Uses of Interface
java.util.function.Supplier

Packages that use Supplier

Package	Description
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.module	Classes to support module descriptors and creating configurations of modules by means of resolution and service binding.
java.net.http	HTTP Client and WebSocket APIs
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.logging	Provides the classes and interfaces of the Java 2 platform's core logging facilities.
java.util.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
jdk.dynalink.linker	Contains interfaces and classes needed by language runtimes to implement their own language-specific object models and type conversions.
jdk.jshell	Provides interfaces for creating tools, such as a Read-Eval-Print Loop (REPL), which interactively evaluate "snippets" of Java programming language code.

Uses of Supplier in java.lang

Methods in java.lang with parameters of type Supplier

Modifier and Type	Method	Description
default void	System.Logger.log(System.Logger.Level level, Supplier<String> msgSupplier)	Logs a lazily supplied message.
default void	System.Logger.log(System.Logger.Level level, Supplier<String> msgSupplier, Throwable thrown)	Logs a lazily supplied message associated with a given throwable.
static <S> ThreadLocal<S>	ThreadLocal.withInitial(Supplier<? extends S> supplier)	Creates a thread local variable.

Uses of Supplier in java.lang.module

Methods in java.lang.module with parameters of type Supplier

Modifier and Type	Method	Description
static ModuleDescriptor	ModuleDescriptor.read(InputStream in, Supplier<Set<String>> packageFinder)	Reads the binary form of a module declaration from an input stream as a module descriptor.
static ModuleDescriptor	ModuleDescriptor.read(ByteBuffer bb, Supplier<Set<String>> packageFinder)	Reads the binary form of a module declaration from a byte buffer as a module descriptor.

Uses of Supplier in java.net.http

Methods in java.net.http with parameters of type Supplier

Modifier and Type	Method	Description
static HttpRequest.BodyPublisher	HttpRequest.BodyPublishers.ofInputStream(Supplier<? extends InputStream> streamSupplier)	A request body publisher that reads its data from an InputStream.

Uses of Supplier in java.util

Subinterfaces of Supplier in java.util

Modifier and Type	Interface	Description
static interface	ServiceLoader.Provider<S>	Represents a service provider located by ServiceLoader.

Methods in java.util with parameters of type Supplier

Modifier and Type	Method	Description
Optional<T>	Optional.or(Supplier<? extends Optional<? extends T>> supplier)	If a value is present, returns an Optional describing the value, otherwise returns an Optional produced by the supplying function.
T	Optional.orElseGet(Supplier<? extends T> supplier)	If a value is present, returns the value, otherwise returns the result produced by the supplying function.
<X extends Throwable> T	Optional.orElseThrow(Supplier<? extends X> exceptionSupplier)	If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.
<X extends Throwable> double	OptionalDouble.orElseThrow(Supplier<? extends X> exceptionSupplier)	If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.
<X extends Throwable> int	OptionalInt.orElseThrow(Supplier<? extends X> exceptionSupplier)	If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.
<X extends Throwable> long	OptionalLong.orElseThrow(Supplier<? extends X> exceptionSupplier)	If a value is present, returns the value, otherwise throws an exception produced by the exception supplying function.
static <T> T	Objects.requireNonNull(T obj, Supplier<String> messageSupplier)	Checks that the specified object reference is not null and throws a customized NullPointerException if it is.
static <T> T	Objects.requireNonNullElseGet(T obj, Supplier<? extends T> supplier)	Returns the first argument if it is non-null and otherwise returns the non-null value of supplier.get().

Uses of Supplier in java.util.concurrent

Methods in java.util.concurrent with parameters of type Supplier

Modifier and Type	Method	Description
CompletableFuture<T>	CompletableFuture.completeAsync(Supplier<? extends T> supplier)	Completes this CompletableFuture with the result of the given Supplier function invoked from an asynchronous task using the default executor.
CompletableFuture<T>	CompletableFuture.completeAsync(Supplier<? extends T> supplier, Executor executor)	Completes this CompletableFuture with the result of the given Supplier function invoked from an asynchronous task using the given executor.
static <U> CompletableFuture<U>	CompletableFuture.supplyAsync(Supplier<U> supplier)	Returns a new CompletableFuture that is asynchronously completed by a task running in the ForkJoinPool.commonPool() with the value obtained by calling the given Supplier.
static <U> CompletableFuture<U>	CompletableFuture.supplyAsync(Supplier<U> supplier, Executor executor)	Returns a new CompletableFuture that is asynchronously completed by a task running in the given executor with the value obtained by calling the given Supplier.

Uses of Supplier in java.util.logging

Methods in java.util.logging with parameters of type Supplier

Modifier and Type	Method	Description
void	Logger.config(Supplier<String> msgSupplier)	Log a CONFIG message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.fine(Supplier<String> msgSupplier)	Log a FINE message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.finer(Supplier<String> msgSupplier)	Log a FINER message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.finest(Supplier<String> msgSupplier)	Log a FINEST message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.info(Supplier<String> msgSupplier)	Log a INFO message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.log(Level level, Throwable thrown, Supplier<String> msgSupplier)	Log a lazily constructed message, with associated Throwable information.
void	Logger.log(Level level, Supplier<String> msgSupplier)	Log a message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.logp(Level level, String sourceClass, String sourceMethod, Throwable thrown, Supplier<String> msgSupplier)	Log a lazily constructed message, specifying source class and method, with associated Throwable information.
void	Logger.logp(Level level, String sourceClass, String sourceMethod, Supplier<String> msgSupplier)	Log a lazily constructed message, specifying source class and method, with no arguments.
void	Logger.severe(Supplier<String> msgSupplier)	Log a SEVERE message, which is only to be constructed if the logging level is such that the message will actually be logged.
void	Logger.warning(Supplier<String> msgSupplier)	Log a WARNING message, which is only to be constructed if the logging level is such that the message will actually be logged.

