Optional – Java 8 Optional-like APIs for everyone

Differences compared to other Optional-like APIs

	Optional	Java 8's Optional	Guava's Optional	Optio
Required JDK version	1.7	1.8	1.6	1.7
Android-compatible	Yes	Only for API 24 (Nougat) and up	Yes	Yes
Serializable	Yes	No	Yes	No
Support for primitive types	Yes, all of them except boolean	Only for int, double, and long	None	None
Support for functional use-cases	Partially	Yes, including filter(), flatMap(), etc.	None	None

Unique to Optional

• absent() instead of empty(). Why?
• or() instead of orElse().
• orNull() instead of orElse(null).
• ifPresentOrElse(Consumer, Function).
• OptionalByte, OptionalShort, OptionalFloat, and OptionalChar.

Including Optional to your project

Include Optional to your Gradle project by adding it as a dependency in your build.gradle like so:

   repositories {
       maven { url "https://jitpack.io" }
   }
   
   dependencies {
       compile 'com.hadisatrio:Optional:v1.0.1'
   }

Contributions

Any kind of contributions will be appreciated. PR away!

License

Optional is published under the MIT license.

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p.s., Please let me know if you're using Optional in your projects. Drop an email at hi[you-know-what-to-put-here]hadisatrio.com. ;)