Package org.apache.maven.impl.cache

Class Cache.RefConcurrentMap<K,V>

java.lang.Object

org.apache.maven.impl.cache.Cache.RefConcurrentMap<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

Map<K,V>, Cache<K,V>

Enclosing interface:

Cache<K,V>

public static class Cache.RefConcurrentMap<K,V>
extends Object
implements Map<K,V>, Cache<K,V>

A concurrent map implementation that uses configurable reference types for both keys and values, and supports automatic cleanup of garbage-collected entries.

This implementation is package-private and accessed through the Cache interface.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.maven.impl.cache.Cache

Cache.EvictionListener, Cache.RefConcurrentMap<K,V>, Cache.ReferenceType

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method	Description
void	clear()
V	computeIfAbsent(K key, Function<? super K,? extends V> mappingFunction)
V	computeIfAbsent(K key, Function<? super K,? extends V> mappingFunction, Cache.ReferenceType referenceType)	Computes a value for the given key if it's not already present, using the specified reference type.
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<K,V>>	entrySet()
V	get(Object key)
Cache.ReferenceType	getKeyReferenceType()	Returns the key reference type used by this cache.
String	getName()	Returns the cache name for debugging purposes.
String	getReferenceTypeKey()	Returns a string representation of the reference type combination.
Cache.ReferenceType	getValueReferenceType()	Returns the value reference type used by this cache.
boolean	isEmpty()
Set<K>	keySet()
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> m)
V	remove(Object key)
void	removeIf(BiPredicate<K,V> filter)
void	setEvictionListener(Cache.EvictionListener listener)	Sets an eviction listener to be notified of eviction events.
int	size()
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Method Details

setEvictionListener

public void setEvictionListener(Cache.EvictionListener listener)

Sets an eviction listener to be notified of eviction events.

computeIfAbsent

public V computeIfAbsent(K key,
 Function<? super K,? extends V> mappingFunction)

Specified by:

computeIfAbsent in interface Cache<K,V>

Specified by:

computeIfAbsent in interface Map<K,V>

computeIfAbsent

public V computeIfAbsent(K key,
 Function<? super K,? extends V> mappingFunction,
 Cache.ReferenceType referenceType)

Computes a value for the given key if it's not already present, using the specified reference type.

This method allows fine-grained control over the reference type used for individual entries, overriding the map's default reference type for this specific key-value pair.

Specified by:

computeIfAbsent in interface Cache<K,V>

Parameters:

key - the key whose associated value is to be returned or computed

mappingFunction - the function to compute a value

referenceType - the reference type to use for this entry (null uses map default)

Returns:

the current (existing or computed) value associated with the specified key

size

public int size()

Specified by:

size in interface Cache<K,V>

Specified by:

size in interface Map<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Cache<K,V>

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

get

public V get(Object key)

Specified by:

get in interface Cache<K,V>

Specified by:

get in interface Map<K,V>

put

public V put(K key,
 V value)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

removeIf

public void removeIf(BiPredicate<K,V> filter)

Specified by:

removeIf in interface Cache<K,V>

putAll

public void putAll(Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Cache<K,V>

Specified by:

clear in interface Map<K,V>

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

getKeyReferenceType

public Cache.ReferenceType getKeyReferenceType()

Returns the key reference type used by this cache.

getValueReferenceType

public Cache.ReferenceType getValueReferenceType()

Returns the value reference type used by this cache.

getReferenceTypeKey

public String getReferenceTypeKey()

Returns a string representation of the reference type combination.

getName

public String getName()

Returns the cache name for debugging purposes.