All Classes

Class	Description
AbstractConsumerSeekAware	Manages the ConsumerSeekAware.ConsumerSeekCallback s for the listener.
AbstractDelegatingMessageListenerAdapter<T>	Top level class for all listener adapters.
AbstractFilteringMessageListener<K,V,T>	An abstract message listener adapter that implements record filter logic via a RecordFilterStrategy.
AbstractJavaTypeMapper	Abstract type mapper.
AbstractKafkaBackOffManagerFactory	Base class for KafkaBackOffManagerFactory implementations.
AbstractKafkaHeaderMapper	Base for Kafka header mappers.
AbstractKafkaHeaderMapper.HeaderMatcher	A matcher for headers.
AbstractKafkaHeaderMapper.NeverMatchHeaderMatcher	A matcher that never matches a set of headers.
AbstractKafkaHeaderMapper.SimplePatternBasedHeaderMatcher	A pattern-based header matcher that matches if the specified header matches the specified simple pattern.
AbstractKafkaListenerContainerFactory<C extends AbstractMessageListenerContainer<K,V>,K,V>	Base KafkaListenerContainerFactory for Spring's base container implementation.
AbstractKafkaListenerEndpoint<K,V>	Base model for a Kafka listener endpoint.
AbstractMessageListenerContainer<K,V>	The base implementation for the MessageListenerContainer.
AbstractRetryingMessageListenerAdapter<K,V,T>	Base class for retrying message listener adapters.
ABSwitchCluster	A Supplier for bootstrap servers that can toggle between 2 lists of servers.
AcknowledgingConsumerAwareMessageListener<K,V>	Listener for handling incoming Kafka messages, propagating an acknowledgment handle that recipients can invoke when the message has been processed.
AcknowledgingMessageListener<K,V>	Listener for handling incoming Kafka messages, propagating an acknowledgment handle that recipients can invoke when the message has been processed.
Acknowledgment	Handle for acknowledging the processing of a ConsumerRecord.
AdapterUtils	Utilities for listener adapters.
AfterRollbackProcessor<K,V>	Invoked by a listener container with remaining, unprocessed, records (including the failed record).
AggregatingReplyingKafkaTemplate<K,V,R>	A replying template that aggregates multiple replies with the same correlation id.
AllowDenyCollectionManager<T>	Class for managing Allow / Deny collections and its predicates.
Application	Code snippets for request/reply messaging.
Application	Code snippet for quick start.
Application	Code snippet for quick start.
Application.Thing
BackOffHandler	Handler for the provided back off time, listener container and exception.
BackOffValuesGenerator	Generates the backoff values from the provided maxAttempts value and BackOffPolicy.
BatchAcknowledgingConsumerAwareMessageListener<K,V>	Listener for handling a batch of incoming Kafka messages, propagating an acknowledgment handle that recipients can invoke when the message has been processed.
BatchAcknowledgingMessageListener<K,V>	Listener for handling a batch of incoming Kafka messages, propagating an acknowledgment handle that recipients can invoke when the message has been processed.
BatchConsumerAwareMessageListener<K,V>	Listener for handling a batch of incoming Kafka messages; the list is created from the consumer records object returned by a poll.
BatchErrorHandler	Handles errors thrown during the execution of a BatchMessageListener.
BatchInterceptor<K,V>	An interceptor for batches of records.
BatchListenerFailedException	An exception thrown by user code to inform the framework which record in a batch has failed.
BatchMessageConverter	A Kafka-specific Message converter strategy.
BatchMessageListener<K,V>	Listener for handling a batch of incoming Kafka messages; the list is created from the consumer records object returned by a poll.
BatchMessagingMessageConverter	A Messaging MessageConverter implementation used with a batch message listener; the consumer record values are extracted into a collection in the message payload.
BatchMessagingMessageListenerAdapter<K,V>	A MessageListener adapter that invokes a configurable HandlerAdapter; used when the factory is configured for the listener to receive batches of messages.
BatchToRecordAdapter<K,V>	An adapter that adapts a batch listener to a record listener method.
BatchToRecordAdapter.Callback<K,V>	A callback for each message.
BrokerAddress	Encapsulates the address of a Kafka broker.
ByteArrayJsonMessageConverter	JSON Message converter - byte[] on output, String, Bytes, or byte[] on input.
BytesJsonMessageConverter	JSON Message converter - Bytes on output, String, Bytes, or byte[] on input.
