Package org.apache.camel.support

Base classes that help to implement the camel API and are expected to be extended by the user

Interface Summary

Interface	Description
LRUCache<K,V>	A least-recently-used cache.
PropertyBindingListener	Listener when using Camel property binding (org.apache.camel.support.PropertyBinding).
PropertyBindingSupport.OnAutowiring
RestConsumerContextPathMatcher.ConsumerPath<T>	Consumer path details which must be implemented and provided by the components.
SimpleTypeConverter.ConversionMethod

Class Summary

Class	Description
AsyncCallbackToCompletableFutureAdapter<T>	AsyncCallback that provides a CompletableFuture completed when async action is done
AsyncProcessorConverterHelper	A simple converter that can convert any Processor to an AsyncProcessor.
AsyncProcessorHelper	Helper methods for AsyncProcessor objects.
AsyncProcessorSupport
BreakpointSupport	A support class for Breakpoint implementations to use as base class.
BridgeExceptionHandlerToErrorHandler	An ExceptionHandler that uses the DefaultConsumer to process the caused exception to send the message into the Camel routing engine which allows to let the routing engine handle the exception.
CamelContextHelper	A number of helper methods
CamelObjectInputStream
ChildServiceSupport	Base class to control lifecycle for a set of child Services.
ClassicUuidGenerator	The classic (Camel 2.x) UuidGenerator optimized for Camel usage.
ConstantExpressionAdapter	A helper class for developers wishing to implement an Expression using Java code with a minimum amount of code to write so that the developer only needs to implement one of the ExpressionAdapter.evaluate(Exchange, Class) or ExpressionSupport.evaluate(Exchange) methods.
CustomizersSupport
CustomizersSupport.ComponentCustomizationEnabledPolicy	A ComponentCustomizer.Policy that uses a hierarchical lists of properties to determine if customization is enabled for the given Component.
CustomizersSupport.DataFormatCustomizationEnabledPolicy	A DataFormatCustomizer.Policy that uses a hierarchical lists of properties to determine if customization is enabled for the given DataFormat.
CustomizersSupport.LanguageCustomizationEnabledPolicy	A LanguageCustomizer.Policy that uses a hierarchical lists of properties to determine if customization is enabled for the given Language.
DefaultAsyncProducer	A default implementation of Producer for implementation inheritance, which can process Exchanges asynchronously.
DefaultComponent	Default component to use for base for components implementations.
DefaultConsumer	A default consumer useful for implementation inheritance.
DefaultContextReloadStrategy	Default ContextReloadStrategy.
DefaultDataFormat	A default dataformat useful for implementation inheritance.
DefaultEndpoint	Default Endpoint.
DefaultEndpointUtilizationStatistics
DefaultExchange	The default and only implementation of Exchange.
DefaultExchangeHolder	Holder object for sending an exchange over a remote wire as a serialized object.
DefaultHeaderFilterStrategy	The default header filtering strategy.
DefaultInterceptSendToEndpoint	This is an endpoint when sending to it, is intercepted and is routed in a detour (before and optionally after).
DefaultLRUCacheFactory	Default LRUCacheFactory which uses a LinkedHashMap based implementation.
DefaultMessage	The default implementation of Message
DefaultMessageHistory	Default MessageHistory.
DefaultPollingConsumerPollStrategy	A default implementation that will not retry on rollback.
DefaultPollingEndpoint	A base class for an endpoint which the default consumer mode is to use a PollingConsumer
DefaultPooledExchange	The default and only implementation of PooledExchange.
DefaultProducer	A default implementation of Producer for implementation inheritance.
DefaultRegistry	The default Registry which supports using a given first-choice repository to lookup the beans, such as Spring, JNDI, OSGi etc.
DefaultScheduledPollConsumer	A default implementation of an event driven Consumer which uses the PollingConsumer
DefaultScheduledPollConsumerScheduler	The default scheduler for ScheduledPollConsumer.
DefaultThreadPoolFactory	Factory for thread pools that uses the JDK Executors for creating the thread pools.
DefaultTimeoutMap<K,V>	Default implementation of the TimeoutMap.
DefaultUuidGenerator	Default UuidGenerator (32 chars) optimized for Camel usage.
DeferProducer	A Producer that defers being started, until CamelContext has been started, this ensures that the producer is able to adapt to changes that may otherwise occur during starting CamelContext.
EmptyAsyncCallback	An empty AsyncCallback which allows to share the same instance instead of creating a new instance for each message.
EndpointHelper	Some helper methods for working with Endpoint instances
EventDrivenPollingConsumer	A default implementation of the PollingConsumer which uses the normal asynchronous consumer mechanism along with a BlockingQueue to allow the caller to pull messages on demand.
EventHelper	Helper for easily sending event notifications in a single line of code
EventNotifierSupport	Base class to extend for custom EventNotifier implementations.
ExchangeHelper	Some helper methods for working with Exchange objects
ExpressionAdapter	A helper class for developers wishing to implement an Expression using Java code with a minimum amount of code to write so that the developer only needs to implement one of the ExpressionAdapter.evaluate(org.apache.camel.Exchange, Class) or ExpressionSupport.evaluate(org.apache.camel.Exchange) methods.
ExpressionComparator	An implementation of Comparator that takes an Expression which is evaluated on each exchange to be compared
ExpressionListComparator	An implementation of Comparator which takes a list of Expression objects which is evaluated on each exchange to compare them
ExpressionSupport	A useful base class for Predicate and Expression implementations
ExpressionToPredicateAdapter	To adapt Expression as a Predicate
FileWatcherResourceReloadStrategy	A file based ResourceReloadStrategy which watches a file folder for modified files and reload on file changes.
GroupIterator	Group based Iterator which groups the given Iterator a number of times and then return a combined response as a List.
