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com.googlecode.javaewah:JavaEWAH

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 always more efficient storage-wise than an uncompressed bitmap (implemented in Java as the BitSet class). Unlike some alternatives, javaewah does not rely on a patented scheme.

Ecosystem
repo1.maven.org
Latest Release
1.2.3
about 3 years ago
Versions
77
Dependent Packages
97
Dependent Repos
396
com.palantir.baseline:gradle-baseline-java 7.4.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
513 versions - Latest release: about 4 hours ago - 3 dependent packages - 1 dependent repositories - 333 stars on GitHub
com.palantir.baseline:gradle-baseline-java-config 7.4.0
Baseline configuration files for the Baseline Gradle plugin
513 versions - Latest release: about 4 hours ago - 333 stars on GitHub
com.palantir.gradle.gitversion:gradle-git-version 5.0.0
Palantir open source project
48 versions - Latest release: 15 days ago - 1 dependent package - 14 dependent repositories - 417 stars on GitHub
org.wildfly.core:wildfly-core-feature-pack-common 32.0.0.Beta4
Resources used in Galleon feature pack used to provision WildFly Core based servers
166 versions - Latest release: 19 days ago - 10 dependent packages - 59 dependent repositories - 191 stars on GitHub
Top 9.9% on repo1.maven.org
org.wildfly.core:wildfly-core-parent 32.0.0.Beta4
WildFly: Core Parent Aggregator
424 versions - Latest release: 19 days ago - 13 dependent packages - 67 dependent repositories - 191 stars on GitHub
Top 10.0% on repo1.maven.org
org.wildfly.core:wildfly-core-galleon-pack 32.0.0.Beta4
Parent for various legacy and Galleon feature pack modules
246 versions - Latest release: 19 days ago - 15 dependent packages - 42 dependent repositories - 191 stars on GitHub
org.wildfly.core:wildfly-core-component-matrix 32.0.0.Beta3 💰
WildFly Core: Component Matrix
242 versions - Latest release: 25 days ago - 27 stars on GitHub
com.palantir.gradle.jdks:gradle-jdks 0.74.0
Download specific JDKs versions automatically
73 versions - Latest release: 26 days ago - 1 dependent package - 1 dependent repositories - 20 stars on GitHub
com.palantir.gradle.jdks:gradle-jdks-distributions 0.74.0
Palantir open source project
74 versions - Latest release: 26 days ago - 2 dependent packages - 20 stars on GitHub
com.palantir.javaformat:palantir-java-format 2.87.0
Palantir Java Format
123 versions - Latest release: 28 days ago - 16 dependent packages - 3 dependent repositories - 680 stars on GitHub
com.palantir.javaformat:palantir-java-format-jdk-bootstrap 2.87.0
Palantir open source project
87 versions - Latest release: 28 days ago - 2 dependent packages - 667 stars on GitHub
com.palantir.javaformat:idea-plugin 2.87.0
Palantir open source project
90 versions - Latest release: 28 days ago - 674 stars on GitHub
com.palantir.javaformat:palantir-java-format-spi 2.87.0
Palantir open source project
123 versions - Latest release: 28 days ago - 31 dependent packages - 2 dependent repositories - 667 stars on GitHub
com.palantir.javaformat:gradle-palantir-java-format 2.87.0
Palantir open source project
123 versions - Latest release: 28 days ago - 11 dependent packages - 1 dependent repositories - 674 stars on GitHub
Top 5.5% on repo1.maven.org
org.infinispan:infinispan-bom 16.1.0
Infinispan BOM module
385 versions - Latest release: about 1 month ago - 38 dependent packages - 254 dependent repositories - 1,314 stars on GitHub
com.palantir.gradle.jdkslatest:gradle-jdks-latest 0.26.0
Palantir open source project
25 versions - Latest release: about 1 month ago - 3 stars on GitHub
org.eclipse.jgit:org.eclipse.jgit-parent 7.5.0.202512021534-r
Pure Java implementation of Git
169 versions - Latest release: 3 months ago - 3 dependent repositories
Top 0.1% on repo1.maven.org
org.eclipse.jgit:org.eclipse.jgit 7.5.0.202512021534-r
Repository access and algorithms
169 versions - Latest release: 3 months ago - 1,304 dependent packages - 8,773 dependent repositories
com.palantir.baseline:baseline-error-prone 6.79.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
497 versions - Latest release: 3 months ago - 32 dependent packages - 1 dependent repositories - 333 stars on GitHub
com.palantir.baseline:baseline-null-away 6.79.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
181 versions - Latest release: 3 months ago - 333 stars on GitHub
Top 7.3% on repo1.maven.org
com.sonatype.nexus:nexus-platform-api 5.2.15-01
This project contains the Java API for interacting with Nexus Repository Manager.
