Uses of Interface
java.util.function.Consumer

Packages that use Consumer

Package	Description
com.sun.net.httpserver	Provides a simple high-level Http server API, which can be used to build embedded HTTP servers.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.lang.classfile	Provides classfile parsing, generation, and transformation library.
java.lang.classfile.attribute	Provides interfaces describing classfile attributes for the java.lang.classfilePREVIEW library.
java.lang.classfile.components	Provides specific components, transformations, and tools built on top of the java.lang.classfilePREVIEW library.
java.lang.foreign	Provides low-level access to memory and functions outside the Java runtime.
java.net.http	HTTP Client and WebSocket APIs
java.nio.channels	Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
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.stream	Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
jdk.jfr.consumer	This package contains classes for consuming Flight Recorder data.
jdk.jshell	Provides interfaces for creating tools, such as a Read-Eval-Print Loop (REPL), which interactively evaluate "snippets" of Java programming language code.
jdk.jshell.execution	Provides implementation support for building JShell execution engines.
jdk.management.jfr	This package contains classes to control and monitor Flight Recorder over Java Management Extensions (JMX).

Uses of Consumer in com.sun.net.httpserver

Methods in com.sun.net.httpserver with parameters of type Consumer

Modifier and Type	Method	Description
static Filter	Filter.afterHandler(String description, Consumer<HttpExchange> operation)	Returns a post-processing Filter with the given description and operation.
static Filter	Filter.beforeHandler(String description, Consumer<HttpExchange> operation)	Returns a pre-processing Filter with the given description and operation.

Uses of Consumer in java.lang

Methods in java.lang with parameters of type Consumer

Modifier and Type	Method	Description
default void	Iterable.forEach(Consumer<? super T> action)	Performs the given action for each element of the Iterable until all elements have been processed or the action throws an exception.
void	StackWalker.forEach(Consumer<? super StackWalker.StackFrame> action)	Performs the given action on each element of StackFrame stream of the current thread, traversing from the top frame of the stack, which is the method calling this forEach method.

Uses of Consumer in java.lang.classfile^PREVIEW

Subinterfaces of Consumer in java.lang.classfile^PREVIEW

Modifier and Type	Interface	Description
interface	ClassBuilderPREVIEW	Preview. A builder for classfiles.
interface	ClassFileBuilderPREVIEW<E extends ClassFileElementPREVIEW,B extends ClassFileBuilderPREVIEW<E,B>>	Preview. A builder for a classfile or portion of a classfile.
interface	CodeBuilderPREVIEW	Preview. A builder for code attributes (method bodies).
static interface	CodeBuilder.BlockCodeBuilderPREVIEW	Preview. A builder for blocks of code.
interface	FieldBuilderPREVIEW	Preview. A builder for fields.
interface	MethodBuilderPREVIEW	Preview. A builder for methods.

