me.lucko.luckperms.api.manager

Interface TrackManager

public interface TrackManager

Represents the object responsible for managing Track instances.

All blocking methods return CompletableFutures, which will be populated with the result once the data has been loaded/saved asynchronously. Care should be taken when using such methods to ensure that the main server thread is not blocked.

Methods such as CompletableFuture.get() and equivalent should not be called on the main server thread. If you need to use the result of these operations on the main server thread, register a callback using CompletableFuture.thenAcceptAsync(Consumer, Executor).

Since:

4.0

Method Summary

Modifier and Type	Method and Description
@NonNull CompletableFuture<Track>	createAndLoadTrack(@NonNull String name) Creates a new track in the plugin's storage provider and then loads it into memory.
@NonNull CompletableFuture<Void>	deleteTrack(@NonNull Track track) Permanently deletes a track from the plugin's storage provider.
@NonNull Set<Track>	getLoadedTracks() Gets a set of all loaded tracks.
@Nullable Track	getTrack(@NonNull String name) Gets a loaded track.
default @NonNull Optional<Track>	getTrackOpt(@NonNull String name) Gets a loaded track.
boolean	isLoaded(@NonNull String name) Check if a track is loaded in memory
@NonNull CompletableFuture<Void>	loadAllTracks() Loads all tracks into memory.
@NonNull CompletableFuture<Optional<Track>>	loadTrack(@NonNull String name) Loads a track from the plugin's storage provider into memory.
@NonNull CompletableFuture<Void>	saveTrack(@NonNull Track track) Saves a track's data back to the plugin's storage provider.

Method Detail

createAndLoadTrack

@NonNull CompletableFuture<Track> createAndLoadTrack(@NonNull String name)

Creates a new track in the plugin's storage provider and then loads it into memory.

If a track by the same name already exists, it will be loaded.

This method is effectively the same as Storage.createAndLoadTrack(String), however, the Future returns the resultant track instance instead of a boolean flag.

Unlike the method in Storage, when a track cannot be loaded, the future will be completed exceptionally.

Parameters:

name - the name of the track

Returns:

the resultant track

Throws:

NullPointerException - if the name is null

Since:

4.1

loadTrack

@NonNull CompletableFuture<Optional<Track>> loadTrack(@NonNull String name)

Loads a track from the plugin's storage provider into memory.

Returns an empty optional if the track does not exist.

This method is effectively the same as Storage.loadTrack(String), however, the Future returns the resultant track instance instead of a boolean flag.

Unlike the method in Storage, when a track cannot be loaded, the future will be completed exceptionally.

Parameters:

name - the name of the track

Returns:

the resultant track

Throws:

NullPointerException - if the name is null

Since:

4.1

saveTrack

@NonNull CompletableFuture<Void> saveTrack(@NonNull Track track)

Saves a track's data back to the plugin's storage provider.

You should call this after you make any changes to a track.

This method is effectively the same as Storage.saveTrack(Track), however, the Future returns void instead of a boolean flag.

Unlike the method in Storage, when a track cannot be saved, the future will be completed exceptionally.

Parameters:

track - the track to save

Returns:

a future to encapsulate the operation.

Throws:

NullPointerException - if track is null

IllegalStateException - if the track instance was not obtained from LuckPerms.

Since:

4.1

deleteTrack

@NonNull CompletableFuture<Void> deleteTrack(@NonNull Track track)

Permanently deletes a track from the plugin's storage provider.

This method is effectively the same as Storage.deleteTrack(Track), however, the Future returns void instead of a boolean flag.

Unlike the method in Storage, when a track cannot be deleted, the future will be completed exceptionally.

Parameters:

track - the track to delete

Returns:

a future to encapsulate the operation.

Throws:

NullPointerException - if track is null

IllegalStateException - if the track instance was not obtained from LuckPerms.

Since:

4.1

loadAllTracks

@NonNull CompletableFuture<Void> loadAllTracks()

Loads all tracks into memory.

This method is effectively the same as Storage.loadAllTracks(), however, the Future returns void instead of a boolean flag.

Unlike the method in Storage, when a track cannot be loaded, the future will be completed exceptionally.

Returns:

a future to encapsulate the operation.

Since:

4.1

getTrack

@Nullable Track getTrack(@NonNull String name)

Gets a loaded track.

Parameters:

name - the name of the track to get

Returns:

a Track object, if one matching the name exists, or null if not

Throws:

NullPointerException - if the name is null

getTrackOpt

default @NonNull Optional<Track> getTrackOpt(@NonNull String name)

Gets a loaded track.

This method does not return null, unlike getTrack(java.lang.String)

Parameters:

name - the name of the track to get

Returns:

an optional Track object

Throws:

NullPointerException - if the name is null

getLoadedTracks

@NonNull Set<Track> getLoadedTracks()

Gets a set of all loaded tracks.

Returns:

a Set of Track objects

isLoaded

boolean isLoaded(@NonNull String name)

Check if a track is loaded in memory

Parameters:

name - the name to check for

Returns:

true if the track is loaded

Throws:

NullPointerException - if the name is null