Funava

Partial function application paradigm in Java

License	The Apache License, Version 2.0
GroupId	io.jmnarloch
ArtifactId	funava
Last Version	0.2.0
Release Date	Oct 17, 2015
Type	jar
Description	Funava Partial function application paradigm in Java
Project URL	https://github.com/jmnarloch/funava.git
Source Code Management	https://github.com/jmnarloch/funava.git

Download funava

Filename	Size
funava-0.2.0.pom
funava-0.2.0.jar	14 KB
funava-0.2.0-sources.jar	13 KB
funava-0.2.0-javadoc.jar	69 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/io.jmnarloch/funava/ -->
<dependency>
    <groupId>io.jmnarloch</groupId>
    <artifactId>funava</artifactId>
    <version>0.2.0</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/io.jmnarloch/funava/
implementation 'io.jmnarloch:funava:0.2.0'

Gradle Kotlin

// https://jarcasting.com/artifacts/io.jmnarloch/funava/
implementation ("io.jmnarloch:funava:0.2.0")

Apache Buildr

'io.jmnarloch:funava:jar:0.2.0'

Apache Ivy

<dependency org="io.jmnarloch" name="funava" rev="0.2.0">
  <artifact name="funava" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='io.jmnarloch', module='funava', version='0.2.0')
)

Scala SBT

libraryDependencies += "io.jmnarloch" % "funava" % "0.2.0"

Leiningen

[io.jmnarloch/funava "0.2.0"]

Dependencies

test (2)

Group / Artifact	Type	Version
org.mockito : mockito-all	jar	1.10.19
junit : junit	jar	4.12

Project Modules

There are no modules declared in this project.

Funava

Small Java library for partial function application.

Funava is implemented without a single Java class.

Setup

Currently only as snapshot available from: https://oss.sonatype.org/content/repositories/snapshots/

<dependency>
    <groupId>io.jmnarloch</groupId>
    <artifactId>funava</artifactId>
    <version>0.2.0</version>
</dependency>

Examples

Safe cast

Object val = "test";

String result =  SafeCast.cast(val).to(String.class).orElse("default");

// result == test

Ternary operator

int i = 15;

int result = Condition.when(i % 2 == 0).then(i / 2).orElse(i * 3);

// i == 45

Partial function application

public String url(String scheme, String host, int port, String username, String repo) {
    return String.format("%s://%s:%d/%s/%s", scheme, host, port, username, repo);
}

String url = Partial.function(this::url)
                .arg("https")
                .arg("github.com")
                .arg(443)
                .arg("jmnarloch")
                .apply("funava");

// url == https://github.com:443/jmnarloch/funava

public int sum(int a, int b) {
        return a + b;
}

int sum = Partial.function(this::sum)
                .arg(1)
                .apply(2);

// 1 + 2 == 3

public int substract(int a, int b) {
        return a - b;
}

int diff = Partial.function(this::substract)
                .rarg(2)
                .apply(1);

// 1 - 2 == -1

public int product(int a, int b) {
        return a * b;
}
    
int product = Partial.function(this::product)
                .arg(4)
                .apply(5);

// 4 * 5 == 20

License

Apache 2.0

Versions

Version
0.2.0 Oct 17, 2015
0.1.0 Sep 12, 2015