138 versions - Latest release: 3 months ago - 7 dependent packages - 5 dependent repositories
org.apache.hive:hive-exec 4.2.0
The Apache Software Foundation provides support for the Apache community of open-source software ...
44 versions - Latest release: 4 months ago - 428 dependent packages - 3,002 dependent repositories - 36 stars on GitHub
org.apache.hive:hive 4.2.0
The Apache Software Foundation provides support for the Apache community of open-source software ...
38 versions - Latest release: 4 months ago - 2 dependent packages - 7 dependent repositories - 36 stars on GitHub
org.netbeans.cluster:ide RELEASE280
Apache NetBeans is an integrated development environment, tooling platform, and application frame...
31 versions - Latest release: 4 months ago - 12 dependent repositories - 6 stars on GitHub
io.nem:symbol-sdk-core 1.0.4
symbol-sdk-core lib for Sybol SDK Java
19 versions - Latest release: 6 months ago - 3 dependent packages
org.openl.jgit:org.eclipse.jgit-parent 7.3.0.202506031305-openl
Pure Java implementation of Git
12 versions - Latest release: 8 months ago
Top 9.2% on repo1.maven.org
org.openl.jgit:org.eclipse.jgit 7.3.0.202506031305-openl
Repository access and algorithms
12 versions - Latest release: 8 months ago - 28 dependent packages - 2 dependent repositories
za.co.absa.spline.agent.spark:spark-2.4-spline-agent-bundle_2.12 2.2.3
Spline Agent for Apache Spark
41 versions - Latest release: 9 months ago - 196 stars on GitHub
za.co.absa.spline.agent.spark:spark-2.4-spline-agent-bundle_2.11 2.2.3
Spline Agent for Apache Spark
41 versions - Latest release: 9 months ago - 1 dependent repositories - 196 stars on GitHub
za.co.absa.spline.agent.spark:spark-2.3-spline-agent-bundle_2.11 2.2.3
Spline Agent for Apache Spark
41 versions - Latest release: 9 months ago - 196 stars on GitHub
za.co.absa.spline.agent.spark:spark-2.2-spline-agent-bundle_2.11 2.2.3
Spline Agent for Apache Spark
41 versions - Latest release: 9 months ago - 196 stars on GitHub
Top 7.8% on repo1.maven.org
edu.stanford.protege:protege-editor-owl 5.6.6
OWL ontology editing infrastructure used by the Protege desktop application.
23 versions - Latest release: 10 months ago - 28 dependent packages - 52 dependent repositories - 1,132 stars on GitHub
edu.stanford.protege:protege-parent 5.6.6
Protege is a free, open source ontology editor that supports the full OWL 2 standard.
36 versions - Latest release: 10 months ago - 1,132 stars on GitHub
org.commonjava.indy.embed:indy-embedder 3.4.5
CommonJava top-level parent POM.
79 versions - Latest release: 11 months ago - 6 dependent packages - 12 dependent repositories - 34 stars on GitHub
org.apache.nifi:nifi-hive3-processors 1.28.1
Apache NiFi is an easy to use, powerful, and reliable system to process and distribute data.
44 versions - Latest release: over 1 year ago - 1 dependent package - 60 dependent repositories
com.palantir.baseline:gradle-junit-reports 5.42.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
388 versions - Latest release: about 2 years ago - 4 dependent packages - 333 stars on GitHub
com.srcclr:srcclr-maven-plugin 3.1.25
The SRC:CLR Maven Plugin analyzes the dependencies of your project, both immediate and transitive...
