org.gecko.rsa.api.util

Class ReferenceCounter<K>

java.lang.Object

org.gecko.rsa.api.util.ReferenceCounter<K>

Type Parameters:

K - the key type

public class ReferenceCounter<K>
extends java.lang.Object

Manages a reference count per key.

Constructor Summary

Constructors

Constructor and Description
ReferenceCounter()

Method Summary

Modifier and Type	Method and Description
int	add(K key) Increases the reference count for the given key, or sets it to 1 if the key has no existing count.
int	remove(K key) Decreases the reference count for the given key, and removes it if it reaches 0.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReferenceCounter

public ReferenceCounter()

Method Detail

add

public int add(K key)

Increases the reference count for the given key, or sets it to 1 if the key has no existing count.

Parameters:

key - a key

Returns:

the updated reference count

remove

public int remove(K key)

Decreases the reference count for the given key, and removes it if it reaches 0. If the key has no existing count, -1 is returned.

Parameters:

key - a key

Returns:

the updated reference count, or -1 if the key has no existing count