com.google.gwt.dev.util.collect

Class IdentityMaps

java.lang.Object

com.google.gwt.dev.util.collect.IdentityMaps

public class IdentityMaps
extends Object

Utility methods for operating on memory-efficient maps. All maps of size 0 or 1 are assumed to be immutable. All maps of size greater than 1 are assumed to be mutable.

Constructor Summary

Constructors

Constructor and Description
IdentityMaps()

Method Summary

Modifier and Type	Method and Description
static <K,V> Map<K,V>	create()
static <K,V> Map<K,V>	create(K key, V value)
static <K,V> Map<K,V>	normalize(Map<K,V> map)
static <K,V> Map<K,V>	normalizeUnmodifiable(Map<K,V> map)
static <K,V> Map<K,V>	put(Map<K,V> map, K key, V value)
static <K,V> Map<K,V>	putAll(Map<K,V> map, Map<K,V> toAdd)
static <K,V> Map<K,V>	remove(Map<K,V> map, K key)

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

IdentityMaps

public IdentityMaps()

Method Detail

create

public static <K,V> Map<K,V> create()

create

public static <K,V> Map<K,V> create(K key,
                                    V value)

normalize

public static <K,V> Map<K,V> normalize(Map<K,V> map)

normalizeUnmodifiable

public static <K,V> Map<K,V> normalizeUnmodifiable(Map<K,V> map)

put

public static <K,V> Map<K,V> put(Map<K,V> map,
                                 K key,
                                 V value)

putAll

public static <K,V> Map<K,V> putAll(Map<K,V> map,
                                    Map<K,V> toAdd)

remove

public static <K,V> Map<K,V> remove(Map<K,V> map,
                                    K key)