java stream filter multiple conditions
public static List<A> makeListfromGroup(Map<Object, List<A>> m, Predicate<A> condition) return m.values() .stream() .map(as -> as.stream().filter(condition).findAny().orElse(null)) .filter(Objects::nonNull) .collect(Collectors,You can use two streams but it would be horrible. It would must better to have a data structure which is designed for Properties. properties.ifPresentDouble("averagevote", avgRatingModel::setAvgRating); properties.ifPresentInt("nbvotes"
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 java stream filter multiple conditions 相關參考資料
lambda - Java 8 Streams: multiple filters vs. complex condition ...
The code that has to be executed for both alternatives is so similar that you can't predict a result reliably. The underlying object structure might differ but that's no challenge to the hots... https://stackoverflow.com java 8 - How to use stream to apply multiple filters and convert ...
public static List<A> makeListfromGroup(Map<Object, List<A>> m, Predicate<A> condition) return m.values() .stream() .map(as -> as.stream().filter(condition).findAny().orEl... https://stackoverflow.com How to filter a list for multiple condition using java 8 stream ...
You can use two streams but it would be horrible. It would must better to have a data structure which is designed for Properties. properties.ifPresentDouble("averagevote", avgRatingModel::se... https://stackoverflow.com lambda - How to apply multiple predicates to a java.util.Stream ...
I am assuming your Filter is a type distinct from java.util.function.Predicate , which means it needs to be adapted to it. One approach which will work goes like this: things.stream().filter(t -> ... https://stackoverflow.com Multiple conditions to filter a result set using Java 8 - Stack ...
A quite literal translation (and the required classes to play around) interface ScienceStudent String getClassroomId(); } interface MathStudent String getId(); } Set<ScienceStudent> filter( C... https://stackoverflow.com java - Stream filter by two parameters - Stack Overflow
Your problem is that you're using a different Predicate each time, because although c is the parameter to your predicate, p also varies: final Node p; Predicate<Node> matchesParentId = c -&... https://stackoverflow.com Java 8 lambdas multiple filter calls - Stack Overflow
In such a small example I think readability isn't really compromised, but I still prefer using separate filter methods. Certainly if it's any more complex. This is indeed not very expensive. ... https://stackoverflow.com Java 8 Applying stream filter based on a condition - Stack Overflow
One way to do it is. Stream<Source> stream = sourceMeta.getAllSources.parallelStream().map(x -> (Source)x); if(isAccessDisplayEnabled) stream = stream.filter(s -> isAccessDisplayEnabled(s... https://stackoverflow.com lambda - Java 8 Streams: multiple filters vs. complex condition - Stack ...
The code that has to be executed for both alternatives is so similar that you can't predict a result reliably. The underlying object structure might differ but that's no challenge to the hotsp... https://stackoverflow.com Single vs. Multiple Filters in the Java Stream API - DZone Java
It might be tempting to run multiple filters in your streams, but be careful—it might come with a cost. Use your filters judiciously. https://dzone.com |