K
- The key typeV
- The value typepublic static final class ConcurrentLinkedHashMap.Builder<K,V> extends Object
ConcurrentLinkedHashMap
instances. It
provides a flexible approach for constructing customized instances with
a named parameter syntax. It can be used in the following manner:
ConcurrentMap<Vertex, Set<Edge>> graph = new Builder<Vertex, Set<Edge>>()
.maximumWeightedCapacity(5000)
.weigher(Weighers.<Edge>set())
.build();
Constructor and Description |
---|
Builder()
Default constructor.
|
Modifier and Type | Method and Description |
---|---|
ConcurrentLinkedHashMap<K,V> |
build()
Creates a new
ConcurrentLinkedHashMap instance. |
ConcurrentLinkedHashMap.Builder<K,V> |
concurrencyLevel(int concurrencyLevel)
Specifies the estimated number of concurrently updating threads.
|
ConcurrentLinkedHashMap.Builder<K,V> |
initialCapacity(int initialCapacity)
Specifies the initial capacity of the hash table (default 16).
|
ConcurrentLinkedHashMap.Builder<K,V> |
listener(EvictionListener<K,V> listener)
Specifies an optional listener that is registered for notification when
an entry is evicted.
|
ConcurrentLinkedHashMap.Builder<K,V> |
maximumWeightedCapacity(long capacity)
Specifies the maximum weighted capacity to coerce the map to and may
exceed it temporarily.
|
ConcurrentLinkedHashMap.Builder<K,V> |
weigher(EntryWeigher<? super K,? super V> weigher)
Specifies an algorithm to determine how many the units of capacity an
entry consumes.
|
ConcurrentLinkedHashMap.Builder<K,V> |
weigher(Weigher<? super V> weigher)
Specifies an algorithm to determine how many the units of capacity a
value consumes.
|
public ConcurrentLinkedHashMap.Builder<K,V> initialCapacity(int initialCapacity)
initialCapacity
- the initial capacity used to size the hash table
to accommodate this many entries.IllegalArgumentException
- if the initialCapacity is negativepublic ConcurrentLinkedHashMap.Builder<K,V> maximumWeightedCapacity(long capacity)
capacity
- the weighted threshold to bound the map byIllegalArgumentException
- if the maximumWeightedCapacity is
negativepublic ConcurrentLinkedHashMap.Builder<K,V> concurrencyLevel(int concurrencyLevel)
concurrencyLevel
- the estimated number of concurrently updating
threadsIllegalArgumentException
- if the concurrencyLevel is less than or
equal to zeropublic ConcurrentLinkedHashMap.Builder<K,V> listener(EvictionListener<K,V> listener)
listener
- the object to forward evicted entries toNullPointerException
- if the listener is nullpublic ConcurrentLinkedHashMap.Builder<K,V> weigher(Weigher<? super V> weigher)
weigher
- the algorithm to determine a value's weightNullPointerException
- if the weigher is nullpublic ConcurrentLinkedHashMap.Builder<K,V> weigher(EntryWeigher<? super K,? super V> weigher)
weigher
- the algorithm to determine a entry's weightNullPointerException
- if the weigher is nullpublic ConcurrentLinkedHashMap<K,V> build()
ConcurrentLinkedHashMap
instance.IllegalStateException
- if the maximum weighted capacity was
not set