Class MemoryStore

java.lang.Object

com.github.mizosoft.methanol.internal.cache.MemoryStore

All Implemented Interfaces:

Store, Closeable, Flushable, AutoCloseable

public final class MemoryStore
extends Object
implements Store

Store implementation that stores entries in memory.

Nested Class Summary

Nested classes/interfaces inherited from interface Store

Store.Editor, Store.EntryReader, Store.EntryWriter, Store.Viewer

Constructor Summary

Constructors

Constructor	Description
MemoryStore(long maxSize)

Method Summary

Modifier and Type	Method	Description
void	clear()	Removes all entries from this store.
void	close()	Closes this store.
void	dispose()	Atomically clears and closes this store.
Optional<Store.Editor>	edit(String key)	Synchronous variant of Store.edit(String, Executor).
CompletableFuture<Optional<Store.Editor>>	edit(String key, Executor executor)	Opens an editor for the entry associated with the given key.
void	flush()	Flushes any indexing data buffered by this store.
Iterator<Store.Viewer>	iterator()	Returns an iterator of Viewers over the entries in this store.
long	maxSize()	Returns this store's max size in bytes.
boolean	remove(String key)	Removes the entry associated with the given key.
long	size()	Returns the size in bytes of all entries in this store.
String	toString()
Optional<Store.Viewer>	view(String key)	Synchronous variant of Store.view(String, Executor).
CompletableFuture<Optional<Store.Viewer>>	view(String key, Executor executor)	Opens a viewer for the entry associated with the given key.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Store

removeAll

Constructor Details

MemoryStore

public MemoryStore(long maxSize)

Method Details

maxSize

public long maxSize()

Description copied from interface: Store

Returns this store's max size in bytes.

Specified by:

maxSize in interface Store

size

public long size()

Description copied from interface: Store

Returns the size in bytes of all entries in this store.

Specified by:

size in interface Store

view

public Optional<Store.Viewer> view(String key)

Description copied from interface: Store

Synchronous variant of Store.view(String, Executor).

Specified by:

view in interface Store

view

public CompletableFuture<Optional<Store.Viewer>> view(String key,
 Executor executor)

Description copied from interface: Store

Opens a viewer for the entry associated with the given key. An empty optional is returned if there's no such entry.

Specified by:

view in interface Store

edit

public Optional<Store.Editor> edit(String key)

Description copied from interface: Store

Synchronous variant of Store.edit(String, Executor).

Specified by:

edit in interface Store

edit

public CompletableFuture<Optional<Store.Editor>> edit(String key,
 Executor executor)

Description copied from interface: Store

Opens an editor for the entry associated with the given key. An empty optional is returned either if there's no such entry, or such entry cannot be edited at the moment.

Specified by:

edit in interface Store

iterator

public Iterator<Store.Viewer> iterator()

Description copied from interface: Store

Returns an iterator of Viewers over the entries in this store. The iterator doesn't throw ConcurrentModificationException when the store is asynchronously modified, but there's no guarantee such changes are reflected.

Specified by:

iterator in interface Store

remove

public boolean remove(String key)

Description copied from interface: Store

Removes the entry associated with the given key.

Specified by:

remove in interface Store

clear

public void clear()

Description copied from interface: Store

Removes all entries from this store.

Specified by:

clear in interface Store

dispose

public void dispose()

Description copied from interface: Store

Atomically clears and closes this store.

Specified by:

dispose in interface Store

close

public void close()

Description copied from interface: Store

Closes this store. Once the store is closed, all ongoing edits fail, either silently or by throwing an exception, to write or commit anything.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface Store

flush

public void flush()

Description copied from interface: Store

Flushes any indexing data buffered by this store.

Specified by:

flush in interface Flushable

Specified by:

flush in interface Store

toString

public String toString()

Overrides:

toString in class Object