Uses of Interface
java.util.function.Predicate
Package | Description |
---|---|
java.util |
Contains the collections framework, some internationalization support classes,
a service loader, properties, random number generation, string parsing
and scanning classes, base64 encoding and decoding, a bit array, and
several miscellaneous utility classes.
|
java.util.concurrent |
Utility classes commonly useful in concurrent programming.
|
java.util.function |
Functional interfaces provide target types for lambda expressions
and method references.
|
java.util.regex |
Classes for matching character sequences against patterns specified
by regular expressions.
|
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 Predicate in java.util
Methods in java.util with parameters of type Predicate Modifier and Type Method Description Optional<T>
Optional. filter(Predicate<? super T> predicate)
If a value is present, and the value matches the given predicate, returns anOptional
describing the value, otherwise returns an emptyOptional
.boolean
ArrayDeque. removeIf(Predicate<? super E> filter)
boolean
ArrayList. removeIf(Predicate<? super E> filter)
default boolean
Collection. removeIf(Predicate<? super E> filter)
Removes all of the elements of this collection that satisfy the given predicate.boolean
PriorityQueue. removeIf(Predicate<? super E> filter)
boolean
Vector. removeIf(Predicate<? super E> filter)
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Uses of Predicate in java.util.concurrent
Methods in java.util.concurrent with parameters of type Predicate Modifier and Type Method Description boolean
ArrayBlockingQueue. removeIf(Predicate<? super E> filter)
boolean
ConcurrentLinkedDeque. removeIf(Predicate<? super E> filter)
boolean
ConcurrentLinkedQueue. removeIf(Predicate<? super E> filter)
boolean
CopyOnWriteArrayList. removeIf(Predicate<? super E> filter)
boolean
CopyOnWriteArraySet. removeIf(Predicate<? super E> filter)
boolean
LinkedBlockingDeque. removeIf(Predicate<? super E> filter)
boolean
LinkedBlockingQueue. removeIf(Predicate<? super E> filter)
boolean
LinkedTransferQueue. removeIf(Predicate<? super E> filter)
boolean
PriorityBlockingQueue. removeIf(Predicate<? super E> filter)
Constructors in java.util.concurrent with parameters of type Predicate Constructor Description ForkJoinPool(int parallelism, ForkJoinPool.ForkJoinWorkerThreadFactory factory, Thread.UncaughtExceptionHandler handler, boolean asyncMode, int corePoolSize, int maximumPoolSize, int minimumRunnable, Predicate<? super ForkJoinPool> saturate, long keepAliveTime, TimeUnit unit)
Creates aForkJoinPool
with the given parameters. -
Uses of Predicate in java.util.function
Methods in java.util.function that return Predicate Modifier and Type Method Description default Predicate<T>
Predicate. and(Predicate<? super T> other)
Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.static <T> Predicate<T>
Predicate. isEqual(Object targetRef)
Returns a predicate that tests if two arguments are equal according toObjects.equals(Object, Object)
.default Predicate<T>
Predicate. negate()
Returns a predicate that represents the logical negation of this predicate.static <T> Predicate<T>
Predicate. not(Predicate<? super T> target)
Returns a predicate that is the negation of the supplied predicate.default Predicate<T>
Predicate. or(Predicate<? super T> other)
Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another.Methods in java.util.function with parameters of type Predicate Modifier and Type Method Description default Predicate<T>
Predicate. and(Predicate<? super T> other)
Returns a composed predicate that represents a short-circuiting logical AND of this predicate and another.static <T> Predicate<T>
Predicate. not(Predicate<? super T> target)
Returns a predicate that is the negation of the supplied predicate.default Predicate<T>
Predicate. or(Predicate<? super T> other)
Returns a composed predicate that represents a short-circuiting logical OR of this predicate and another. -
Uses of Predicate in java.util.regex
Methods in java.util.regex that return Predicate Modifier and Type Method Description Predicate<String>
Pattern. asMatchPredicate()
Creates a predicate that tests if this pattern matches a given input string.Predicate<String>
Pattern. asPredicate()
Creates a predicate that tests if this pattern is found in a given input string. -
Uses of Predicate in java.util.stream
Methods in java.util.stream with parameters of type Predicate Modifier and Type Method Description boolean
Stream. allMatch(Predicate<? super T> predicate)
Returns whether all elements of this stream match the provided predicate.boolean
Stream. anyMatch(Predicate<? super T> predicate)
Returns whether any elements of this stream match the provided predicate.default Stream<T>
Stream. dropWhile(Predicate<? super T> predicate)
Returns, if this stream is ordered, a stream consisting of the remaining elements of this stream after dropping the longest prefix of elements that match the given predicate.Stream<T>
Stream. filter(Predicate<? super T> predicate)
Returns a stream consisting of the elements of this stream that match the given predicate.static <T, A, R> Collector<T,?,R>
Collectors. filtering(Predicate<? super T> predicate, Collector<? super T,A,R> downstream)
Adapts aCollector
to one accepting elements of the same typeT
by applying the predicate to each input element and only accumulating if the predicate returnstrue
.static <T> Stream<T>
Stream. iterate(T seed, Predicate<? super T> hasNext, UnaryOperator<T> next)
Returns a sequential orderedStream
produced by iterative application of the givennext
function to an initial element, conditioned on satisfying the givenhasNext
predicate.boolean
Stream. noneMatch(Predicate<? super T> predicate)
Returns whether no elements of this stream match the provided predicate.static <T> Collector<T,?,Map<Boolean,List<T>>>
Collectors. partitioningBy(Predicate<? super T> predicate)
Returns aCollector
which partitions the input elements according to aPredicate
, and organizes them into aMap<Boolean, List<T>>
.static <T, D, A> Collector<T,?,Map<Boolean,D>>
Collectors. partitioningBy(Predicate<? super T> predicate, Collector<? super T,A,D> downstream)
Returns aCollector
which partitions the input elements according to aPredicate
, reduces the values in each partition according to anotherCollector
, and organizes them into aMap<Boolean, D>
whose values are the result of the downstream reduction.default Stream<T>
Stream. takeWhile(Predicate<? super T> predicate)
Returns, if this stream is ordered, a stream consisting of the longest prefix of elements taken from this stream that match the given predicate.