Lukas Eder
Founder at Data Geekery
St. Gallen, St. Gallen, Switzerland
Summary
🤩
RockstarLukas Eder is the founder of Data Geekery and a Java Champion with 16 years of experience building developer-focused tooling around SQL and Java. He is the creator of jOOQ, a widely used library that makes writing SQL in Java expressive and type-safe, and an active maintainer of companion OSS like jOOλ and jOOR. His work spans deep database engineering—adapting and extending schemas for PostgreSQL/CockroachDB and contributing features to the H2 engine—to fluent API design for Java reflection and functional programming ergonomics. Based in St. Gallen, Switzerland, he blends product-minded entrepreneurship with hands-on systems programming and a knack for making low-level APIs delightful. Less obvious: he frames SQL as a deliberately mysterious yet immensely powerful device, and channels that philosophy into tools that expose SQL’s strengths rather than hide them.
16 years of coding experience
Stackoverflow
215,965reputation
26.6mreached
3,456answers
256questions
browser
top-5%
arraylist
top-1%
plsql
top-1%
pagination
top-1%
regex
top-5%
maven
top-1%
Github Skills (115)
tuple10
postgresql10
hsqldb10
javas10
casting10
db-schema10
pagination10
maven10
reflections10
database-management10
schema10
operator10
plsql10
schema-design10
tuples10
Programming languages (23)
Github contributions (5)
jOOQ/jOOR
Dec 2011 - Mar 2022
jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Other languages have much simpler constructs to access type meta information at runtime. Let us make Java reflection better.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:221 commits, 26 PRs, 146 pushes in 10 years 4 months
Contributions summary:Lukas primarily contributed to the jOOR library, a fluent reflection API for Java. Their work involved implementing core reflection functionalities, addressing overloaded method calls and constructor calls, and refactoring code for enhanced usability. They also added features to work with private fields, private constructors, and added a proxy for map objects for simulated POJO behavior, ultimately improving the library's ability to interact with and manipulate Java class structures at runtime.
apijava-reflectionmetaruntimeintuitive
jOOQ/jOOL
Mar 2014 - Oct 2022
jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.
Role in this project:Back-end Developer
Back-end DeveloperContributions:50 reviews, 490 commits, 92 PRs in 8 years 9 months
Contributions summary:Lukas contributed heavily to the core library `jOOλ`, specifically adding a comprehensive set of helper functions and classes to extend Java 8's functional capabilities. The user implemented a wide variety of additions including support for tuple types and methods like `concat()`, `shuffle()`, `join()`, and `groupBy()` to enhance stream processing. They also contributed many functional tools for working with primitive types, adding a deep level of functional programming support.
java-8streamsjdkmissingsupport-function
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