compactcode/compacted-collections

A sexier way to use google collections in your java projects.

A sexier way to use google collections in your Java projects.

compacted-collections brings the full power of object-oriented programming to your Java collections.

Modelled closely on the standard Ruby library.

Features:

• Fluent Interface
• Facade Pattern

Built on top of well known, high quality libraries:

• Google Collections
• Hamcrest

Usage

Overview

listOf("1", "2", "3", "4", "4").map(toInt()).filter(greaterThan(1)).reverse();

Transformation

listOf("1", "2").map(toInt());
listOf("1", "2").map(toInt()).reduce(sum());

Filtering

listOf(1, 2, 3).filter(greaterThan(1));
listOf(1, 2, 3).reject(lessThan(3));
listOf(1, 2).find(equalTo(1)); 
listOf(1, 2).first();
listOf(1, 2, 3).first(2); 
listOf(1, 2).last();
listOf(1, 2, 3).last(2); 

Sorting

listOf(1, 3, 2).sort(natural());
listOf(1, 2, 3).reverse();

Other

listOf("1", "2", "3").join(", ");
listOf("1", "2", "2").unique();
listOf("1", "2", null).compact();

Installation + Setup

This project is built using Apache Maven.

You can easily add it to any maven enabled project like so:

...
<repositories>
	<repository>
		<id>compacted-collections</id>
		<url>http://compactcode.github.com/compacted-collections/mavenrepo</url>
	</repository>
</repositories>
...
<dependencies>
	<dependency>
		<groupId>com.compactcode</groupId>
		<artifactId>compacted-collections</artifactId>
		<version>2.5</version>
	</dependency>
</dependencies>
...

Examples

If you'd like to see some compacted collections in action, check out the example project.