Methods in java.lang.classfile^PREVIEW with parameters of type Consumer

Modifier and Type	Method	Description
default CodeBuilderPREVIEW	CodeBuilder.block(Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> handler)	Add a lexical block to the method being built.
byte[]	ClassFile.build(ClassEntryPREVIEW thisClassEntry, ConstantPoolBuilderPREVIEW constantPool, Consumer<? super ClassBuilderPREVIEW> handler)	Build a classfile into a byte array using the provided constant pool builder.
default byte[]	ClassFile.build(ClassDesc thisClass, Consumer<? super ClassBuilderPREVIEW> handler)	Build a classfile into a byte array.
default byte[]	ClassFile.buildModule(ModuleAttributePREVIEW moduleAttribute, Consumer<? super ClassBuilderPREVIEW> handler)	Build a module descriptor into a byte array.
default void	ClassFile.buildModuleTo(Path path, ModuleAttributePREVIEW moduleAttribute, Consumer<? super ClassBuilderPREVIEW> handler)	Build a module descriptor into a file.
default void	ClassFile.buildTo(Path path, ClassEntryPREVIEW thisClassEntry, ConstantPoolBuilderPREVIEW constantPool, Consumer<? super ClassBuilderPREVIEW> handler)	Build a classfile into a file using the provided constant pool builder.
default void	ClassFile.buildTo(Path path, ClassDesc thisClass, Consumer<ClassBuilderPREVIEW> handler)	Build a classfile into a file.
CodeBuilder.CatchBuilderPREVIEW	CodeBuilder.CatchBuilder.catching(ClassDesc exceptionType, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> catchHandler)	Adds a catch block that catches an exception of the given type.
void	CodeBuilder.CatchBuilder.catchingAll(Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> catchAllHandler)	Adds a "catch" block that catches all exceptions.
CodeBuilder.CatchBuilderPREVIEW	CodeBuilder.CatchBuilder.catchingMulti(List<ClassDesc> exceptionTypes, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> catchHandler)	Adds a catch block that catches exceptions of the given types.
static ClassTransformPREVIEW	ClassTransform.endHandler(Consumer<ClassBuilderPREVIEW> finisher)	Create a class transform that passes each element through to the builder, and calls the specified function when transformation is complete.
static CodeTransformPREVIEW	CodeTransform.endHandler(Consumer<CodeBuilderPREVIEW> finisher)	Create a code transform that passes each element through to the builder, and calls the specified function when transformation is complete.
static FieldTransformPREVIEW	FieldTransform.endHandler(Consumer<FieldBuilderPREVIEW> finisher)	Create a field transform that passes each element through to the builder, and calls the specified function when transformation is complete.
static MethodTransformPREVIEW	MethodTransform.endHandler(Consumer<MethodBuilderPREVIEW> finisher)	Create a method transform that passes each element through to the builder, and calls the specified function when transformation is complete.
void	CompoundElement.forEach(Consumer<? super E> consumer)	Invoke the provided handler with each element contained in this compound element
default CodeBuilderPREVIEW	CodeBuilder.ifThen(OpcodePREVIEW opcode, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> thenHandler)	Add an "if-then" block that is conditional on the value(s) on top of the operand stack in accordance with the given opcode.
default CodeBuilderPREVIEW	CodeBuilder.ifThen(Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> thenHandler)	Add an "if-then" block that is conditional on the boolean value on top of the operand stack.
default CodeBuilderPREVIEW	CodeBuilder.ifThenElse(OpcodePREVIEW opcode, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> thenHandler, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> elseHandler)	Add an "if-then-else" block that is conditional on the value(s) on top of the operand stack in accordance with the given opcode.
default CodeBuilderPREVIEW	CodeBuilder.ifThenElse(Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> thenHandler, Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> elseHandler)	Add an "if-then-else" block that is conditional on the boolean value on top of the operand stack.
default CodeBuilderPREVIEW	CodeBuilder.transforming(CodeTransformPREVIEW transform, Consumer<CodeBuilderPREVIEW> handler)	Apply a transform to the code built by a handler, directing results to this builder.
default CodeBuilderPREVIEW	CodeBuilder.trying(Consumer<CodeBuilder.BlockCodeBuilderPREVIEW> tryHandler, Consumer<CodeBuilder.CatchBuilderPREVIEW> catchesHandler)	Adds a "try-catch" block comprising one try block and zero or more catch blocks.
MethodBuilderPREVIEW	MethodBuilder.withCode(Consumer<? super CodeBuilderPREVIEW> code)	Build the method body for this method.
ClassBuilderPREVIEW	ClassBuilder.withField(Utf8EntryPREVIEW name, Utf8EntryPREVIEW descriptor, Consumer<? super FieldBuilderPREVIEW> handler)	Adds a field.
default ClassBuilderPREVIEW	ClassBuilder.withField(String name, ClassDesc descriptor, Consumer<? super FieldBuilderPREVIEW> handler)	Adds a field.
ClassBuilderPREVIEW	ClassBuilder.withMethod(Utf8EntryPREVIEW name, Utf8EntryPREVIEW descriptor, int methodFlags, Consumer<? super MethodBuilderPREVIEW> handler)	Adds a method.
default ClassBuilderPREVIEW	ClassBuilder.withMethod(String name, MethodTypeDesc descriptor, int methodFlags, Consumer<? super MethodBuilderPREVIEW> handler)	Adds a method.
default ClassBuilderPREVIEW	ClassBuilder.withMethodBody(Utf8EntryPREVIEW name, Utf8EntryPREVIEW descriptor, int methodFlags, Consumer<? super CodeBuilderPREVIEW> handler)	Adds a method, with only a Code attribute.
default ClassBuilderPREVIEW	ClassBuilder.withMethodBody(String name, MethodTypeDesc descriptor, int methodFlags, Consumer<? super CodeBuilderPREVIEW> handler)	Adds a method, with only a CodeAttributePREVIEW.

Uses of Consumer in java.lang.classfile.attribute^PREVIEW

Methods in java.lang.classfile.attribute^PREVIEW with parameters of type Consumer

Modifier and Type	Method	Description
static ModuleAttributePREVIEW	ModuleAttribute.of(ModuleEntryPREVIEW moduleName, Consumer<ModuleAttribute.ModuleAttributeBuilderPREVIEW> attrHandler)	Returns a Module attribute.
static ModuleAttributePREVIEW	ModuleAttribute.of(ModuleDesc moduleName, Consumer<ModuleAttribute.ModuleAttributeBuilderPREVIEW> attrHandler)	Returns a Module attribute.

