|9 days ago||6 months ago|
|Apache License 2.0||Apache License 2.0|
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Ask HN: What are the best key-value self-hosted storage engines?
5 projects | news.ycombinator.com | 31 Mar 2022
In Java I like
It is more feature rich than you want but in Python I'd probably just use sqlite3 since it is in the standard library.
Solution for hash-map with >100M values
7 projects | reddit.com/r/java | 21 Dec 2020
I have had good results with mapdb
What are some alternatives?
Chronicle Map - Replicate your Key Value Store across your network, with consistency, persistance and performance.
H2 - H2 is an embeddable RDBMS written in Java.
Redisson - Redisson - Redis Java client with features of In-Memory Data Grid. Over 50 Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Publish / Subscribe, Bloom filter, Spring Cache, Tomcat, Scheduler, JCache API, Hibernate, MyBatis, RPC, local cache ...
JetBrains Xodus - Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
Exposed - Kotlin SQL Framework
Jedis - Redis Java client designed for performance and ease of use.
SQLDelight - SQLDelight - Generates typesafe Kotlin APIs from SQL
DBFlow - A blazing fast, powerful, and very simple ORM android database library that writes database code for you.
kotlin-jpa-specification-dsl - This library provides a fluent DSL for querying spring data JPA repositories using spring data Specifications (i.e. the JPA Criteria API), without boilerplate code or a generated metamodel.
Ktorm - A lightweight ORM framework for Kotlin with strong-typed SQL DSL and sequence APIs.
ObjectBox Java (Kotlin, Android) - Fast lightweight Java Database for storing and syncing objects in Mobile & IoT