From 5d7f37f49a54302ac120bc1d4e8d3609fe0abc34 Mon Sep 17 00:00:00 2001
From: "Edward M. Kagan" <pagan@tabor.one>
Date: Tue, 23 Nov 2021 23:59:05 +0300
Subject: [PATCH] Article research started

---
 readme.md | 53 +++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 39 insertions(+), 14 deletions(-)

diff --git a/readme.md b/readme.md
index 3841e53..bca2f70 100644
--- a/readme.md
+++ b/readme.md
@@ -9,15 +9,28 @@
 
 ## Initila list of techs
 
-- [Apache Cayenne](https://github.com/apache/cayenne)
-- [Ebean](https://github.com/ebean-orm/ebean)
-- [jOOQ](https://github.com/jOOQ/jOOQ)
-- [speedment](https://github.com/speedment/speedment)
+[💳]: ## "non-free actually"
+[✨]: ## "free and open-source"
+[🧬]: ## "JPA (Java Persistence API)"
+[🦠]: ## "JDO (Java Data Objects)"
+[📝]: ## "DB-first"
+[🧱]: ## "Object-first"
+[🧰]: ## "Has tools package"
+[🩹]: ## "Community driven tools"
+
+<!-- [🚂]: ## "DDL" -->
+
+- [Apache Cayenne](https://github.com/apache/cayenne) [📝] [🧰] [✨]
+- [Apache OpenJPA](https://github.com/apache/openjpa) [🧬] [✨]
+- [Ebean](https://github.com/ebean-orm/ebean) [🧱] [🧰] [✨]
+- [jOOQ](https://github.com/jOOQ/jOOQ) [💳] [📝] [🧰]
+- [speedment](https://github.com/speedment/speedment) [💳] [📝]
 - [ORMLite Core](https://github.com/j256/ormlite-core)
-- [EclipseLink](https://github.com/eclipse-ee4j/eclipselink)
-- [MyBatis](https://github.com/mybatis/mybatis-3)
+- [MyBatis](https://github.com/mybatis/mybatis-3) [📝]
 - [Querydsl](https://github.com/querydsl/querydsl)
-- [Hibernate](https://github.com/hibernate/hibernate-orm) (as JPA representative - zero mark)
+- [Hibernate](https://github.com/hibernate/hibernate-orm) [🧬] [🩹] [✨]
+- [EclipseLink](https://github.com/eclipse-ee4j/eclipselink) [🧬] [✨]
+- [DataNucleus](https://github.com/datanucleus) [🧬] [🦠] [✨]
 
 ## Initial criteria
 
@@ -85,11 +98,23 @@ Good to see if:
 
 - **speedment** - cool-looking streaming API, but it's way of from common SQL-like syntax & failes to work with UUID columns corectly, also they wanna' our money, dude if we need something not straightly mapped. Out of competition.
 - **jOOQ** - enterprise style peace of ..., but still in.
--
 
-- [Apache Cayenne](https://github.com/apache/cayenne)
-- [Ebean](https://github.com/ebean-orm/ebean)
-- [ORMLite Core](https://github.com/j256/ormlite-core)
-- [EclipseLink](https://github.com/eclipse-ee4j/eclipselink)
-- [Querydsl](https://github.com/querydsl/querydsl)
-- [Hibernate](https://github.com/hibernate/hibernate-orm) (as JPA representative - zero mark)
+## Article cross analysis
+
+Sources:
+
+- [Performance Evaluation of JPA Based ORM Techniques](https://www.researchgate.net/publication/313263645_PERFORMANCE_EVALUATION_OF_JPA_BASED_ORM_TECHNIQUES) - Hibernate and EclipseJPA are best of JPA realizations (2016)
+- [Optimizing JPA Performance: An EclipseLink, Hibernate, and OpenJPA Comparison](https://dzone.com/articles/jpa-performance-optimization) - Hibernate looks better in comparison (2010)
+- [JPA Performance Benchmark ](https://www.jpab.org/) - good starting point for testing JPA-based ORMs. Best parter for PostgreSQL denoted here is EclipseLink and Hibernate (2012)
+- [Why JDO ?](http://db.apache.org/jdo/why_jdo.html) - feature comparison table for JDBC, EJB, JPA, JDO, etc.
+
+Tools:
+
+- [HibernateTools - Reverse Engineering and Code Generation](https://docs.jboss.org/tools/4.0.1.Final/en/hibernatetools/html/plugins.html#refeng_codegen) - how to generate classes for Hibernate from plain DB.
+
+#### Honorable mentioning
+
+- EJB 4.0 (now stands for Jakarta Enterprise Beans) is supported only in GlassFish 6 which is a part of Eclipse Foundation family. It's not included in research due to high binding to one particular implimentation with low chance of change in future.
+- EOF (Enterprise Objects Framework) is a part of Apple now (originaly designed in NeXT). It supports java from back in a days, but now it's obsolete as of April 2005 (rise of Objective-C and Mac OS Tiger Intel-epoch)
+- Oracle Kodo - JPA-based framework from Oracle, does not compete due to Oracle involvment and price tag.
+- Oracle TopLink - part of Oracles' Fusion Middleware, was donated to Eclipse Foundation in 2007, and renamed to EclipseLink, so TopLink is obsolete now.