oracle.javatools.util

Class Maps.StrongLinkedHashMap<K,V>

java.lang.Object

oracle.javatools.util.Maps.AbstractHashMap<K,V,E>

oracle.javatools.util.Maps.AbstractLinkedHashMap<K,V,Maps.StrongLinkedEntry<K,V>>

oracle.javatools.util.Maps.StrongLinkedHashMap<K,V>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map<K,V>

Enclosing class:

Maps

public static class Maps.StrongLinkedHashMap<K,V>
extends Maps.AbstractLinkedHashMap<K,V,Maps.StrongLinkedEntry<K,V>>

The default implementation of Maps.AbstractLinkedHashMap, based on Maps.StrongLinkedEntry. Maps.StrongLinkedHashMap is a drop-in replacement for LinkedHashMap which additionally exposes the subclass hooks provided by Maps.AbstractHashMap.

See Also:

LinkedHashMap, Serialized Form

Nested Class Summary

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

java.util.Map.Entry<K,V>

Field Summary

Fields inherited from class oracle.javatools.util.Maps.AbstractHashMap

DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR, MAXIMUM_CAPACITY

Constructor Summary

Constructors

Constructor and Description
StrongLinkedHashMap() Constructs an empty insertion-ordered map with default capacity and load factor.
StrongLinkedHashMap(int initialCapacity) Constructs an empty insertion-ordered map with specified initial capacity and default load factor.
StrongLinkedHashMap(int initialCapacity, float loadFactor) Constructs an empty insertion-ordered map with specified initial capacity and load factor.
StrongLinkedHashMap(int initialCapacity, float loadFactor, boolean accessOrder) Constructs an empty map with specified initial capacity, load factor, and iteration order.
StrongLinkedHashMap(java.util.Map<? extends K,? extends V> map) Constructs an insertion-ordered map with specified initial mappings, initial capacity based on the number of initial mappings, and default load factor.

Method Summary

Modifier and Type	Method and Description
protected Maps.StrongLinkedEntry<K,V>	createEntry(int hash, K key, V value, Maps.StrongLinkedEntry<K,V> next) Creates an entry for this map.

Methods inherited from class oracle.javatools.util.Maps.AbstractLinkedHashMap

clear, createEntryIterator, createEntrySetIterator, createKeySetIterator, createValuesIterator, entryEvicted, evict, evictEntry, getEldestEntry, mapChanged, removeEldestEntry, transfer

Methods inherited from class oracle.javatools.util.Maps.AbstractHashMap

addEntry, capacity, change, clone, containsKey, containsValue, entryAccessed, entryAdded, entryChanged, entryPurged, entryRemoved, entrySet, equals, get, getChangeCount, getEntry, getQueue, hashCode, isEmpty, keyEquals, keyHashCode, keySet, loadFactor, mapConstructed, mapInitialized, purge, purgeEntry, put, putAll, remove, removeExistingEntry, removeKey, size, toString, valueEquals, valueHashCode, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

StrongLinkedHashMap

public StrongLinkedHashMap()

Constructs an empty insertion-ordered map with default capacity and load factor.

See Also:

Maps.AbstractHashMap.DEFAULT_INITIAL_CAPACITY, Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR

StrongLinkedHashMap

public StrongLinkedHashMap(int initialCapacity)

Constructs an empty insertion-ordered map with specified initial capacity and default load factor.

Parameters:

initialCapacity - the initial capacity.

Throws:

java.lang.IllegalArgumentException - if the initial capacity is negative.

See Also:

Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR

StrongLinkedHashMap

public StrongLinkedHashMap(int initialCapacity,
                           float loadFactor)

Constructs an empty insertion-ordered map with specified initial capacity and load factor.

Parameters:

initialCapacity - the initial capacity.

loadFactor - the load factor.

Throws:

java.lang.IllegalArgumentException - if the initial capacity is negative or the load factor is nonpositive.

StrongLinkedHashMap

public StrongLinkedHashMap(java.util.Map<? extends K,? extends V> map)

Constructs an insertion-ordered map with specified initial mappings, initial capacity based on the number of initial mappings, and default load factor.

Parameters:

map - A map providing initial mappings.

Throws:

java.lang.NullPointerException - if the specified map is null.

See Also:

Maps.AbstractHashMap.DEFAULT_LOAD_FACTOR

StrongLinkedHashMap

public StrongLinkedHashMap(int initialCapacity,
                           float loadFactor,
                           boolean accessOrder)

Constructs an empty map with specified initial capacity, load factor, and iteration order.

Parameters:

initialCapacity - the initial capacity.

loadFactor - the load factor.

accessOrder - true if iteration is access-ordered, false if insertion-ordered.

Throws:

java.lang.IllegalArgumentException - if the initial capacity is negative or the load factor is nonpositive.

Method Detail

createEntry

protected Maps.StrongLinkedEntry<K,V> createEntry(int hash,
                                                  K key,
                                                  V value,
                                                  Maps.StrongLinkedEntry<K,V> next)

Creates an entry for this map.

The Maps.StrongLinkedHashMap implementation creates Maps.StrongLinkedEntry entries.

Specified by:

createEntry in class Maps.AbstractHashMap<K,V,Maps.StrongLinkedEntry<K,V>>

Parameters:

hash - The hashCode of the key for this entry.

key - The key for this entry.

value - The value for this entry.

next - The entry to follow this entry in the entry chain.