Interface Manager<I, C, T extends C>

Type Parameters:

I - the class used to identify each object held in this manager

C - the super class being managed

T - the implementation class this manager is "managing"

All Superinterfaces:

Function<I,T>

All Known Subinterfaces:

GroupManager<T>, TrackManager<T>, UserManager<T>

All Known Implementing Classes:

AbstractGroupManager, AbstractManager, AbstractTrackManager, AbstractUserManager, StandardGroupManager, StandardTrackManager, StandardUserManager

public interface Manager<I, C, T extends C>
extends Function<I,T>

A class which manages instances of a class

Method Summary

Modifier and Type	Method	Description
Map<I,T>	getAll()	Gets a map containing all cached instances held by this manager.
T	getIfLoaded(I id)	Get an object by id
T	getOrMake(I id)	Gets or creates an object by id
boolean	isLoaded(I id)	Check to see if a object is loaded or not
void	retainAll(Collection<I> ids)	Calls unload(Object) for all objects currently loaded not in the given collection of ids.
void	unload(I id)	Removes and unloads the object from the manager

Methods inherited from interface Function

andThen, apply, compose

Method Details

getAll

Map<I,T> getAll()

Gets a map containing all cached instances held by this manager.

Returns:

all instances held in this manager

getOrMake

T getOrMake(I id)

Gets or creates an object by id

Should only every be called by the storage implementation.

Parameters:

id - The id to search by

Returns:

a T object if the object is loaded or makes and returns a new object

getIfLoaded

T getIfLoaded(I id)

Get an object by id

Parameters:

id - The id to search by

Returns:

a T object if the object is loaded, returns null if the object is not loaded

isLoaded

boolean isLoaded(I id)

Check to see if a object is loaded or not

Parameters:

id - The id of the object

Returns:

true if the object is loaded

unload

void unload(I id)

Removes and unloads the object from the manager

Parameters:

id - The object id to unload

retainAll

void retainAll(Collection<I> ids)

Calls unload(Object) for all objects currently loaded not in the given collection of ids.

Parameters:

ids - the ids to retain