61 versions - Latest release: over 2 years ago
Top 7.5% on repo1.maven.org
com.twitter:algebird-core_2.12 0.13.10
algebird-core
13 versions - Latest release: over 2 years ago - 40 dependent packages - 6 dependent repositories - 2,182 stars on GitHub
Top 6.9% on repo1.maven.org
com.twitter:algebird-core_2.13 0.13.10
algebird-core
6 versions - Latest release: over 2 years ago - 18 dependent packages - 6 dependent repositories - 2,182 stars on GitHub
Top 5.3% on repo1.maven.org
com.twitter:algebird-core_2.11 0.13.10
algebird-core
25 versions - Latest release: over 2 years ago - 67 dependent packages - 29 dependent repositories - 2,182 stars on GitHub
org.wso2.carbon.identity.fetch.remote:identity-fetch-remote 0.8.4
This is a Carbon bundle that represent the Remote Repository Configuration Deployer Module.
33 versions - Latest release: almost 3 years ago - 3 stars on GitHub
com.palantir.baseline:baseline-refaster-testing 4.192.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
344 versions - Latest release: almost 3 years ago - 2 dependent packages - 1 dependent repositories - 334 stars on GitHub
com.palantir.baseline:baseline-refaster-rules 4.192.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
345 versions - Latest release: almost 3 years ago - 333 stars on GitHub
com.palantir.baseline:baseline-refaster-javac-plugin 4.192.0
A Gradle plugin for applying Baseline-recommended build and IDE settings
345 versions - Latest release: almost 3 years ago - 334 stars on GitHub
org.wildfly.bom:wildfly-jakartaee8 26.1.3.Final
Jakarta EE 8 Dependency Management.
38 versions - Latest release: about 3 years ago - 4 dependent packages - 37 dependent repositories - 27 stars on GitHub
org.wildfly:wildfly-component-matrix 26.1.3.Final 💰
WildFly: Component Matrix
53 versions - Latest release: about 3 years ago - 2 dependent packages - 7 dependent repositories - 27 stars on GitHub
com.github.lontime:deps-pom 1.4.0
dependencies for lontime
30 versions - Latest release: over 3 years ago - 1 dependent package
org.wso2.carbon.identity.fetch.remote:org.wso2.carbon.identity.remotefetch.core.feature 0.8.1
This feature represent the Remote Repository Configuration Deployer Module.
30 versions - Latest release: about 4 years ago - 25 dependent repositories - 3 stars on GitHub
com.futureble.bom:commons-bom 1.1.0
Commons Bill of Materials.
2 versions - Latest release: over 4 years ago - 3 dependent packages - 0 stars on GitHub
Top 8.7% on repo1.maven.org
org.wildfly.core:wildfly-core-feature-pack 16.0.1.Final
Parent for various legacy and Galleon feature pack modules
285 versions - Latest release: over 4 years ago - 335 dependent packages - 111 dependent repositories - 191 stars on GitHub
io.proximax:java-xpx-chain-sdk 0.6.2
The ProximaX Sirius Chain Java SDK is a Java library for interacting with the Sirius Blockchain.
6 versions - Latest release: almost 6 years ago - 1 dependent package - 4 dependent repositories - 7 stars on GitHub
net.janklab.jump:jump-R2019b 0.1.0
References for jarext dependencies for Matlab R2019b
1 version - Latest release: almost 6 years ago - 1 dependent repositories - 0 stars on GitHub
za.co.absa.spline:spark-agent-bundle-2.3 0.4.2
Data Lineage Tracking And Visualization Solution
3 versions - Latest release: about 6 years ago - 642 stars on GitHub
za.co.absa.spline:spark-agent-bundle-2.4 0.4.2
Data Lineage Tracking And Visualization Solution
3 versions - Latest release: about 6 years ago - 642 stars on GitHub
za.co.absa.spline:spark-agent-bundle-2.2 0.4.2
Data Lineage Tracking And Visualization Solution
3 versions - Latest release: about 6 years ago - 642 stars on GitHub
io.nem:sdk-core 0.16.3
sdk-core lib for NEM2 sdk Java
9 versions - Latest release: about 6 years ago - 2 dependent packages
io.proximax:java-chain-xipfs-sdk 0.6.1
Official ProximaX P2P Storage SDK Library in Java.
