Hi all,
Just wanted to let you guys know that I am successfully compiling and executing
code using [functor] and Java 8. And am also using [functor] functional
interfaces with lambdas.
So instead of writing:
UnaryPredicate isEven = new UnaryPredicate() {
public boolean test(Integer obj) {
return obj % 2 == 0;
}
};
One can simply write:
UnaryPredicate isEven = (Integer obj) -> { return obj % 2 == 0; };
FWIW, Google Guava's Predicate [1] is not a functional interface, so it cannot
be used with lambdas, as in the example above.
I'll continue to experiment with [functor] and Java 8. There are only two open
issues in Jira, one regarding generators (there's a branch with a proposal
implementation) and another one about the equals() method in the [functor] API.
I wrote a short blog post [2] about how I'm running Java 8 in Eclipse Juno, in
case anyone is interested in trying it too. The code is hosted at GitHub [3].
Cheers,
[1] http://code.google.com/p/guava-libraries/source/browse/guava/src/com/google/common/base/Predicate.java
[2] http://www.kinoshita.eti.br/2012/12/21/using-apache-commons-functor-functional-interfaces-with-java-8-lambdas/
[3] https://github.com/kinow/try-lambdas
Bruno P. Kinoshita
http://kinoshita.eti.br
http://tupilabs.com
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