kieker.common.util.registry

Class Registry<E>

java.lang.Object

kieker.common.util.registry.Registry<E>

Type Parameters:

E - the type of registered objects

All Implemented Interfaces:

IRegistry<E>

public final class Registry<E>
extends java.lang.Object
implements IRegistry<E>

A simple registry to assign unique ids to objects. The basic strategy is to subdivide the table among Segments, each of which itself is a concurrently readable hash table. Based upon ConcurrentHashMap. Written by Doug Lea with assistance from members of JCP JSR-166 Expert Group and released to the public domain, as explained at http://creativecommons.org/publicdomain/zero/1.0/

Since:

1.5

Author:

Jan Waller

Constructor Summary

Constructors

Constructor and Description
Registry() Creates a new, empty registry with a default initial capacity (32), load factor (0.75) and concurrencyLevel (8).

Method Summary

Methods

Modifier and Type	Method and Description
void	clear() Clears the whole registry.
int	get(E value) Gets a unique id for an object.
E	get(int id) Gets the object associated with the unique id.
E[]	getAll() Deprecated. since 1.13 (to be removed in 1.14): Do not iterate through the registry.
long	getId() Gets the ID of this registry.
int	getSize() Returns the number of registered objects.
void	remove(E value) Removes the given element from the registry.
void	setRecordReceiver(IRegistryRecordReceiver recordReceiver) Enables logging of newly registered objects.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Registry

public Registry()

Creates a new, empty registry with a default initial capacity (32), load factor (0.75) and concurrencyLevel (8).

Method Detail

getId

public long getId()

Description copied from interface: IRegistry

Gets the ID of this registry.

Specified by:

getId in interface IRegistry<E>

Returns:

The registry's ID

setRecordReceiver

public final void setRecordReceiver(IRegistryRecordReceiver recordReceiver)

Enables logging of newly registered objects.

Specified by:

setRecordReceiver in interface IRegistry<E>

Parameters:

recordReceiver - the IRegistryRecordReceiver logged to

get

public final int get(E value)

Gets a unique id for an object.

Specified by:

get in interface IRegistry<E>

Parameters:

value - the object

Returns:

the unique id

get

public final E get(int id)

Gets the object associated with the unique id.

Specified by:

get in interface IRegistry<E>

Parameters:

id - the unique id

Returns:

the associated object

getAll

@Deprecated
public final E[] getAll()

Deprecated. since 1.13 (to be removed in 1.14): Do not iterate through the registry.

Return an array with all registered objects.

Specified by:

getAll in interface IRegistry<E>

Returns:

array of registered objects

getSize

public final int getSize()

Description copied from interface: IRegistry

Returns the number of registered objects.

Specified by:

getSize in interface IRegistry<E>

Returns:

number of registered objects

remove

public final void remove(E value)

Removes the given element from the registry.

Parameters:

value - The element to remove.

clear

public final void clear()

Clears the whole registry.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object