Package org.springframework.messaging.support

@NullMarked package org.springframework.messaging.support

Provides implementations of Message along with a MessageBuilder and MessageHeaderAccessor for building and working with messages and message headers, as well as various MessageChannel implementations and channel interceptor support.

Related Packages

Package	Description
org.springframework.messaging	Support for working with messaging APIs and protocols.

Class	Description
AbstractHeaderMapper<T>	A base HeaderMapper implementation.
AbstractMessageChannel	Abstract base class for MessageChannel implementations.
AbstractSubscribableChannel	Abstract base class for SubscribableChannel implementations.
ChannelInterceptor	Interface for interceptors that are able to view and/or modify the Messages being sent-to and/or received-from a MessageChannel.
ErrorMessage	A GenericMessage with a Throwable payload.
ExecutorChannelInterceptor	An extension of ChannelInterceptor with callbacks to intercept the asynchronous sending of a Message to a specific subscriber through an Executor.
ExecutorSubscribableChannel	A SubscribableChannel that sends messages to each of its subscribers.
GenericMessage<T>	An implementation of Message with a generic payload.
HeaderMapper<T>	Generic strategy interface for mapping MessageHeaders to and from other types of objects.
IdTimestampMessageHeaderInitializer	A MessageHeaderInitializer to customize the strategy for ID and TIMESTAMP message header generation.
ImmutableMessageChannelInterceptor	A simpler interceptor that calls MessageHeaderAccessor.setImmutable() on the headers of messages passed through the preSend method.
InterceptableChannel	A MessageChannel that maintains a list ChannelInterceptors and allows interception of message sending.
MessageBuilder<T>	A builder for creating a GenericMessage (or ErrorMessage if the payload is of type Throwable).
MessageHandlingRunnable	Extension of the Runnable interface with methods to obtain the MessageHandler and Message to be handled.
MessageHeaderAccessor	Wrapper around MessageHeaders that provides extra features such as strongly typed accessors for specific headers, the ability to leave headers in a Message mutable, and the option to suppress automatic generation of id and timestamp headers.
MessageHeaderInitializer	Callback interface for initializing a MessageHeaderAccessor.
NativeMessageHeaderAccessor	MessageHeaderAccessor subclass that supports storage and access of headers from an external source such as a message broker.