10.0.0-M4 : FutureStream module and improved type safety.
Milestone 4 of Cyclops X
M4 of Cyclops X introduces another new module cyclops-futurestream. Cyclops Futurestream provides support for asynchronous / parallel Streaming implemented as a Stream of Future based tasks. For developers familar with Java 8 Streams, this is a pretty easy to use API that can very performantly handle blocking I/O based tasks (such as block operations on resources from file, or remote systems / dbs).
Cyclops X
Cyclops X (cyclops 10) unifies cyclops-react and the cyclops integration modules on the cyclops versioning scheme. The goal of this project is remove a whole class of runtime errors from application code by providing much stricter APIs that prevent exceptional states from arising. A secondary goal is to modularize cyclops into a series of smaller more focused projects so that functionality is easy to find and developers only take what they need.
What’s new Cyclops X
-> Enhancements over cyclops-react 2
- Fast purely functional datastructures (Vector, Seq / List, LazySeq / LazyList, NonEmptyList, HashSet, TreeSet, TrieSet, HashMap, LinkedMap, MultiMap, TreeMap, BankersQueue, LazyString, Discrete Interval Encoded Tree, Zipper, Range, Tree, DifferenceList, HList, Dependent Map )
- Structural Pattern Matching API (deconstruct algebraic product and sum types)
- Improved type safety via the removal of unsafe APIs
-- E.g. Unlike Optional, Option has no get method (which could throw a null pointer)
-- New data structures do not support operations that would throw exceptions (you can't call head on an empty list for example) - Eager and Lazy alternatives for most datastructures (Option is eager, Maybe is lazy + reactive)
- Improved naming of types (Function1-8 rather than Fn1-8, Either not Xor)
- Group id is changed to com.oath.cyclops
- Versioning between cyclops-react and cyclops is merged on cyclops versioning scheme (version 10 = Cyclops X)
- Light weight dependencies : reactive-streams API & Agrona
What’s new Cyclops X Milestone 4
- Futurestream Module
- mapOrCatch / flatMapOrCatch operators added to Try
- Transform method added to TupleN
- Naming convention improvements : flatMapI / flatMapIterable to become concatMap. flatMapP / flatMapPublisher to become mergeMap
- Performance improvements on Map / filter operations in Seq
- Cyclops Try type safety and usability enhancements
- Zippable type simplified
- indexOf / lastIndexOf fold operator added
Changelog
Check out the features delivered and bugs fixed -
Dependency changes
Cyclops no longer depends on pCollections or jOOλ
Get cyclops X
Gradle
Cyclops
compile 'com.oath.cyclops:cyclops:10.0.0-M4’Cyclops AnyM
compile 'com.oath.cyclops:cyclops-anym:10.0.0-M4’Cyclops Futurestream
compile 'com.oath.cyclops:cyclops-futurestream:10.0.0-M4’Maven
Cyclops
<dependency>
<groupId>com.oath.cyclops</groupId>
<artifactId>cyclops</artifactId>
<version>10.0.0-M4</version>
</dependency>Cyclops AnyM
<dependency>
<groupId>com.oath.cyclops</groupId>
<artifactId>cyclops-anym</artifactId>
<version>10.0.0-M4</version>
</dependency>Cyclops Futurestream
<dependency>
<groupId>com.oath.cyclops</groupId>
<artifactId>cyclops-anym</artifactId>
<version>10.0.0-M4</version>
</dependency>Documentation
Articles
- Reactive programming with Java 8 and simple-react: The Tutorial
- JDK Collection eXtensions
- Awesome Fluent Functions
- Straightforward Structural Pattern Matching
- Performant Functional Try
- Articles on medium
- Introducting the Cyclops Monad API
- Easier Try with Cyclops
- 4 flavors of Java 8 Functions
- Memoise Functions in Java 8
- Strategy Pattern in Java 8
- Functional Feature Toggling
- Dependency injection using the Reader Monad in Java8
- Scheduling a Stream
- Neophytes guide to Java 8 : Welcome to the Future
- Deterministic and Non-Deterministic Finite State Machines with Cyclops
License
cyclops-react is licensed under the Apache 2.0 license.