jodd.util.collection

Class ClassMap<V>

java.lang.Object

jodd.util.collection.ClassMap<V>

public final class ClassMap<V>
extends java.lang.Object

Storage for holding classes keys and values. It is NOT a Map instance. It is very fast on un-synchronized lookups, faster then HashMap. Uses identity for checking if Class keys are equal.

The initial version of this class was provided by @zqq90, from WebIt-script project. Thank you!

Constructor Summary

Constructors

Constructor and Description
ClassMap()
ClassMap(int initialCapacity) Creates new map with given initial capacity.

Method Summary

Modifier and Type	Method and Description
void	clear() Clears the class map.
V	get(java.lang.Class key) Returns a value associated to a key in thread-safe way.
V	put(java.lang.Class key, V value) Associates the specified value with the specified Class in this map.
int	size() Returns total number of stored classes.
V	unsafeGet(java.lang.Class key) Returns a value associated to a key in unsafe, but very fast way.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassMap

public ClassMap(int initialCapacity)

Creates new map with given initial capacity.

ClassMap

public ClassMap()

Method Detail

size

public int size()

Returns total number of stored classes.

unsafeGet

public V unsafeGet(java.lang.Class key)

Returns a value associated to a key in unsafe, but very fast way.

get

public V get(java.lang.Class key)

Returns a value associated to a key in thread-safe way.

put

public V put(java.lang.Class key,
             V value)

Associates the specified value with the specified Class in this map. Returns the previous value associated with key, or null if there was no mapping for key.

clear

public void clear()

Clears the class map.