ChainedKafkaTransactionManager<K,V>	Deprecated. Refer to the ChainedTransactionManager javadocs.
ClassMapper	Strategy for setting metadata on messages such that one can create the class that needs to be instantiated when receiving a message.
CleanupConfig	Specifies time of KafkaStreams.cleanUp() execution.
CommonContainerStoppingErrorHandler	A CommonErrorHandler that stops the container when an error occurs.
CommonDelegatingErrorHandler	An error handler that delegates to different error handlers, depending on the exception type.
CommonErrorHandler	Replacement for ErrorHandler and BatchErrorHandler and their sub-interfaces.
CommonLoggingErrorHandler	The CommonErrorHandler implementation for logging exceptions.
CommonMixedErrorHandler	A CommonErrorHandler that delegates to different CommonErrorHandlers for record and batch listeners.
CompositeBatchInterceptor<K,V>	A BatchInterceptor that delegates to one or more BatchInterceptors in order.
CompositeKafkaStreamsCustomizer	Composite KafkaStreamsCustomizer customizes KafkaStreams by delegating to a list of provided KafkaStreamsCustomizer.
CompositeKafkaStreamsInfrastructureCustomizer	Composite KafkaStreamsInfrastructureCustomizer customizes KafkaStreams by delegating to a list of provided KafkaStreamsInfrastructureCustomizer.
CompositeProducerListener<K,V>	A ProducerListener that delegates to a collection of listeners.
CompositeRecordInterceptor<K,V>	A RecordInterceptor that delegates to one or more RecordInterceptors in order.
ConcurrentKafkaListenerContainerFactory<K,V>	A KafkaListenerContainerFactory implementation to build a ConcurrentMessageListenerContainer.
ConcurrentMessageListenerContainer<K,V>	Creates 1 or more KafkaMessageListenerContainers based on concurrency.
Config	Code snippet for quick start.
Config	Snippet for Configuring Topics section.
ConsumerAwareBatchErrorHandler	An error handler that has access to the consumer, for example to adjust offsets after an error.
ConsumerAwareErrorHandler	An error handler that has access to the consumer, for example to adjust offsets after an error.
ConsumerAwareListenerErrorHandler	An error handler that has access to the consumer.
ConsumerAwareMessageListener<K,V>	Listener for handling individual incoming Kafka messages.
ConsumerAwareRebalanceListener	A rebalance listener that provides access to the consumer object.
ConsumerAwareRecordInterceptor<K,V>	A RecordInterceptor that has access to the Consumer.
ConsumerAwareRecordRecoverer	A ConsumerRecordRecoverer that supports getting a reference to the Consumer.
ConsumerFactory<K,V>	The strategy to produce a Consumer instance(s).
ConsumerFactory.Listener<K,V>	Called whenever a consumer is added or removed.
ConsumerFailedToStartEvent	An event published when a consumer fails to start.
ConsumerPartitionPausedEvent	An event published when a consumer partition is paused.
ConsumerPartitionResumedEvent	An event published when a consumer partition is resumed.
ConsumerPausedEvent	An event published when a consumer is paused.
ConsumerPostProcessor<K,V>	Called by consumer factories to perform post processing on newly created consumers.
ConsumerProperties	Common consumer properties.
ConsumerRecordMetadata	Used to provide a listener method argument when the user supplies such a parameter.
ConsumerRecordRecoverer	A BiConsumer extension for recovering consumer records.
ConsumerResumedEvent	An event published when a consumer is resumed.
ConsumerSeekAware	Listeners that implement this interface are provided with a ConsumerSeekAware.ConsumerSeekCallback which can be used to perform a seek operation.
ConsumerSeekAware.ConsumerSeekCallback	A callback that a listener can invoke to seek to a specific offset.
ConsumerStartedEvent	An event published when a consumer has started.
ConsumerStartingEvent	An event published when a consumer is initializing.
ConsumerStoppedEvent	An event published when a consumer is stopped.
ConsumerStoppedEvent.Reason	Reasons for stopping a consumer.
ConsumerStoppingEvent	An event published when a consumer is stopped.
ContainerAwareBatchErrorHandler	An error handler that has access to the batch of records from the last poll the consumer, and the container.
ContainerAwareErrorHandler	An error handler that has access to the unprocessed records from the last poll (including the failed record), the consumer, and the container.
