What is mapdb?

Introduction In this article, we’ll look at the MapDB library — an embedded database engine accessed through a collection-like API. We start by exploring the core classes DB and DBMaker that help configure, open, and manage our databases. Then, we’ll dive into some examples of MapDB data structures that store and retrieve data.

What is mapdb in jankotek?

GitHub – jankotek/mapdb: MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine. Use Git or checkout with SVN using the web URL.

How long does mapdb take to run?

MapDB is extensively unit-tested. By default, only tiny fraction of all tests are executed, so build finishes under 10 minutes. Full test suite has over million test cases and runs for several hours/days. To run full test suite, set -Dmdbtest=1 VM option. Longer unit tests might require more memory.

What is htreemap in mapdb?

MapDB’s HTreeMap provides HashMap and HashSet collections for working with our database. HTreeMap is a segmented hash tree and does not use a fixed-size hash table. Instead, it uses an auto-expanding index tree and does not rehash all of its data as the table grows.