hello Pandoc and scripts Abstract How I moved my blog from Blogger to a more developer-friendly platform.

About Subtext Abstract Some thoughts related to Subtext.

Java Streams vs C# LINQ vs Java6 - updated examples Authors Jyri-Matti Lähteenmäki Date 2014-05-17 Status Published Java 8 is published.

Java Streams vs C# LINQ vs Java6 Authors Jyri-Matti Lähteenmäki Date 2013-04-10 Status Published A while back I ran into an article comparing C# LINQ to the upcoming Java8 Streams API: http://blog.informatech.cr/2013/03/24/java-streams-preview-vs-net-linq…

Haskell and non-blocking asynchronous IO Authors Jyri-Matti Lähteenmäki Date 2013-01-05 Status Published Here begins my journey to the magnificent world of Haskell.

Simple construction of common queries with JPA2 Authors Jyri-Matti Lähteenmäki Date 2012-08-21 Status Published In the previous post I demonstrated an API for executing queries.

Java Persistence API 2.

Statically typed Vector and Matrix algebra Authors Jyri-Matti Lähteenmäki Date 2012-01-12 Status Published I took a course on Machine Learning a while back, just for fun.

Composable querying with Scala Authors Jyri-Matti Lähteenmäki Date 2011-06-28 Status Published It’s been a while since my last post, but finally I was able to find enough time to re-implement the whole querying-thing and experiment with composability.

Querying with Scala Authors Jyri-Matti Lähteenmäki Date 2011-02-14 Status Published Let’s say we have a simple domain model with departments and employees (behold my imagination…).

Greetings Authors Jyri-Matti Lähteenmäki Date 2011-02-05 Status Published I felt like I needed a place to write some thoughts and views of programming.