ContainerCustomizer<K,V,C extends AbstractMessageListenerContainer<K,V>>	Called by the container factory after the container is created and configured.
ContainerGroup	A group of listener containers.
ContainerGroupSequencer	Sequence the starting of container groups when all containers in the previous group are idle.
ContainerPartitionPausingBackOffManager	A manager that backs off consumption for a given topic if the timestamp provided is not due.
ContainerPartitionPausingBackOffManagerFactory	A factory for ContainerPartitionPausingBackOffManager.
ContainerPausingBackOffHandler	A BackOffHandler that pauses the container for the backoff.
ContainerProperties	Contains runtime properties for a listener container.
ContainerProperties.AckMode	The offset commit behavior enumeration.
ContainerProperties.AssignmentCommitOption	Offset commit behavior during assignment.
ContainerProperties.EOSMode	Mode for exactly once semantics.
ContainerStoppedEvent	An event published when a container is stopped.
ContainerTestUtils	Utilities for testing listener containers.
ConversionException	Exception for conversions.
CorrelationKey	Wrapper for byte[] that can be used as a hash key.
DeadLetterPublishingRecoverer	A ConsumerRecordRecoverer that publishes a failed record to a dead-letter topic.
DeadLetterPublishingRecoverer.ExceptionHeadersCreator	Use this to provide a custom implementation to take complete control over exception header creation for the output record.
DeadLetterPublishingRecoverer.HeaderNames	Container class for the name of the headers that will be added to the produced record.
DeadLetterPublishingRecoverer.HeaderNames.Builder	Provides a convenient API for creating DeadLetterPublishingRecoverer.HeaderNames.
DeadLetterPublishingRecoverer.HeaderNames.ExceptionInfo	Header names for exception headers.
DeadLetterPublishingRecoverer.HeaderNames.HeadersToAdd	Bits representing which headers to add.
DeadLetterPublishingRecoverer.HeaderNames.Original	Header names for original record property headers.
DeadLetterPublishingRecovererFactory	Creates and configures the DeadLetterPublishingRecoverer that will be used to forward the messages using the DestinationTopicResolver.
DefaultAfterRollbackProcessor<K,V>	Default implementation of AfterRollbackProcessor.
DefaultBackOffHandler	Default BackOffHandler; suspends the thread for the back off.
DefaultBatchToRecordAdapter<K,V>	The default BatchToRecordAdapter implementation; if the supplied recoverer throws an exception, the batch will be aborted; otherwise the next record will be processed.
DefaultDestinationTopicProcessor	Default implementation of the DestinationTopicProcessor interface.
DefaultDestinationTopicResolver	Default implementation of the DestinationTopicResolver interface.
DefaultDestinationTopicResolver.DestinationTopicHolder
DefaultErrorHandler	An error handler that, for record listeners, seeks to the current offset for each topic in the remaining records.
DefaultJackson2JavaTypeMapper	Jackson 2 type mapper.
DefaultKafkaConsumerFactory<K,V>	The ConsumerFactory implementation to produce new Consumer instances for provided Map configs and optional Deserializers on each ConsumerFactory.createConsumer() invocation.
DefaultKafkaHeaderMapper	Default header mapper for Apache Kafka.
DefaultKafkaHeaderMapper.NonTrustedHeaderType	Represents a header that could not be decoded due to an untrusted type.
DefaultKafkaProducerFactory<K,V>	The ProducerFactory implementation for a singleton shared Producer instance.
DefaultKafkaProducerFactory.CloseSafeProducer<K,V>	A wrapper class for the delegate.
DelegatingByTopicDeserializer	A Deserializer that delegates to other deserializers based on the topic name.
DelegatingByTopicSerialization<T extends java.io.Closeable>	Base class with common code for delegating by topic serialization.
DelegatingByTopicSerializer	A Serializer that delegates to other serializers based on a topic pattern.
DelegatingByTypeSerializer	Delegates to a serializer based on type.
DelegatingDeserializer	A Deserializer that delegates to other deserializers based on a serialization selector header.
DelegatingInvocableHandler	Delegates to an InvocableHandlerMethod based on the message payload type.
DelegatingMessageListener<T>	Classes implementing this interface allow containers to determine the type of the ultimate listener.
DelegatingSerializer	A Serializer that delegates to other serializers based on a serialization selector header.
DeliveryAttemptAware	A component implementing this interface can provide the next delivery attempt.
DeserializationException	Exception returned in the consumer record value or key when a deserialization failure occurs.