Uses of Consumer in java.lang.classfile.components^PREVIEW

Methods in java.lang.classfile.components^PREVIEW with parameters of type Consumer

Modifier and Type	Method	Description
default void	ClassPrinter.Node.toJson(Consumer<String> out)	Prints the node and its sub-tree into JSON format.
static void	ClassPrinter.toJson(CompoundElementPREVIEW<?> model, ClassPrinter.VerbosityPREVIEW verbosity, Consumer<String> out)	Prints provided model as structured text in JSON format.
default void	ClassPrinter.Node.toXml(Consumer<String> out)	Prints the node and its sub-tree into XML format.
static void	ClassPrinter.toXml(CompoundElementPREVIEW<?> model, ClassPrinter.VerbosityPREVIEW verbosity, Consumer<String> out)	Prints provided model as structured text in XML format.
default void	ClassPrinter.Node.toYaml(Consumer<String> out)	Prints the node and its sub-tree into YAML format.
static void	ClassPrinter.toYaml(CompoundElementPREVIEW<?> model, ClassPrinter.VerbosityPREVIEW verbosity, Consumer<String> out)	Prints provided model as structured text in YAML format.

Uses of Consumer in java.lang.foreign

Methods in java.lang.foreign with parameters of type Consumer

Modifier and Type	Method	Description
MemorySegment	MemorySegment.reinterpret(long newSize, Arena arena, Consumer<MemorySegment> cleanup)	Restricted. Returns a new segment with the same address as this segment, but with the provided size and scope.
MemorySegment	MemorySegment.reinterpret(Arena arena, Consumer<MemorySegment> cleanup)	Restricted. Returns a new memory segment with the same address and size as this segment, but with the provided scope.

Uses of Consumer in java.net.http

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

Modifier and Type	Method	Description
static HttpResponse.BodyHandler<Void>	HttpResponse.BodyHandlers.ofByteArrayConsumer(Consumer<Optional<byte[]>> consumer)	Returns a BodyHandler<Void> that returns a BodySubscriber<Void> obtained from BodySubscribers.ofByteArrayConsumer(Consumer).
static HttpResponse.BodySubscriber<Void>	HttpResponse.BodySubscribers.ofByteArrayConsumer(Consumer<Optional<byte[]>> consumer)	Returns a BodySubscriber which provides the incoming body data to the provided Consumer of Optional<byte[]>.

Uses of Consumer in java.nio.channels

Methods in java.nio.channels with parameters of type Consumer

Modifier and Type	Method	Description
int	Selector.select(Consumer<SelectionKey> action)	Selects and performs an action on the keys whose corresponding channels are ready for I/O operations.
int	Selector.select(Consumer<SelectionKey> action, long timeout)	Selects and performs an action on the keys whose corresponding channels are ready for I/O operations.
int	Selector.selectNow(Consumer<SelectionKey> action)	Selects and performs an action on the keys whose corresponding channels are ready for I/O operations.

Uses of Consumer in java.util

Methods in java.util with parameters of type Consumer

Modifier and Type	Method	Description
void	ArrayDeque.forEach(Consumer<? super E> action)
void	ArrayList.forEach(Consumer<? super E> action)
void	PriorityQueue.forEach(Consumer<? super E> action)
void	Vector.forEach(Consumer<? super E> action)
default void	Iterator.forEachRemaining(Consumer<? super E> action)	Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
default void	PrimitiveIterator.OfDouble.forEachRemaining(Consumer<? super Double> action)	Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
default void	PrimitiveIterator.OfInt.forEachRemaining(Consumer<? super Integer> action)	Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
default void	PrimitiveIterator.OfLong.forEachRemaining(Consumer<? super Long> action)	Performs the given action for each remaining element until all elements have been processed or the action throws an exception.
default void	Spliterator.forEachRemaining(Consumer<? super T> action)	Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
default void	Spliterator.OfDouble.forEachRemaining(Consumer<? super Double> action)	Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
default void	Spliterator.OfInt.forEachRemaining(Consumer<? super Integer> action)	Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
default void	Spliterator.OfLong.forEachRemaining(Consumer<? super Long> action)	Performs the given action for each remaining element, sequentially in the current thread, until all elements have been processed or the action throws an exception.
void	Optional.ifPresent(Consumer<? super T> action)	If a value is present, performs the given action with the value, otherwise does nothing.
void	Optional.ifPresentOrElse(Consumer<? super T> action, Runnable emptyAction)	If a value is present, performs the given action with the value, otherwise performs the given empty-based action.
default boolean	Spliterator.OfDouble.tryAdvance(Consumer<? super Double> action)	If a remaining element exists: performs the given action on it, returning true; else returns false.
default boolean	Spliterator.OfInt.tryAdvance(Consumer<? super Integer> action)	If a remaining element exists: performs the given action on it, returning true; else returns false.
default boolean	Spliterator.OfLong.tryAdvance(Consumer<? super Long> action)	If a remaining element exists: performs the given action on it, returning true; else returns false.
boolean	Spliterator.tryAdvance(Consumer<? super T> action)	If a remaining element exists: performs the given action on it, returning true; else returns false.

