How to compare Java function object to a specific method?

Asked Mar 14 '17 at 17:45

Active Mar 14 '17 at 17:45

Viewed 39 times

Given the following code:

BooleanSupplier booleanSupplier = this::someMethod;

How can booleanSupplier be later compared to this::someMethod? With booleanSupplier == this::someMethod, Java complains that this::someMethod isn't expected in that context.

asked Mar 14 '17 at 17:45

Noel Yap

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This might help you. https://www.codementor.io/eh3rrera/using-java-8-method-reference-du10866vx – Pratik Ambani Mar 14 '17 at 17:48
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what do you want to achieve ? – Svetlin Zarev Mar 14 '17 at 17:48
You can only compare whether they are the same reference. You can't determine that they reference the same thing. i.e. they would always do the same thing. – Peter Lawrey Mar 14 '17 at 19:25
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What you can do is create a field `final BooleanSupplier someMethod = this::someMethod` which you can reuse and compare `if (booleanSupplier == someMethod)` – Peter Lawrey Mar 14 '17 at 19:27

How to compare Java function object to a specific method?

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