DestinationTopic	Representation of a Destination Topic to which messages can be forwarded, such as retry topics and dlt.
DestinationTopic.Properties
DestinationTopicContainer	Provides methods to store and retrieve DestinationTopic instances.
DestinationTopicProcessor	The DestinationTopicProcessor creates and registers the DestinationTopic instances in the provided DestinationTopicProcessor.Context, also providing callback interfaces to be called upon the context properties.
DestinationTopicProcessor.Context
DestinationTopicPropertiesFactory	Creates a list of DestinationTopic.Properties based on the provided configurations.
DestinationTopicPropertiesFactory.DestinationTopicSuffixes
DestinationTopicResolver	Provides methods for resolving the destination to which a message that failed to be processed should be forwarded to.
DltHandler	Annotation to determine the method the should process the DLT topic message.
DltStrategy	Strategies for handling DLT processing.
EmbeddedKafka	Annotation that can be specified on a test class that runs Spring for Apache Kafka based tests.
EmbeddedKafkaBroker	An embedded Kafka Broker(s) and Zookeeper manager.
EmbeddedKafkaBroker.EmbeddedZookeeper	Ported from scala to allow setting the port.
EmbeddedKafkaCondition	JUnit5 condition for an embedded broker.
EmbeddedKafkaRule	A TestRule wrapper around an EmbeddedKafkaBroker.
EnableKafka	Enable Kafka listener annotated endpoints that are created under the covers by a AbstractListenerContainerFactory.
EnableKafkaRetryTopic	Enables the non-blocking topic-based delayed retries feature.
EnableKafkaStreams	Enable default Kafka Streams components.
EndpointCustomizer	Customizes main, retry and DLT endpoints in the Retry Topic functionality and returns the resulting topic names.
EndpointCustomizer.TopicNamesHolder
EndpointCustomizerFactory	Creates the EndpointCustomizer that will be used by the RetryTopicConfigurer to customize the main, retry and DLT endpoints.
EndpointHandlerMethod	Handler method for retrying endpoints.
ErrorHandler	Handles errors thrown during the execution of a MessageListener.
ErrorHandlingDeserializer<T>	Delegating key/value deserializer that catches exceptions, returning them in the headers as serialized java objects.
ErrorHandlingUtils	Utilities for error handling.
ExceptionClassifier	Supports exception classification.
ExponentialBackOffWithMaxRetries	Subclass of ExponentialBackOff that allows the specification of the maximum number of retries rather than the maximum elapsed time.
FailedBatchProcessor	Subclass of FailedRecordProcessor that can process (and recover) a batch.
FailedDeserializationInfo	Class containing all the contextual information around a deserialization error.
FailedRecordProcessor	Common super class for classes that deal with failing to consume a consumer record.
FilteringBatchMessageListenerAdapter<K,V>	A BatchMessageListener adapter that implements filter logic via a RecordFilterStrategy.
FilteringMessageListenerAdapter<K,V>	A MessageListener adapter that implements filter logic via a RecordFilterStrategy.
FixedDelayStrategy	Defines the topic strategy to handle fixed delays.
GenericErrorHandler<T>	A generic error handler.
GenericMessageListener<T>	Top level interface for listeners.
GenericMessageListenerContainer<K,V>	Generic message listener container; adds parameters.
HandlerAdapter	A wrapper for either an InvocableHandlerMethod or DelegatingInvocableHandler.
HeaderEnricher<K,V>	Manipulate the headers.
HeaderEnricher.Container<K,V>	Container object for SpEL evaluation.
InvocationResult	The result of a method invocation.
Jackson2JavaTypeMapper	Strategy for setting metadata on messages such that one can create the class that needs to be instantiated when receiving a message.
Jackson2JavaTypeMapper.TypePrecedence	The precedence for type conversion - inferred from the method parameter or message headers.
JacksonMimeTypeModule	A SimpleModule extension for MimeType serialization.
JacksonPresent	The utility to check if Jackson JSON processor is present in the classpath.
JacksonUtils	The utilities for Jackson ObjectMapper instances.
JavaUtils	Chained utility methods to simplify some Java repetitive code.
JsonDeserializer<T>	Generic Deserializer for receiving JSON from Kafka and return Java objects.
JsonMessageConverter	Base class for JSON message converters; on the consumer side, it can handle byte[], Bytes and String record values.
