org.apache.camel.spi
Interfaces 
BrowsableEndpoint
ClassResolver
ComponentResolver
DataFormat
ErrorHandlerWrappingStrategy
ExceptionHandler
ExchangeConverter
ExchangeFormatter
HeaderFilterStrategy
IdempotentRepository
Injector
InstrumentationAgent
InterceptStrategy
Language
LanguageResolver
LifecycleStrategy
NamespaceAware
PackageScanClassResolver
PackageScanFilter
Policy
Provider
Registry
RouteContext
Synchronization
TraceableUnitOfWork
TypeConverterAware
TypeConverterRegistry
UnitOfWork