com.artipie.asto

Class Storage.Wrap

java.lang.Object

com.artipie.asto.Storage.Wrap

All Implemented Interfaces:

Storage

Enclosing interface:

Storage

public abstract static class Storage.Wrap
extends Object
implements Storage

Forwarding decorator for Storage.

Since:

0.18

Nested Class Summary

Nested classes/interfaces inherited from interface com.artipie.asto.Storage

Storage.Wrap

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Wrap(Storage delegate) Ctor.

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	delete(Key key) Removes value from storage.
CompletableFuture<Boolean>	exists(Key key) This file exists?
CompletableFuture<Collection<Key>>	list(Key prefix) Return the list of keys that start with this prefix, for example "foo/bar/".
CompletableFuture<Void>	move(Key source, Key destination) Moves value from one location to another.
CompletableFuture<Void>	save(Key key, Content content) Saves the bytes to the specified key.
CompletableFuture<Long>	size(Key key) Get value size.
CompletableFuture<Transaction>	transaction(List<Key> keys) Start a transaction with specified keys.
CompletableFuture<Content>	value(Key key) Obtain bytes by key.

Methods inherited from class java.lang.Object

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

Constructor Detail

Wrap

protected Wrap(Storage delegate)

Ctor.

Parameters:

delegate - Delegate storage

Method Detail

exists

public final CompletableFuture<Boolean> exists(Key key)

Description copied from interface: Storage

This file exists?

Specified by:

exists in interface Storage

Parameters:

key - The key (file name)

Returns:

TRUE if exists, FALSE otherwise

list

public final CompletableFuture<Collection<Key>> list(Key prefix)

Description copied from interface: Storage

Return the list of keys that start with this prefix, for example "foo/bar/".

Specified by:

list in interface Storage

Parameters:

prefix - The prefix.

Returns:

Collection of relative keys.

save

public final CompletableFuture<Void> save(Key key,
                                          Content content)

Description copied from interface: Storage

Saves the bytes to the specified key.

Specified by:

save in interface Storage

Parameters:

key - The key

content - Bytes to save

Returns:

Completion or error signal.

move

public final CompletableFuture<Void> move(Key source,
                                          Key destination)

Description copied from interface: Storage

Moves value from one location to another.

Specified by:

move in interface Storage

Parameters:

source - Source key.

destination - Destination key.

Returns:

Completion or error signal.

size

public final CompletableFuture<Long> size(Key key)

Description copied from interface: Storage

Get value size.

Specified by:

size in interface Storage

Parameters:

key - The key of value.

Returns:

Size of value in bytes.

value

public final CompletableFuture<Content> value(Key key)

Description copied from interface: Storage

Obtain bytes by key.

Specified by:

value in interface Storage

Parameters:

key - The key

Returns:

Bytes.

delete

public final CompletableFuture<Void> delete(Key key)

Description copied from interface: Storage

Removes value from storage. Fails if value does not exist.

Specified by:

delete in interface Storage

Parameters:

key - Key for value to be deleted.

Returns:

Completion or error signal.

transaction

public final CompletableFuture<Transaction> transaction(List<Key> keys)

Description copied from interface: Storage

Start a transaction with specified keys. These specified keys are the scope of a transaction. You will be able to perform storage operations like Storage.save(Key, Content) or Storage.value(Key) only in the scope of a transaction.

Specified by:

transaction in interface Storage

Parameters:

keys - The keys regarding which transaction is atomic

Returns:

Transaction