org.eclipse.update.core
Interfaces 
IArchiveReference
ICategory
IContentConsumer
IFeature
IFeatureContentConsumer
IFeatureContentProvider
IFeatureFactory
IFeatureReference
IImport
IIncludedFeatureReference
IInstallHandler
IInstallHandlerEntry
IInstallHandlerWithFilter
INonPluginEntry
IPlatformEnvironment
IPluginEntry
ISite
ISiteContentProvider
ISiteFactory
ISiteFactoryExtension
ISiteFeatureReference
ISiteWithMirrors
IUpdateConstants
IURLEntry
IVerificationListener
IVerificationResult
IVerifier
Classes 
ArchiveReference
BaseFeatureFactory
BaseInstallHandler
BaseSiteFactory
Category
ContentReference
Feature
FeatureContentProvider
FeatureReference
Import
IncludedFeatureReference
InstallHandlerEntry
InstallMonitor
JarContentReference
JarContentReference.ContentSelector
JarEntryContentReference
NonPluginEntry
PluginEntry
Site
SiteContentProvider
SiteFeatureReference
SiteFeatureReferenceModel
SiteManager
URLEntry
Utilities
Verifier
VersionedIdentifier