org.opensaml.saml2.metadata.provider
Interfaces 
MetadataFilter
MetadataProvider
ObservableMetadataProvider
ObservableMetadataProvider.Observer
Classes 
AbstractMetadataProvider
AbstractObservableMetadataProvider
BaseMetadataProvider
ChainingMetadataProvider
DOMMetadataProvider
FileBackedURLMetadataProvider
FilesystemMetadataProvider
MetadataFilterChain
URLMetadataProvider
Exceptions 
FilterException
MetadataProviderException