org.hibernate.search.util.impl

Class Maps

java.lang.Object

org.hibernate.search.util.impl.Maps

public class Maps
extends Object

Helper class to create maps with commonly needed constructors.

Author:

Sanne Grinovero

Method Summary

Modifier and Type	Method and Description
static <K,V> ConcurrentMap<K,V>	createIdentityWeakKeyConcurrentMap(int initialSize, int concurrencyLevel) Creates a ConcurrentMap using weak references to keys, so that garbage collection of the key allows to remove the value from the map.

Methods inherited from class java.lang.Object

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

Method Detail

createIdentityWeakKeyConcurrentMap

public static <K,V> ConcurrentMap<K,V> createIdentityWeakKeyConcurrentMap(int initialSize,
                                                                          int concurrencyLevel)

Creates a ConcurrentMap using weak references to keys, so that garbage collection of the key allows to remove the value from the map. Comparison on the keys is based on identity reference.

Type Parameters:

K - the key type in the map

V - the value type in the map

Parameters:

initialSize - for tuning of the initial size of the Map

concurrencyLevel - the estimated number of concurrently updating threads. The implementation performs internal sizing to try to accommodate this many threads.

Returns:

a new concurrent map with the properties described above.