Null-Chain

Emulates Optional Chaining (?.) for Java.

Example (JavaScript):

const val = obj?.owner?.name;

Example (NullChain):

final String name = NullChain.of(obj).then(Obj::owner).then(Person::name).orNull();

If the value is null in any then-step, null is returned. So you don't have to worry about whether an NPE could be thrown.

Psychopaths can also use the yolo() method, for a shorter syntax, but at what cost...

final String name = NullChain.yolo(() -> obj.owner.name);

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Last update: 2022-03-15