Constructor Detail

• @SuppressWarnings("unchecked") public ConcurrentLinkedHashMap.Builder()

Method Detail

• public ConcurrentLinkedHashMap<K, V> build()

  Creates a new ConcurrentLinkedHashMap instance.

  throws:

  IllegalStateException if the maximum weighted capacity was not set

• public Builder<K, V> concurrencyLevel(int concurrencyLevel)

  Specifies the estimated number of concurrently updating threads. The implementation performs internal sizing to try to accommodate this many threads (default 16).

  throws:

  IllegalArgumentException if the concurrencyLevel is less than or equal to zero

  Parameters:

  concurrencyLevel - the estimated number of concurrently updating threads

• public Builder<K, V> initialCapacity(int initialCapacity)

  Specifies the initial capacity of the hash table (default 16). This is the number of key-value pairs that the hash table can hold before a resize operation is required.

  throws:

  IllegalArgumentException if the initialCapacity is negative

  Parameters:

  initialCapacity - the initial capacity used to size the hash table to accommodate this many entries.

• public Builder<K, V> listener(EvictionListener<K, V> listener)

  Specifies an optional listener that is registered for notification when an entry is evicted.

  throws:

  NullPointerException if the listener is null

  Parameters:

  listener - the object to forward evicted entries to

• public Builder<K, V> maximumWeightedCapacity(long capacity)

  Specifies the maximum weighted capacity to coerce the map to and may exceed it temporarily.

  throws:

  IllegalArgumentException if the maximumWeightedCapacity is negative

  Parameters:

  capacity - the weighted threshold to bound the map by

• public Builder<K, V> weigher(Weigher<? super V> weigher)

  Specifies an algorithm to determine how many the units of capacity a value consumes. The default algorithm bounds the map by the number of key-value pairs by giving each entry a weight of 1.

  throws:

  NullPointerException if the weigher is null

  Parameters:

  weigher - the algorithm to determine a value's weight

• public Builder<K, V> weigher(EntryWeigher<? super K, ? super V> weigher)

  Specifies an algorithm to determine how many the units of capacity an entry consumes. The default algorithm bounds the map by the number of key-value pairs by giving each entry a weight of 1.

  throws:

  NullPointerException if the weigher is null

  Parameters:

  weigher - the algorithm to determine a entry's weight