throw exception in lambda - java 8

Question

I'm using lambda expressions. What is the equivalent of this:

for (Integer id: ids) {
    if (!repository.exists(id)) {
        throw new Exception .....
    }
}

I tried using this:

ids.stream().filter(id-> repository.exists(idStatut)).findAny().orElseThrow(() ->
                new Exception...
            );

But it doesn't work well

Eran · Accepted Answer · 2017-12-27 10:13:15Z

5

Based on your original loop, you want to throw an exception if any of the Integers don't pass the filter:

if (ids.stream().anyMatch(id -> !repository.exists(id)))
    throw new Exception ...

answered Dec 27, 2017 at 10:13

Eran

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1 Comment

Thank you ! I wasted all morning on it -_-"