Functionals Library for Java - Summary

This group is not part of the GNU Project.

The Functionals Library for Java (lambda4J) brings constructs of functional programming into the Java programming language system.  Specifically, as I am required to use Java for some things at my place of work, I find a need for higher-order functions and first-class functions ... moreso than what the Java specification provides.

I have implemented some higher-order functions (map/2, fold/3 and fold/2, of course, and filter/2, partition/2, any/2 and every/2) that operate with a functional (reified into the Java object system) and either an iterator or a java.util.List instance, and several other function constructors (identity/1, complement/1, compose/2, conjoin/2, disjoin/2, curry/2).

Much work needs to be done!  I have integrated lambda terms into the Java language:  this feature must be tested thoroughly. I have also just completed an implementation of a lazy list (that allows for lazy mapping and filtering as well as evaluation).  Head/tail (aka car and cdr) are now available to the Java programmer using lambda4j.

This is a working set of libraries that I wish to provide to the community.  I am sure that other functional programmers using Java will benefit from functional constructs, and other input will help make this project a better one for the user.

Registration Date: Tue 12 Nov 2002 05:11:13 AM UTC
License: GNU General Public License v2 or later
Development Status: 3 - Alpha