com.google.common.collect

Class Platform

java.lang.Object

com.google.common.collect.Platform

@GwtCompatible(emulated=true)
final class Platform
extends java.lang.Object

Methods factored out so that they can be emulated differently in GWT.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Platform()

Method Summary

Modifier and Type	Method and Description
(package private) static <K,V> java.util.SortedMap<K,V>	mapsAsMapSortedSet(java.util.SortedSet<K> set, Function<? super K,V> function)
(package private) static <K,V> java.util.SortedMap<K,V>	mapsFilterSortedMap(java.util.SortedMap<K,V> map, Predicate<? super java.util.Map.Entry<K,V>> predicate)
(package private) static <K,V1,V2> java.util.SortedMap<K,V2>	mapsTransformEntriesSortedMap(java.util.SortedMap<K,V1> fromMap, Maps.EntryTransformer<? super K,? super V1,V2> transformer)
(package private) static <T> T[]	newArray(T[] reference, int length) Returns a new array of the given length with the same type as a reference array.
(package private) static <E> java.util.Set<E>	newSetFromMap(java.util.Map<E,java.lang.Boolean> map)
(package private) static <E> java.util.SortedSet<E>	setsFilterSortedSet(java.util.SortedSet<E> set, Predicate<? super E> predicate)
(package private) static MapMaker	tryWeakKeys(MapMaker mapMaker) Configures the given map maker to use weak keys, if possible; does nothing otherwise (i.e., in GWT).

Methods inherited from class java.lang.Object

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

Constructor Detail

Platform

private Platform()

Method Detail

newArray

static <T> T[] newArray(T[] reference,
                        int length)

Returns a new array of the given length with the same type as a reference array.

Parameters:

reference - any array of the desired type

length - the length of the new array

newSetFromMap

static <E> java.util.Set<E> newSetFromMap(java.util.Map<E,java.lang.Boolean> map)

tryWeakKeys

static MapMaker tryWeakKeys(MapMaker mapMaker)

Configures the given map maker to use weak keys, if possible; does nothing otherwise (i.e., in GWT). This is sometimes acceptable, when only server-side code could generate enough volume that reclamation becomes important.

mapsTransformEntriesSortedMap

static <K,V1,V2> java.util.SortedMap<K,V2> mapsTransformEntriesSortedMap(java.util.SortedMap<K,V1> fromMap,
                                                                         Maps.EntryTransformer<? super K,? super V1,V2> transformer)

mapsAsMapSortedSet

static <K,V> java.util.SortedMap<K,V> mapsAsMapSortedSet(java.util.SortedSet<K> set,
                                                         Function<? super K,V> function)

setsFilterSortedSet

static <E> java.util.SortedSet<E> setsFilterSortedSet(java.util.SortedSet<E> set,
                                                      Predicate<? super E> predicate)

mapsFilterSortedMap

static <K,V> java.util.SortedMap<K,V> mapsFilterSortedMap(java.util.SortedMap<K,V> map,
                                                          Predicate<? super java.util.Map.Entry<K,V>> predicate)