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fastutil

fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, sorting algorithms, and fast, practical I/O classes for binary and text files. This module adds data structures based on references, bytes, and characters.

License

License
Categories

Categories

fastutil General Purpose Libraries High Performance
GroupId

GroupId

it.unimi.dsi
ArtifactId

ArtifactId

fastutil-extra
Last Version

Last Version

8.5.4
Release Date

Release Date
Type

Type

jar
Description

Description

fastutil
fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists and priority queues with a small memory footprint and fast access and insertion; provides also big (64-bit) arrays, sets and lists, sorting algorithms, and fast, practical I/O classes for binary and text files. This module adds data structures based on references, bytes, and characters.
Project URL

Project URL

http://fastutil.di.unimi.it/
Source Code Management

Source Code Management

https://github.com/vigna/fastutil

Download fastutil-extra

Filename Size
fastutil-extra-8.5.4.pom
fastutil-extra-8.5.4.jar 7 MB
fastutil-extra-8.5.4-sources.jar 3 MB
fastutil-extra-8.5.4-javadoc.jar 7 MB
Browse

How to add to project

<!-- https://jarcasting.com/artifacts/it.unimi.dsi/fastutil-extra/ -->
<dependency>
    <groupId>it.unimi.dsi</groupId>
    <artifactId>fastutil-extra</artifactId>
    <version>8.5.4</version>
</dependency>
// https://jarcasting.com/artifacts/it.unimi.dsi/fastutil-extra/
implementation 'it.unimi.dsi:fastutil-extra:8.5.4'
// https://jarcasting.com/artifacts/it.unimi.dsi/fastutil-extra/
implementation ("it.unimi.dsi:fastutil-extra:8.5.4")
'it.unimi.dsi:fastutil-extra:jar:8.5.4'
<dependency org="it.unimi.dsi" name="fastutil-extra" rev="8.5.4">
  <artifact name="fastutil-extra" type="jar" />
</dependency>
@Grapes(
@Grab(group='it.unimi.dsi', module='fastutil-extra', version='8.5.4')
)
libraryDependencies += "it.unimi.dsi" % "fastutil-extra" % "8.5.4"
[it.unimi.dsi/fastutil-extra "8.5.4"]

Dependencies

compile (1)

Group / Artifact Type Version
it.unimi.dsi : fastutil-core jar 8.5.4

test (1)

Group / Artifact Type Version
junit : junit jar 4.12

Project Modules

There are no modules declared in this project.

Welcome to fastutil

fastutil is a collection of type-specific Java classes that extend the Java Collections Framework by providing several containers, such as maps, sets, lists and prority queues, implementing the interfaces of the java.util package; it also provides big (64-bit) arrays, sets, lists, and fast, practical I/O classes for binary and text files.

fastutil provides a huge collection of specialized classes generated starting from a parameterized version; the classes are much more compact and much faster than the general ones. Please read the package documentation for more information.

Since version 8.5.4, fastutil is split into three jars for convenience:

  • fastutil-core.jar contains data structures based on integers, longs, doubles, and objects;

  • fastutil-extra.jar adds data structures based on references, bytes, and characters;

  • fastutil.jar adds the remaining data structures: booleans, shorts, and floats.

Each jar depends on the previous one.

You can also create a small, customized fastutil jar (which you can put in your repo, local maven repo, etc.) using the find-deps.sh shell script. It has mild prerequisites, as only the jdeps tool is required (bundled with JDK 8). It can be used to identify all fastutil classes your project uses and build a minimized jar only containing the necessary classes.

Building

First, you have to make sources to get the actual Java sources. After that, ant jar will generate a single jar file; ant javadoc will generate the API documentation; ant junit will run the unit tests.

If you want to obtain the three jars above, you have to run the script split.sh, and then ant osgi-rest.

The Java sources are generated using a C preprocessor. The gencsource.sh script reads in a driver file, that is, a Java source that uses some preprocessor-defined symbols and some conditional compilation, and produces a (fake) C source, which includes the driver code and some definitions that customize the environment.

Versions

Version
8.5.4
8.5.3