GroupTokenIterator	Group based Iterator which groups the given Iterator a number of times and then return a combined response as a String.
GZIPHelper	Helper class to help wrapping content into GZIP input and output streams.
HeaderFilterStrategyComponent	Base class for components to support configuring a HeaderFilterStrategy.
HeaderSelectorProducer	A selector-based producer which uses a header value to determine which processor should be invoked.
InputStreamIterator	An InputStream that wraps an Iterator which reads iterations as byte array data.
IntrospectionSupport	Deprecated. use BeanIntrospection
LanguageSupport	Base language for Language implementations.
LazyStartProducer	A Producer which is created and started lazy, on the first message processed.
LifecycleStrategySupport	A useful base class for LifecycleStrategy implementations.
LocalBeanRegistry	A special registry which is used for local beans.
LoggerHelper	Helper for logging purposes.
LoggingExceptionHandler	A default implementation of ExceptionHandler which uses a CamelLogger to log the exception.
LRUCacheFactory	Factory to create LRUCache instances.
MessageHelper	Some helper methods when working with Message.
MessageSupport	A base class for implementation inheritance providing the core Message body handling features but letting the derived class deal with headers.
NoLock	Empty lock implementation
NormalizedUri	Implementation of NormalizedEndpointUri.
ObjectHelper	A number of useful helper methods for working with Objects
OffUuidGenerator	UuidGenerator which is turned off for exchange ids, but generated UUIDs for everything else.
OrderedComparator	A comparator to sort Ordered
PatternHelper
PlatformHelper	Deprecated.
PollingConsumerSupport	A useful base class for implementations of PollingConsumer
PooledObjectFactorySupport<T>	Base class for building PooledObjectFactory based factories.
PredicateAssertHelper	A helper for doing Predicate assertions.
PredicateToExpressionAdapter	To adapt Predicate as an Expression
ProcessorEndpoint	An endpoint which allows exchanges to be sent into it which just invokes a given Processor.
ProcessorPollingConsumer	A simple implementation of PollingConsumer which just uses a Processor.
PropertyBindingSupport	A convenient support class for binding String valued properties to an instance which uses a set of conventions: property placeholders - Keys and values using Camels property placeholder will be resolved nested - Properties can be nested using the dot syntax (OGNL and builder pattern using with as prefix), eg foo.bar=123 map - Properties can lookup in Map's using map syntax, eg foo[bar] where foo is the name of the property that is a Map instance, and bar is the name of the key. list - Properties can refer or add to in List's using list syntax, eg foo[0] where foo is the name of the property that is a List instance, and 0 is the index.
PropertyBindingSupport.Builder	To use a fluent builder style to configure this property binding support.
PropertyConfigurerHelper	Helper class for dealing with configurers.
PrototypeObjectFactorySupport<T>	PooledObjectFactory that creates a new instance (does not pool).
ResolverHelper	Some helper methods for new resolvers (like ComponentResolver, DataFormatResolver, etc.).
ResolverHelper.LookupExceptionHandler
ResourceHelper	Helper class for loading resources on the classpath or file system.
ResourceReloadStrategySupport	Base class for implementing custom ResourceReloadStrategy SPI plugins.
ResourceResolverSupport	Base class for ResourceResolver implementations.
ResourceSupport	Base class for Resource implementations.
RestComponentHelper	Helper class for rest-dsl components.
RestConsumerContextPathMatcher	A context path matcher when using rest-dsl that allows components to reuse the same matching logic.
RestProducerFactoryHelper	Helper for creating configured Components used by the RestProducerFactory contract.
RouteOnDemandReloadStrategy	Strategy for triggering on-demand reloading of Camel routes in a running Camel application.
RoutePolicySupport	A base class for developing custom RoutePolicy implementations.
RoutesBuilderLoaderSupport	Base class for RoutesBuilderLoader implementations.
RouteTemplateHelper	Helper for working with route templates.
RouteWatcherReloadStrategy	Watcher strategy for triggering reloading of Camel routes in a running Camel application.
ScheduledBatchPollingConsumer	A useful base class for any consumer which is polling batch based
ScheduledPollConsumer	A useful base class for any consumer which is polling based
ScheduledPollConsumerHealthCheck	HealthCheck that uses the last polling state from ScheduledPollConsumer when reporting the health.
ScheduledPollEndpoint	A base class for Endpoint which creates a ScheduledPollConsumer
ScriptHelper
ShortUuidGenerator	UuidGenerator that is 50% the size of the default (16 chars) optimized for Camel usage.
SimpleEventNotifierSupport	Base class to extend for custom EventNotifier implementations.
SimpleRegistry	A Map-based registry.
SimpleTypeConverter	Another base class for TypeConverter implementations.
SimpleUuidGenerator	This implementation uses a counter which increments by one.
SingleInputLanguageSupport	Base class for Language implementations that support different sources of input data.
SingleInputTypedLanguageSupport	Base class for Language implementations that support a result type and different sources of input data.
SupplierRegistry	Used for storing beans that are supplied via a Supplier.
SynchronizationAdapter	Simple Synchronization adapter with empty methods for easier overriding of single methods.
SynchronousDelegateProducer	To process the delegated producer in synchronous mode.
TimeoutMapEntry<K,V>	Represents an entry in a TimeoutMap
TimerListenerManager	A TimerListener manager which triggers the TimerListener listeners once every second.
TypeConverterSupport	Base class for TypeConverter implementations.
TypedLanguageSupport	Base class for Language implementations that support a result type.
TypedProcessorFactory<T extends org.apache.camel.NamedNode>
UnitOfWorkHelper	Utility methods for UnitOfWork
VanillaUuidGenerator	Deprecated. this is now the default uuid generator in Camel 3.6 onwards.