RFR: CSR - JDK-8203428 Predicate::not

[Sundararajan Athijegannathan]

Actually it would be:

     Predicate.of(String::isEmpty).negate()

But

     not(String::isEmpty) reads almost like !str.isEmpty()

-Sundar

On 18/05/18, 10:41 PM, Daniel Fuchs wrote:
> Hi Jim,
>
> Have you thought of introducing something like:
>
> static <T> Predicate<T> Predicate.of(Predicate<T> target) {
>    return target;
> }
>
> instead?
>
> I think that might allow you to do things like:
>
>
>      Stream.of("", "A", "b", "c")
>         .filter(Predicate.of(String::isEmpty).not())
> .filter(Predicate.of("a"::equalsIgnoreCase).or("b"::equalsIgnoreCase))
> .count();
>
> best regards,
>
> -- daniel
>
> On 18/05/2018 17:35, Jim Laskey wrote:
>> Introduce a new static method Predicate::not which will allow 
>> developers to negate predicate lambdas trivially.
>>
>>
>> csr: https://bugs.openjdk.java.net/browse/JDK-8203428
>>
>