7 versions - Latest release: over 6 years ago - 3 dependent repositories - 2 stars on GitHub
org.wildfly.bom:wildfly-javaee8 18.0.0.Beta1 💰
Java EE 8 Dependency Management.
12 versions - Latest release: over 6 years ago - 2 dependent packages - 39 dependent repositories - 27 stars on GitHub
Top 6.3% on repo1.maven.org
com.twitter:algebird-core_2.10 0.13.5
algebird-core
34 versions - Latest release: over 7 years ago - 61 dependent packages - 18 dependent repositories - 2,182 stars on GitHub
net.sourceforge.owlapi:jfact 5.0.3
JFact is an OWL DL reasoner, based on FaCT++
14 versions - Latest release: over 7 years ago - 13 dependent packages - 58 dependent repositories - 14 stars on GitHub
com.fathzer:in-memory-table 0.0.6
The parent pom used by projects from fathzer.com.
6 versions - Latest release: over 7 years ago - 0 stars on GitHub
io.nem:sdk 0.9.1
nem2 official sdk
3 versions - Latest release: over 7 years ago - 1 dependent repositories
com.github.hyukjinkwon:hive-exec 1.2.1.spark2
The Apache Software Foundation provides support for the Apache community of open-source software ...
1 version - Latest release: over 7 years ago - 13 dependent packages - 2 dependent repositories
com.github.hyukjinkwon:hive 1.2.1.spark2
The Apache Software Foundation provides support for the Apache community of open-source software ...
1 version - Latest release: over 7 years ago
org.commonjava.indy.embed:indy-embedder-savant 1.2.7
REST + Cartographer + DotMaven + Autoprox + Folo + Revisions + SetBack + Infinispan infrastructure
42 versions - Latest release: almost 8 years ago - 4 dependent packages - 35 stars on GitHub
org.commonjava.indy.embed:indy-embedder-min 1.2.6
CommonJava top-level parent POM.
39 versions - Latest release: almost 8 years ago - 2 dependent packages - 35 stars on GitHub
com.github.terma:fast-select 3.2.0
Extremely fast and compact in-memory embedded column oriented database
27 versions - Latest release: over 8 years ago - 1 dependent package - 1 dependent repositories - 19 stars on GitHub
org.commonjava.indy.embed:indy-embedder-easyprox 1.0.2
REST + DotMaven + Autoprox + Revisions + SetBack
15 versions - Latest release: over 9 years ago - 2 dependent packages - 34 stars on GitHub
io.fabric8:fabric8-project-bom-full 2.2.169
Bill of material
87 versions - Latest release: over 9 years ago - 4 dependent packages - 2 dependent repositories - 1,755 stars on GitHub
com.moz.fiji.express:fiji-express-examples 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
6 versions - Latest release: over 9 years ago - 1 dependent package - 1 stars on GitHub
com.moz.fiji.express:fiji-express-lib 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
6 versions - Latest release: over 9 years ago - 11 dependent packages - 1 stars on GitHub
com.moz.fiji.express:fiji-express-tools 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
7 versions - Latest release: over 9 years ago - 1 dependent package - 1 stars on GitHub
com.moz.fiji.modeling:fiji-modeling-examples 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
7 versions - Latest release: over 9 years ago - 1 dependent package - 1 stars on GitHub
com.moz.fiji.modeling:fiji-modeling 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
8 versions - Latest release: over 9 years ago - 3 dependent packages - 1 stars on GitHub
com.moz.fiji.express:fiji-express-music 0.1.9
Fiji allows the imposition of schema and much else upon HBase.
7 versions - Latest release: over 9 years ago - 1 dependent package - 1 stars on GitHub
io.snappydata:snappy-spark-hive-thriftserver_2.10 1.6.1
SnappyData distributed data store and execution engine
7 versions - Latest release: almost 10 years ago - 2 dependent packages
com.moz.fiji.modeling:fiji-modeling-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 1 stars on GitHub
com.moz.fiji.modeling:fiji-modeling-examples-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 1 stars on GitHub
com.moz.fiji.express:fiji-express-tools-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 1 stars on GitHub
com.moz.fiji.express:fiji-express-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 10 dependent packages - 1 stars on GitHub
com.moz.fiji.express:fiji-express-music-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 1 stars on GitHub
com.moz.fiji.express:fiji-express-examples-test 0.1.1
Fiji allows the imposition of schema and much else upon HBase.
