Package org.janusgraph.diskstorage

Interface Summary

Interface	Description
BaseTransaction	Represents a transaction for a particular storage backend.
BaseTransactionConfig
BaseTransactionConfigurable	An extension to the BaseTransaction interface that exposes a configuration object of type BaseTransactionConfig for this particular transaction.
Entry	An entry is the primitive persistence unit used in the graph database storage backend.
EntryList
IDAuthority	Handles the unique allocation of ids.
IDBlock	Represents a block of ids.
LoggableTransaction
MetaAnnotatable
MetaAnnotated
ReadBuffer	A Buffer that allows sequential reads and static reads.
ScanBuffer	A Buffer that allows sequential reads.
StaticBuffer	A Buffer that only allows static access.
StaticBuffer.Factory<T>
StoreMetaData<T>	Store-specific (Column-family-specific) options passed between JanusGraph core and its underlying KeyColumnValueStore implementation.
WriteBuffer	A Buffer that allows simple writes and returns the result as a StaticBuffer.

Class Summary

Class	Description
Backend	Orchestrates and configures all backend systems: The primary backend storage (KeyColumnValueStore) and all external indexing providers (IndexProvider).
BackendTransaction	Bundles all storage/index transactions and provides a proxy for some of their methods for convenience.
EntryList.EmptyList
EntryMetaData.Map	EntryMetaData.Map extends EnumMap to add validation prior to invoking the superclass EnumMap::put(k,v) method.
Mutation<E,K>	Container for collection mutations against a data store.
StoreMetaData.Container

Enum Summary

Enum	Description
EntryMetaData
StandardIndexProvider	This enum is only intended for use by JanusGraph internals.
StandardStoreManager	This enum is only intended for use by JanusGraph internals.
StoreMetaData.TTLImpl	Time-to-live for all data written to the store.

Exception Summary

Exception	Description
BackendException	Exception thrown in the storage layer of the graph database.
PermanentBackendException	This exception signifies a permanent exception in a JanusGraph storage backend, that is, an exception that is due to a permanent failure while persisting data.
ResourceUnavailableException	This exception is thrown if a resource is being accessed that is unavailable.
TemporaryBackendException	This exception signifies a (potentially) temporary exception in a JanusGraph storage backend, that is, an exception that is due to a temporary unavailability or other exception that is not permanent in nature.