Uses of Consumer in java.util.concurrent

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

Modifier and Type	Method	Description
CompletableFuture<Void>	CompletableFuture.acceptEither(CompletionStage<? extends T> other, Consumer<? super T> action)
CompletionStage<Void>	CompletionStage.acceptEither(CompletionStage<? extends T> other, Consumer<? super T> action)	Returns a new CompletionStage that, when either this or the other given stage complete normally, is executed with the corresponding result as argument to the supplied action.
CompletableFuture<Void>	CompletableFuture.acceptEitherAsync(CompletionStage<? extends T> other, Consumer<? super T> action)
CompletableFuture<Void>	CompletableFuture.acceptEitherAsync(CompletionStage<? extends T> other, Consumer<? super T> action, Executor executor)
CompletionStage<Void>	CompletionStage.acceptEitherAsync(CompletionStage<? extends T> other, Consumer<? super T> action)	Returns a new CompletionStage that, when either this or the other given stage complete normally, is executed using this stage's default asynchronous execution facility, with the corresponding result as argument to the supplied action.
CompletionStage<Void>	CompletionStage.acceptEitherAsync(CompletionStage<? extends T> other, Consumer<? super T> action, Executor executor)	Returns a new CompletionStage that, when either this or the other given stage complete normally, is executed using the supplied executor, with the corresponding result as argument to the supplied action.
CompletableFuture<Void>	SubmissionPublisher.consume(Consumer<? super T> consumer)	Processes all published items using the given Consumer function.
void	ArrayBlockingQueue.forEach(Consumer<? super E> action)
<U> void	ConcurrentHashMap.forEach(long parallelismThreshold, BiFunction<? super K,? super V,? extends U> transformer, Consumer<? super U> action)	Performs the given action for each non-null transformation of each (key, value).
void	ConcurrentLinkedDeque.forEach(Consumer<? super E> action)
void	ConcurrentLinkedQueue.forEach(Consumer<? super E> action)
void	CopyOnWriteArrayList.forEach(Consumer<? super E> action)
void	CopyOnWriteArraySet.forEach(Consumer<? super E> action)
void	LinkedBlockingDeque.forEach(Consumer<? super E> action)
void	LinkedBlockingQueue.forEach(Consumer<? super E> action)
void	LinkedTransferQueue.forEach(Consumer<? super E> action)
void	PriorityBlockingQueue.forEach(Consumer<? super E> action)
void	ConcurrentHashMap.forEachEntry(long parallelismThreshold, Consumer<? super Map.Entry<K,V>> action)	Performs the given action for each entry.
<U> void	ConcurrentHashMap.forEachEntry(long parallelismThreshold, Function<Map.Entry<K,V>,? extends U> transformer, Consumer<? super U> action)	Performs the given action for each non-null transformation of each entry.
void	ConcurrentHashMap.forEachKey(long parallelismThreshold, Consumer<? super K> action)	Performs the given action for each key.
<U> void	ConcurrentHashMap.forEachKey(long parallelismThreshold, Function<? super K,? extends U> transformer, Consumer<? super U> action)	Performs the given action for each non-null transformation of each key.
void	ConcurrentHashMap.forEachValue(long parallelismThreshold, Consumer<? super V> action)	Performs the given action for each value.
<U> void	ConcurrentHashMap.forEachValue(long parallelismThreshold, Function<? super V,? extends U> transformer, Consumer<? super U> action)	Performs the given action for each non-null transformation of each value.
CompletableFuture<Void>	CompletableFuture.thenAccept(Consumer<? super T> action)
CompletionStage<Void>	CompletionStage.thenAccept(Consumer<? super T> action)	Returns a new CompletionStage that, when this stage completes normally, is executed with this stage's result as the argument to the supplied action.
CompletableFuture<Void>	CompletableFuture.thenAcceptAsync(Consumer<? super T> action)
CompletableFuture<Void>	CompletableFuture.thenAcceptAsync(Consumer<? super T> action, Executor executor)
CompletionStage<Void>	CompletionStage.thenAcceptAsync(Consumer<? super T> action)	Returns a new CompletionStage that, when this stage completes normally, is executed using this stage's default asynchronous execution facility, with this stage's result as the argument to the supplied action.
CompletionStage<Void>	CompletionStage.thenAcceptAsync(Consumer<? super T> action, Executor executor)	Returns a new CompletionStage that, when this stage completes normally, is executed using the supplied Executor, with this stage's result as the argument to the supplied action.

