The bit array data structure is implemented in Java as the BitSet class. Unfortunately, this fails to scale without compression.
JavaEWAH is a word-aligned compressed variant of the Java bitset class. It uses a 64-bit run-length encoding (RLE) compression scheme.
The goal of word-aligned compression is not to achieve the best compression, but rather to improve query processing time. Hence, we try to save CPU cycles, maybe at the expense of storage. However, the EWAH scheme we implemented is ...
Artifacts using JavaEWAH (104)
WildFly: Core Galleon Pack
Last Release on May 12, 2026
12.JGit Core26 usages
org.openl.jgit » org.eclipse.jgit BSD +1
Repository access and algorithms
Last Release on Jul 21, 2025
Sound and music live programming environment.
Last Release on Nov 7, 2024
14.JFact19 usages
net.sourceforge.owlapi » jfact LGPL
JFact is an OWL DL reasoner, based on FaCT++
Last Release on Sep 23, 2018
15.JGit Core15 usages
com.bacoder.jgit » org.eclipse.jgit BSD +1
Repository access and algorithms
Last Release on Sep 7, 2013
Git Team Provider (Core)
Last Release on Dec 2, 2025
Git integration for pitest
Last Release on Dec 4, 2025
Hive Query Language
Last Release on Jun 16, 2018
19.Fiji11 usages
com.moz.fiji.express » fiji-express-lib Apache
Fiji allows the imposition of schema and much else upon HBase.
Last Release on Jun 23, 2016
20.Fiji10 usages
com.moz.fiji.express » fiji-express-test Apache
Fiji allows the imposition of schema and much else upon HBase.
Last Release on Apr 8, 2016