JsonSerde<T>	A Serde that provides serialization and deserialization in JSON format.
JsonSerializer<T>	Generic Serializer for sending Java objects to Kafka as JSON.
JsonTypeResolver	Determine the JavaType from the topic/data/headers.
JUnitUtils	Utility methods for JUnit rules and conditions.
JUnitUtils.LevelsContainer
KafkaAdmin	An admin that delegates to an AdminClient to create topics defined in the application context.
KafkaAdmin.NewTopics	Wrapper for a collection of NewTopic to facilitate declaring multiple topics as a single bean.
KafkaAdminOperations	Provides a number of convenience methods wrapping AdminClient.
KafkaAwareTransactionManager<K,V>	A transaction manager that can provide a ProducerFactory.
KafkaBackoffAwareMessageListenerAdapter<K,V>	A AcknowledgingConsumerAwareMessageListener implementation that looks for a backoff dueTimestamp header and invokes a KafkaConsumerBackoffManager instance that will back off if necessary.
KafkaBackoffException	Exception thrown when the consumer should not yet consume the message due to backOff.
KafkaBackOffManagerFactory	Creates a KafkaBackOffManagerFactory instance.
KafkaBootstrapConfiguration	An ImportBeanDefinitionRegistrar class that registers a KafkaListenerAnnotationBeanPostProcessor bean capable of processing Spring's @KafkaListener annotation.
KafkaConditions	AssertJ custom Conditions.
KafkaConditions.ConsumerRecordKeyCondition<K>
KafkaConditions.ConsumerRecordKeyValueCondition<K,V>
KafkaConditions.ConsumerRecordPartitionCondition
KafkaConditions.ConsumerRecordTimestampCondition
KafkaConditions.ConsumerRecordValueCondition<V>
KafkaConsumerBackoffManager	Interface for backing off a MessageListenerContainer until a given dueTimestamp, if such timestamp is in the future.
KafkaConsumerBackoffManager.Context	Provides the state that will be used for backing off.
KafkaEvent	Base class for events.
KafkaException	The Spring for Apache Kafka specific NestedRuntimeException implementation.
KafkaException.Level	The log level for KafkaException.
KafkaExceptionLogLevelAware	A top level abstract class for classes that can be configured with a KafkaException.Level.
KafkaFailureCallback<K,V>	An enhanced FailureCallback for reporting KafkaProducerExceptions.
KafkaHandler	Annotation that marks a method to be the target of a Kafka message listener within a class that is annotated with KafkaListener.
KafkaHeaderMapper	Header mapper for Apache Kafka.
KafkaHeaders	The Kafka specific message headers constants.
KafkaJaasLoginModuleInitializer	Contains properties for setting up an AppConfigurationEntry that can be used for the Kafka client.
KafkaJaasLoginModuleInitializer.ControlFlag	Control flag values for login configuration.
KafkaListener	Annotation that marks a method to be the target of a Kafka message listener on the specified topics.
KafkaListenerAnnotationBeanPostProcessor<K,V>	Bean post-processor that registers methods annotated with KafkaListener to be invoked by a Kafka message listener container created under the covers by a KafkaListenerContainerFactory according to the parameters of the annotation.
KafkaListenerAnnotationBeanPostProcessor.AnnotationEnhancer	Post processes each set of annotation attributes.
KafkaListenerConfigurationSelector	A DeferredImportSelector implementation with the lowest order to import a KafkaBootstrapConfiguration as late as possible.
KafkaListenerConfigurer	Optional interface to be implemented by Spring managed bean willing to customize how Kafka listener endpoints are configured.
KafkaListenerConfigUtils	Configuration constants for internal sharing across subpackages.
KafkaListenerContainerFactory<C extends MessageListenerContainer>	Factory for MessageListenerContainers.
KafkaListenerEndpoint	Model for a Kafka listener endpoint.
KafkaListenerEndpointRegistrar	Helper bean for registering KafkaListenerEndpoint with a KafkaListenerEndpointRegistry.
KafkaListenerEndpointRegistry	Creates the necessary MessageListenerContainer instances for the registered endpoints.
KafkaListenerErrorHandler	An error handler which is called when a @KafkaListener method throws an exception.
KafkaListeners	Container annotation that aggregates several KafkaListener annotations.
KafkaMatchers	Hamcrest Matchers utilities.