2 versions - Latest release: almost 10 years ago - 1 stars on GitHub
io.fabric8:fabric8-project-bom-with-deps 2.2.66
Bill of material
27 versions - Latest release: over 10 years ago - 1,773 stars on GitHub
org.commonjava.aprox.embed:aprox-embedder-easyprox 0.25.1
REST + DotMaven + Autoprox + Revisions + SetBack
18 versions - Latest release: over 10 years ago - 3 dependent packages - 1 dependent repositories - 33 stars on GitHub
org.commonjava.aprox.embed:aprox-embedder-savant 0.25.1
REST + Cartographer + DotMaven + Autoprox + Folo + Revisions + SetBack
18 versions - Latest release: over 10 years ago - 3 dependent packages - 1 dependent repositories - 33 stars on GitHub
com.twitter:algebird-core_2.9.3 0.7.2
algebird-core
10 versions - Latest release: over 11 years ago - 19 dependent packages - 2,182 stars on GitHub
Top 1.3% on repo1.maven.org
org.spark-project.hive:hive-exec 0.13.1
The Apache Software Foundation provides support for the Apache community of open-source software ...
7 versions - Latest release: over 11 years ago - 44 dependent packages - 295 dependent repositories
org.spark-project.hive:hive 0.13.1
The Apache Software Foundation provides support for the Apache community of open-source software ...
4 versions - Latest release: over 11 years ago
org.testpackage:testpackage 0.3.1
Command line JUnit test runner for standalone testing
5 versions - Latest release: over 11 years ago - 2 dependent packages - 2 dependent repositories - 14 stars on GitHub
org.testpackage:coverage-jacoco 0.3.1
Command line JUnit test runner for standalone testing
2 versions - Latest release: over 11 years ago - 1 dependent repositories - 14 stars on GitHub
com.madgag:org.eclipse.jgit 3.4.0.1.1-UNOFFICIAL-ROBERTO-RELEASE 💰
Repository access and algorithms
32 versions - Latest release: almost 12 years ago - 31 dependent packages - 15 dependent repositories - 2 stars on GitHub
com.madgag:org.eclipse.jgit-parent 3.4.0.1.1-UNOFFICIAL-ROBERTO-RELEASE 💰
Pure Java implementation of Git (unofficial patched build by Roberto Tyley)
32 versions - Latest release: almost 12 years ago - 2 stars on GitHub
edu.berkeley.cs.shark:hive-exec 0.11.0-shark-0.9.1
Hive is a data warehouse infrastructure built on top of Hadoop see http://wiki.apache.org/hadoop/...
2 versions - Latest release: almost 12 years ago - 4 dependent packages - 3 dependent repositories
com.bacoder.jgit:org.eclipse.jgit 3.1.0-201309071158-r
Repository access and algorithms
2 versions - Latest release: over 12 years ago - 14 dependent packages - 2 dependent repositories
com.bacoder.jgit:org.eclipse.jgit-parent 3.1.0-201309071158-r
Pure Java implementation of Git
2 versions - Latest release: over 12 years ago
Top 7.8% on repo1.maven.org
com.twitter:algebird-core_2.9.2 0.1.13
algebird-core
6 versions - Latest release: almost 13 years ago - 12 dependent packages - 10 dependent repositories - 2,182 stars on GitHub
com.twitter:algebird_2.9.2 0.1.8
algebird
8 versions - Latest release: about 13 years ago - 2 dependent packages - 3,522 stars on GitHub
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Registry repo1.maven.org
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CodeMeta codemeta.json
Package Details
PURL pkg:maven/com.googlecode.javaewah/JavaEWAH
spec
License Apache-2.0
Namespace com.googlecode.javaewah
First Release about 14 years ago
Last Synced 15 days ago
Keywords
bitmap-indexes bitset ewah java
Repository
Stars 551 on GitHub
Forks 147 on GitHub
Docker Dependents 2,554
Docker Downloads 1,350,045,789
repos.ecosyste.ms
Rankings on repo1.maven.org
Overall Top 6.6%
Dependent packages Top 0.8%
Dependent repos Top 0.7%
Docker downloads Top 0.1%
Funding
https://github.com/sponsors/lemire