Uses of Consumer in java.util.function

Methods in java.util.function that return Consumer

Modifier and Type	Method	Description
default Consumer<T>	Consumer.andThen(Consumer<? super T> after)	Returns a composed Consumer that performs, in sequence, this operation followed by the after operation.

Methods in java.util.function with parameters of type Consumer

Modifier and Type	Method	Description
default Consumer<T>	Consumer.andThen(Consumer<? super T> after)	Returns a composed Consumer that performs, in sequence, this operation followed by the after operation.

Uses of Consumer in java.util.stream

Subinterfaces of Consumer in java.util.stream

Modifier and Type	Interface	Description
static interface	Stream.Builder<T>	A mutable builder for a Stream.

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

Modifier and Type	Method	Description
void	Stream.forEach(Consumer<? super T> action)	Performs an action for each element of this stream.
void	Stream.forEachOrdered(Consumer<? super T> action)	Performs an action for each element of this stream, in the encounter order of the stream if the stream has a defined encounter order.
Stream<T>	Stream.peek(Consumer<? super T> action)	Returns a stream consisting of the elements of this stream, additionally performing the provided action on each element as elements are consumed from the resulting stream.

Method parameters in java.util.stream with type arguments of type Consumer

Modifier and Type	Method	Description
default <R> Stream<R>	Stream.mapMulti(BiConsumer<? super T,? super Consumer<R>> mapper)	Returns a stream consisting of the results of replacing each element of this stream with multiple elements, specifically zero or more elements.

Uses of Consumer in jdk.jfr.consumer

Methods in jdk.jfr.consumer with parameters of type Consumer

Modifier and Type	Method	Description
void	EventStream.onError(Consumer<Throwable> action)	Registers an action to perform if an exception occurs.
void	RecordingStream.onError(Consumer<Throwable> action)
void	EventStream.onEvent(String eventName, Consumer<RecordedEvent> action)	Registers an action to perform on all events matching a name.
void	EventStream.onEvent(Consumer<RecordedEvent> action)	Registers an action to perform on all events in the stream.
void	RecordingStream.onEvent(String eventName, Consumer<RecordedEvent> action)
void	RecordingStream.onEvent(Consumer<RecordedEvent> action)
default void	EventStream.onMetadata(Consumer<MetadataEvent> action)	Registers an action to perform when new metadata arrives in the stream.

Uses of Consumer in jdk.jshell

Methods in jdk.jshell with parameters of type Consumer

Modifier and Type	Method	Description
JShell.Subscription	JShell.onShutdown(Consumer<JShell> listener)	Register a callback to be called when this JShell instance terminates.
JShell.Subscription	JShell.onSnippetEvent(Consumer<SnippetEvent> listener)	Register a callback to be called when the Status of a snippet changes.

Uses of Consumer in jdk.jshell.execution

Methods in jdk.jshell.execution with parameters of type Consumer

Modifier and Type	Method	Description
static void	Util.detectJdiExitEvent(VirtualMachine vm, Consumer<String> unbiddenExitHandler)	Monitor the JDI event stream for VMDeathEvent and VMDisconnectEvent.

Method parameters in jdk.jshell.execution with type arguments of type Consumer

Modifier and Type	Method	Description
static void	Util.forwardExecutionControlAndIO(ExecutionControl ec, InputStream inStream, OutputStream outStream, Map<String,Consumer<OutputStream>> outputStreamMap, Map<String,Consumer<InputStream>> inputStreamMap)	Forward commands from the input to the specified ExecutionControl instance, then responses back on the output.

Uses of Consumer in jdk.management.jfr

Methods in jdk.management.jfr with parameters of type Consumer

Modifier and Type	Method	Description
void	RemoteRecordingStream.onError(Consumer<Throwable> action)
void	RemoteRecordingStream.onEvent(String eventName, Consumer<RecordedEvent> action)
void	RemoteRecordingStream.onEvent(Consumer<RecordedEvent> action)