KafkaMatchers.ConsumerRecordKeyMatcher<K>
KafkaMatchers.ConsumerRecordPartitionMatcher
KafkaMatchers.ConsumerRecordTimestampMatcher
KafkaMatchers.ConsumerRecordValueMatcher<V>
KafkaMessageHeaders	Overload of message headers configurable for adding id and timestamp headers.
KafkaMessageListenerContainer<K,V>	Single-threaded Message listener container using the Java Consumer supporting auto-partition assignment or user-configured assignment.
KafkaNull	This class represents NULL Kafka payload.
KafkaNullAwarePayloadArgumentResolver	PayloadMethodArgumentResolver that can properly decode KafkaNull payloads, returning null.
KafkaOperations<K,V>	The basic Kafka operations contract returning ListenableFutures.
KafkaOperations.OperationsCallback<K,V,T>	A callback for executing arbitrary operations on the KafkaOperations.
KafkaOperations.ProducerCallback<K,V,T>	A callback for executing arbitrary operations on the Producer.
KafkaOperations2<K,V>	The basic Kafka operations contract returning CompletableFutures.
KafkaProducerException	Exceptions when producing.
KafkaReplyTimeoutException	Exception when a reply is not received within a timeout.
KafkaResourceFactory	Base class for consumer/producer/admin creators.
KafkaResourceHolder<K,V>	Kafka resource holder, wrapping a Kafka producer.
KafkaSendCallback<K,V>	An enhanced ListenableFutureCallback for reporting KafkaProducerExceptions.
KafkaStreamBrancher<K,V>	Provides a method-chaining way to build branches in Kafka Streams processor topology.
KafkaStreamsConfiguration	Wrapper for StreamsBuilder properties.
KafkaStreamsCustomizer	Callback interface that can be used to configure KafkaStreams directly.
KafkaStreamsDefaultConfiguration	@Configuration class that registers a StreamsBuilderFactoryBean if StreamsConfig with the name KafkaStreamsDefaultConfiguration.DEFAULT_STREAMS_CONFIG_BEAN_NAME is present in the application context.
KafkaStreamsInfrastructureCustomizer	A customizer for infrastructure components such as the StreamsBuilder and Topology.
KafkaStreamsMicrometerListener	Creates a KafkaStreamsMetrics for the KafkaStreams.
KafkaTemplate<K,V>	A template for executing high-level operations.
KafkaTestUtils	Kafka testing utilities.
KafkaTransactionManager<K,V>	PlatformTransactionManager implementation for a single Kafka ProducerFactory.
KafkaUtils	Utility methods.
Listener	Code snippet for quick start.
ListenerContainerFactoryConfigurer	Decorates the provided ConcurrentKafkaListenerContainerFactory to add a DefaultErrorHandler and the DeadLetterPublishingRecoverer created by the DeadLetterPublishingRecovererFactory.
ListenerContainerFactoryResolver	Resolves a ConcurrentKafkaListenerContainerFactory to be used by the RetryTopicConfiguration.
ListenerContainerIdleEvent	An event that is emitted when a container is idle if the container is configured to do so.
ListenerContainerNoLongerIdleEvent	An event that is emitted when a container is no longer idle if configured to publish idle events.
ListenerContainerPartitionIdleEvent	An event that is emitted when a container partition is idle if the container is configured to do so.
ListenerContainerPartitionNoLongerIdleEvent	An event that is emitted when a partition is no longer idle if configured to publish idle events.
ListenerContainerPauseService	Service for pausing and resuming of MessageListenerContainer.
ListenerContainerRegistry	A registry for listener containers.
ListenerExecutionFailedException	The listener specific KafkaException extension.
ListenerInvokingBatchErrorHandler	A batch error handler that is capable of invoking the listener during error handling.
ListenerMetadata	Metadata associated to a KafkaListener.
ListenerType	Defines the listener type.
ListenerUtils	Listener utilities.
Log4j2LevelAdjuster	A JUnit method @Rule that changes the logger level for a set of classes while a test method is running.
LoggingCommitCallback	Logs commit results at DEBUG level for success and ERROR for failures.
LoggingErrorHandler	Deprecated. - use the CommonLoggingErrorHandler instead.
LoggingProducerListener<K,V>	The ProducerListener that logs exceptions thrown when sending messages.
LogIfLevelEnabled	Wrapper for a commons-logging Log supporting configurable logging levels.
LogIfLevelEnabled.Level	Logging levels.
LogLevels	Test classes annotated with this will change logging levels between tests.
