Uses of Interface
java.util.concurrent.ConcurrentMap
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Packages that use ConcurrentMap Package Description java.util.concurrent Utility classes commonly useful in concurrent programming.java.util.stream Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections. -
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Uses of ConcurrentMap in java.util.concurrent
Subinterfaces of ConcurrentMap in java.util.concurrent Modifier and Type Interface and Description interfaceConcurrentNavigableMap<K,V>AConcurrentMapsupportingNavigableMapoperations, and recursively so for its navigable sub-maps.Classes in java.util.concurrent that implement ConcurrentMap Modifier and Type Class and Description classConcurrentHashMap<K,V>A hash table supporting full concurrency of retrievals and high expected concurrency for updates.classConcurrentSkipListMap<K,V>A scalable concurrentConcurrentNavigableMapimplementation. -
Uses of ConcurrentMap in java.util.stream
Methods in java.util.stream with type parameters of type ConcurrentMap Modifier and Type Method and Description static <T,K,A,D,M extends ConcurrentMap<K,D>>
Collector<T,?,M>Collectors. groupingByConcurrent(Function<? super T,? extends K> classifier, Supplier<M> mapFactory, Collector<? super T,A,D> downstream)Returns a concurrentCollectorimplementing a cascaded "group by" operation on input elements of typeT, grouping elements according to a classification function, and then performing a reduction operation on the values associated with a given key using the specified downstreamCollector.static <T,K,U,M extends ConcurrentMap<K,U>>
Collector<T,?,M>Collectors. toConcurrentMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends U> valueMapper, BinaryOperator<U> mergeFunction, Supplier<M> mapSupplier)Returns a concurrentCollectorthat accumulates elements into aConcurrentMapwhose keys and values are the result of applying the provided mapping functions to the input elements.Methods in java.util.stream that return types with arguments of type ConcurrentMap Modifier and Type Method and Description static <T,K> Collector<T,?,ConcurrentMap<K,List<T>>>Collectors. groupingByConcurrent(Function<? super T,? extends K> classifier)Returns a concurrentCollectorimplementing a "group by" operation on input elements of typeT, grouping elements according to a classification function.static <T,K,A,D> Collector<T,?,ConcurrentMap<K,D>>Collectors. groupingByConcurrent(Function<? super T,? extends K> classifier, Collector<? super T,A,D> downstream)Returns a concurrentCollectorimplementing a cascaded "group by" operation on input elements of typeT, grouping elements according to a classification function, and then performing a reduction operation on the values associated with a given key using the specified downstreamCollector.static <T,K,U> Collector<T,?,ConcurrentMap<K,U>>Collectors. toConcurrentMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends U> valueMapper)Returns a concurrentCollectorthat accumulates elements into aConcurrentMapwhose keys and values are the result of applying the provided mapping functions to the input elements.static <T,K,U> Collector<T,?,ConcurrentMap<K,U>>Collectors. toConcurrentMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends U> valueMapper, BinaryOperator<U> mergeFunction)Returns a concurrentCollectorthat accumulates elements into aConcurrentMapwhose keys and values are the result of applying the provided mapping functions to the input elements.
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