AbstractStorage

public abstract class AbstractStorage<I, M extends Message, R extends ReadRequest<I>> implements Storage<I, M, R>

Abstract base for storages.

A storage can read and write messages of the given type.

<I>

the type of IDs of storage records

<M>

the type of records kept in the storage

<R>

the type of read requests for the storage

Constructors

protected void AbstractStorage(boolean multitenant)

protected void checkNotClosed()

protected void checkNotClosed(String message)

Ensures the storage is not closed.

public void close()

Closes the storage.

public boolean isClosed()

Tests whether the storage is closed.

public boolean isMultitenant()

Verifies whether the storage is multitenant.

public boolean isOpen()

Tests whether the storage is open.

public abstract void close()

public abstract Iterator<I> index()

Returns an iterator over identifiers of records in the storage.

public abstract Optional<M> read(R request)

Reads a record from the storage by the specified request.

public abstract void write(I id, M record)

Writes a record into the storage.