LogLevelsCondition	JUnit condition that adjusts and reverts log levels before/after each test.
ManualAckListenerErrorHandler	A KafkaListenerErrorHandler that supports manual acks.
MappingJacksonParameterizedConverter	Subclass of MappingJackson2MessageConverter that can handle parameterized (generic) types.
MessageConverter	A top level interface for message converters.
MessageListener<K,V>	Listener for handling individual incoming Kafka messages.
MessageListenerContainer	Internal abstraction used by the framework representing a message listener container.
MessagingFunction	A function that receives a spring-messaging Message and returns a Message.
MessagingMessageConverter	A Messaging MessageConverter implementation for a message listener that receives individual messages.
MessagingMessageListenerAdapter<K,V>	An abstract MessageListener adapter providing the necessary infrastructure to extract the payload of a Message.
MessagingMessageListenerAdapter.ReplyExpressionRoot	Root object for reply expression evaluation.
MessagingTransformer<K,V,R>	A Transformer implementation that invokes a MessagingFunction converting to/from spring-messaging Message.
MethodKafkaListenerEndpoint<K,V>	A KafkaListenerEndpoint providing the method to invoke to process an incoming message for this endpoint.
MicrometerConsumerListener<K,V>	A consumer factory listener that manages KafkaClientMetrics.
MicrometerHolder	A wrapper for micrometer timers when available on the class path.
MicrometerProducerListener<K,V>	A producer factory listener that manages KafkaClientMetrics.
MultiMethodKafkaListenerEndpoint<K,V>	The MethodKafkaListenerEndpoint extension for several POJO methods based on the KafkaHandler.
NonResponsiveConsumerEvent	An event that is emitted when a consumer is not responding to the poll; with early versions of the kafka-clients, this was a possible indication that the broker is down.
OffsetAndMetadataProvider	Provider for OffsetAndMetadata.
ParseStringDeserializer<T>	Generic Deserializer for deserialization of entity from its String representation received from Kafka (a.k.a parsing).
PartitionOffset	Used to add partition/initial offset information to a KafkaListener.
ProducerFactory<K,V>	The strategy to produce a Producer instance(s).
ProducerFactory.Listener<K,V>	Called whenever a producer is added or removed.
ProducerFactoryUtils	Helper class for managing a Spring based Kafka DefaultKafkaProducerFactory in particular for obtaining transactional Kafka resources for a given ProducerFactory.
ProducerListener<K,V>	Listener for handling outbound Kafka messages.
ProducerPostProcessor<K,V>	Called by producer factories to perform post processing on newly created producers.
ProjectingMessageConverter	A MessageConverter implementation that uses a Spring Data ProjectionFactory to bind incoming messages to projection interfaces.
ReactiveKafkaConsumerTemplate<K,V>	Reactive kafka consumer operations implementation.
ReactiveKafkaProducerTemplate<K,V>	Reactive kafka producer operations implementation.
RecordFilterStrategy<K,V>	Implementations of this interface can signal that a record about to be delivered to a message listener should be discarded instead of being delivered.
RecordInterceptor<K,V>	An interceptor for ConsumerRecord invoked by the listener container before and after invoking the listener.
RecordMessageConverter	A Kafka-specific Message converter strategy.
RecordMessagingMessageListenerAdapter<K,V>	A MessageListener adapter that invokes a configurable HandlerAdapter; used when the factory is configured for the listener to receive individual messages.
RecoveringDeserializationExceptionHandler	A DeserializationExceptionHandler that calls a ConsumerRecordRecoverer.
RecoveryStrategy	Called to determine whether a record should be skipped.
RemainingRecordsErrorHandler	An error handler that has access to the unprocessed records from the last poll (including the failed record) and the consumer, for example to adjust offsets after an error.
ReplyHeadersConfigurer	A strategy for configuring which headers, if any, should be set in a reply message.
ReplyingKafkaOperations<K,V,R>	Request/reply operations.
ReplyingKafkaTemplate<K,V,R>	A KafkaTemplate that implements request/reply semantics.
RequestReplyFuture<K,V,R>	A listenable future for requests/replies.
RequestReplyMessageFuture<K,V>	A listenable future for Message replies.
RequestReplyTypedMessageFuture<K,V,P>	A listenable future for Message replies with a specific payload type.
RetryableTopic	Annotation to create the retry and dlt topics for a KafkaListener annotated listener.
