Java: Combining multiple predicates

Question

In Java, is there a short elegant way to combine multiple predicates (Guava Predicate) into one?

Currently, I have some list of predicates:

Collection<Predicate<TypeA>> preds = ...;

And I have some code that loops through the predicates and returns false if any one of them are false. Is there a one-liner that accomplishes the same thing?

Umm... write a method to do it for you? Now it is a one liner for users! — Thomas Eding, Nov 08 '11 at 01:28

score 7 · Accepted Answer · answered Nov 08 '11 at 01:29

7

If you're using Guava, it looks like Predicates#and will do what you want.

answered Nov 08 '11 at 01:29

Hugh

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score 2 · Answer 2 · edited Jan 09 '17 at 11:22

2

If you are using the Google Guava library, this is merely Predicates.and(preds).

edited Jan 09 '17 at 11:22

Al.G.

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answered Nov 08 '11 at 01:32

Michael Deardeuff

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Java: Combining multiple predicates

2 Answers2