Enriching is Easy
Today I’d like to talk about a pattern that as far as I know is unique to Java 8. It makes use of the unusual way Java 8 implements lambdas as single-method interfaces, and the support for default...
View ArticleValidation in Octarine
A Record in Octarine is a heterogeneous map, whose keys carry type information about their values. The only type guarantee you get is that if a Record contains a Key<T> , then the value pointed...
View ArticleOctarine vs Rekord: Design Comparison
Rekord is an excellent Java 7 library by my friend and sometime colleague Samir, which overlaps in several respects with my Java 8 library Octarine. The similarities are due both to a common ancestry...
View ArticleExtractors
An Extractor<S, T> may be seen as a partial function from S to T: it can only “extract” a value of type T from a value of type S if such a value (or the material from which one can be created) is...
View ArticleWhat’s New In Octarine
Octarine is now at version 0.5, and has been enhanced with New Stuff: Transformers Transform records (and anything else you have extractors/lenses for) with a fluent mapping DSL. Key<String>...
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