Uses of Supplier in java.util.stream

Methods in java.util.stream that return Supplier

Modifier and Type	Method	Description
Supplier<A>	Collector.supplier()	A function that creates and returns a new mutable result container.

Methods in java.util.stream with parameters of type Supplier

Modifier and Type	Method	Description
<R> R	DoubleStream.collect(Supplier<R> supplier, ObjDoubleConsumer<R> accumulator, BiConsumer<R,R> combiner)	Performs a mutable reduction operation on the elements of this stream.
<R> R	IntStream.collect(Supplier<R> supplier, ObjIntConsumer<R> accumulator, BiConsumer<R,R> combiner)	Performs a mutable reduction operation on the elements of this stream.
<R> R	LongStream.collect(Supplier<R> supplier, ObjLongConsumer<R> accumulator, BiConsumer<R,R> combiner)	Performs a mutable reduction operation on the elements of this stream.
<R> R	Stream.collect(Supplier<R> supplier, BiConsumer<R,? super T> accumulator, BiConsumer<R,R> combiner)	Performs a mutable reduction operation on the elements of this stream.
static DoubleStream	StreamSupport.doubleStream(Supplier<? extends Spliterator.OfDouble> supplier, int characteristics, boolean parallel)	Creates a new sequential or parallel DoubleStream from a Supplier of Spliterator.OfDouble.
static <T> Stream<T>	Stream.generate(Supplier<? extends T> s)	Returns an infinite sequential unordered stream where each element is generated by the provided Supplier.
static <T, K, D, A, M extends Map<K, D>> Collector<T,?,M>	Collectors.groupingBy(Function<? super T,? extends K> classifier, Supplier<M> mapFactory, Collector<? super T,A,D> downstream)	Returns a Collector implementing a cascaded "group by" operation on input elements of type T, grouping elements according to a classification function, and then performing a reduction operation on the values associated with a given key using the specified downstream Collector.
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 concurrent Collector implementing a cascaded "group by" operation on input elements of type T, grouping elements according to a classification function, and then performing a reduction operation on the values associated with a given key using the specified downstream Collector.
static IntStream	StreamSupport.intStream(Supplier<? extends Spliterator.OfInt> supplier, int characteristics, boolean parallel)	Creates a new sequential or parallel IntStream from a Supplier of Spliterator.OfInt.
static LongStream	StreamSupport.longStream(Supplier<? extends Spliterator.OfLong> supplier, int characteristics, boolean parallel)	Creates a new sequential or parallel LongStream from a Supplier of Spliterator.OfLong.
static <T, A, R> Collector<T,A,R>	Collector.of(Supplier<A> supplier, BiConsumer<A,T> accumulator, BinaryOperator<A> combiner, Function<A,R> finisher, Collector.Characteristics... characteristics)	Returns a new Collector described by the given supplier, accumulator, combiner, and finisher functions.
static <T, R> Collector<T,R,R>	Collector.of(Supplier<R> supplier, BiConsumer<R,T> accumulator, BinaryOperator<R> combiner, Collector.Characteristics... characteristics)	Returns a new Collector described by the given supplier, accumulator, and combiner functions.
static <T> Stream<T>	StreamSupport.stream(Supplier<? extends Spliterator<T>> supplier, int characteristics, boolean parallel)	Creates a new sequential or parallel Stream from a Supplier of Spliterator.
static <T, C extends Collection<T>> Collector<T,?,C>	Collectors.toCollection(Supplier<C> collectionFactory)	Returns a Collector that accumulates the input elements into a new Collection, in encounter order.
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> mapFactory)	Returns a concurrent Collector that accumulates elements into a ConcurrentMap whose keys and values are the result of applying the provided mapping functions to the input elements.
static <T, K, U, M extends Map<K, U>> Collector<T,?,M>	Collectors.toMap(Function<? super T,? extends K> keyMapper, Function<? super T,? extends U> valueMapper, BinaryOperator<U> mergeFunction, Supplier<M> mapFactory)	Returns a Collector that accumulates elements into a Map whose keys and values are the result of applying the provided mapping functions to the input elements.

Uses of Supplier in jdk.dynalink.linker

Classes in jdk.dynalink.linker that implement Supplier

Modifier and Type	Class	Description
class	GuardingDynamicLinkerExporter	A class acting as a supplier of guarding dynamic linkers that can be automatically loaded by other language runtimes.

Methods in jdk.dynalink.linker with parameters of type Supplier

Modifier and Type	Method	Description
GuardedInvocation	GuardingTypeConverterFactory.convertToType(Class<?> sourceType, Class<?> targetType, Supplier<MethodHandles.Lookup> lookupSupplier)	Returns a guarded type conversion that receives a value of the specified source type and returns a value converted to the specified target type.
<T> T	LinkerServices.getWithLookup(Supplier<T> operation, SecureLookupSupplier lookupSupplier)	Executes an operation within the context of a particular MethodHandles.Lookup lookup object.

Uses of Supplier in jdk.jshell

Methods in jdk.jshell with parameters of type Supplier

Modifier and Type	Method	Description
JShell.Builder	JShell.Builder.tempVariableNameGenerator(Supplier<String> generator)	Sets a generator of temp variable names for VarSnippet of Snippet.SubKind.TEMP_VAR_EXPRESSION_SUBKIND.