RetryableTopicAnnotationProcessor	Processes the provided RetryableTopic annotation returning an RetryTopicConfiguration.
RetryingDeserializer<T>	A deserialzer configured with a delegate and a RetryOperations to retry deserialization in case of transient errors.
RetryingMessageListenerAdapter<K,V>	Deprecated. since 2.8 - use a suitably configured error handler instead.
RetryListener	A listener for retry activity.
RetryTopicBeanNames	The bean names for the non-blocking topic-based delayed retries feature.
RetryTopicComponentFactory	Provide the component instances that will be used with RetryTopicConfigurationSupport.
RetryTopicConfiguration	Contains the provided configuration for the retryable topics.
RetryTopicConfigurationBuilder	Builder class to create RetryTopicConfiguration instances.
RetryTopicConfigurationProvider	Attempts to provide an instance of RetryTopicConfiguration by either creating one from a RetryableTopic annotation, or from the bean container if no annotation is available.
RetryTopicConfigurationSupport	This is the main class providing the configuration behind the non-blocking, topic-based delayed retries feature.
RetryTopicConfigurationSupport.BlockingRetriesConfigurer	Configure blocking retries to be used along non-blocking.
RetryTopicConfigurationSupport.CustomizersConfigurer	Configure customizers for components instantiated by the retry topics feature.
RetryTopicConfigurer	Configures main, retry and DLT topics based on a main endpoint and provided configurations to acomplish a distributed retry / DLT pattern in a non-blocking fashion, at the expense of ordering guarantees.
RetryTopicConfigurer.EndpointProcessor
RetryTopicConstants	Constants for the RetryTopic functionality.
RetryTopicHeaders	Contains the headers that will be used in the forwarded messages.
RetryTopicNamesProviderFactory	Handles the naming related to the retry and dead letter topics.
RetryTopicNamesProviderFactory.RetryTopicNamesProvider
RetryTopicSchedulerWrapper	A wrapper class for a TaskScheduler to use for scheduling container resumption when a partition has been paused for a retry topic.
RoutingKafkaTemplate	A KafkaTemplate that routes messages based on the topic name.
SeekToCurrentBatchErrorHandler	Deprecated. with no replacement - use DefaultErrorHandler with an infinite BackOff.
SeekUtils	Seek utilities.
Sender	Code snippet for quick start.
SendResult<K,V>	Result for a ListenableFuture after a send.
SerializationUtils	Utilities for serialization.
SimpleKafkaHeaderMapper	A simple header mapper that maps headers directly; for outbound, only byte[] headers are mapped; for inbound, headers are mapped unchanged, as byte[].
StreamsBuilderFactoryBean	An AbstractFactoryBean for the StreamsBuilder instance and lifecycle control for the internal KafkaStreams instance.
StreamsBuilderFactoryBean.Listener	Called whenever a KafkaStreams is added or removed.
StreamsBuilderFactoryBeanConfigurer	A configurer for StreamsBuilderFactoryBean.
StreamsBuilderFactoryBeanCustomizer	Deprecated. in favor of StreamsBuilderFactoryBeanConfigurer due to a name clash with a similar class in Spring Boot.
StringJsonMessageConverter	JSON Message converter - String on output, String, Bytes, or byte[] on input.
StringOrBytesSerializer	A serializer that can handle byte[], Bytes and String.
Suffixer	Utility class that suffixes strings.
SuffixingRetryTopicNamesProviderFactory	Retry and dead letter naming handling that add a suffix to each name.
SuffixingRetryTopicNamesProviderFactory.SuffixingRetryTopicNamesProvider
ThreadStateProcessor	A general interface for managing thread-bound resources when a Consumer is available.
TimestampedException	A KafkaException that records the timestamp of when it was thrown.
ToFromStringSerde<T>	A Serde that delegates to a ToStringSerializer and ParseStringDeserializer.
TopicBuilder	Builder for a NewTopic.
TopicPartition	Used to add topic/partition information to a KafkaListener.
TopicPartitionOffset	A configuration container to represent a topic name, partition number and, optionally, an offset for it.
TopicPartitionOffset.SeekPosition	Enumeration for "special" seeks.
TopicSuffixingStrategy	Constants for the RetryTopic functionality.
ToStringSerializer<T>	Generic Serializer that relies on Object.toString() to get serialized representation of the entity.
TransactionSupport	Utilities for supporting transactions.