# Uses of Interface
java.util.function.LongUnaryOperator

Packages that use LongUnaryOperator
Package
Description
java.util.concurrent.atomic
A small toolkit of classes that support lock-free thread-safe programming on single variables.
java.util.function
Functional interfaces provide target types for lambda expressions and method references.
java.util.stream
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.

## Uses of LongUnaryOperator in java.util.concurrent.atomic

Methods in java.util.concurrent.atomic with parameters of type LongUnaryOperator
Modifier and Type
Method
Description
`long`
AtomicLong.`getAndUpdate​(LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the current value with the results of applying the given function, returning the previous value.
`long`
AtomicLongArray.`getAndUpdate​(int i, LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the element at index `i` with the results of applying the given function, returning the previous value.
`long`
AtomicLongFieldUpdater.`getAndUpdate​(T obj, LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the field of the given object managed by this updater with the results of applying the given function, returning the previous value.
`long`
AtomicLong.`updateAndGet​(LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the current value with the results of applying the given function, returning the updated value.
`long`
AtomicLongArray.`updateAndGet​(int i, LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the element at index `i` with the results of applying the given function, returning the updated value.
`long`
AtomicLongFieldUpdater.`updateAndGet​(T obj, LongUnaryOperator updateFunction)`
Atomically updates (with memory effects as specified by `VarHandle.compareAndSet(java.lang.Object...)`) the field of the given object managed by this updater with the results of applying the given function, returning the updated value.

## Uses of LongUnaryOperator in java.util.function

Methods in java.util.function that return LongUnaryOperator
Modifier and Type
Method
Description
`default LongUnaryOperator`
LongUnaryOperator.`andThen​(LongUnaryOperator after)`
Returns a composed operator that first applies this operator to its input, and then applies the `after` operator to the result.
`default LongUnaryOperator`
LongUnaryOperator.`compose​(LongUnaryOperator before)`
Returns a composed operator that first applies the `before` operator to its input, and then applies this operator to the result.
`static LongUnaryOperator`
LongUnaryOperator.`identity()`
Returns a unary operator that always returns its input argument.
Methods in java.util.function with parameters of type LongUnaryOperator
Modifier and Type
Method
Description
`default LongUnaryOperator`
LongUnaryOperator.`andThen​(LongUnaryOperator after)`
Returns a composed operator that first applies this operator to its input, and then applies the `after` operator to the result.
`default LongUnaryOperator`
LongUnaryOperator.`compose​(LongUnaryOperator before)`
Returns a composed operator that first applies the `before` operator to its input, and then applies this operator to the result.

## Uses of LongUnaryOperator in java.util.stream

Methods in java.util.stream with parameters of type LongUnaryOperator
Modifier and Type
Method
Description
`static LongStream`
LongStream.`iterate​(long seed, LongPredicate hasNext, LongUnaryOperator next)`
Returns a sequential ordered `LongStream` produced by iterative application of the given `next` function to an initial element, conditioned on satisfying the given `hasNext` predicate.
`static LongStream`
LongStream.`iterate​(long seed, LongUnaryOperator f)`
Returns an infinite sequential ordered `LongStream` produced by iterative application of a function `f` to an initial element `seed`, producing a `Stream` consisting of `seed`, `f(seed)`, `f(f(seed))`, etc.
`LongStream`
LongStream.`map​(LongUnaryOperator mapper)`
Returns a stream consisting of the results of applying the given function to the elements of this stream.