Class Maps

java.lang.Object

io.lacuna.bifurcan.Maps

public class Maps
extends Object

Utility functions for classes implementing IMap.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Maps.Entry<K,V>
static class	Maps.HashEntry<K,V>

Field Summary

Fields

Modifier and Type	Field	Description
static final BiPredicate	DEFAULT_EQUALS
static final ToLongFunction	DEFAULT_HASH_CODE
static final BinaryOperator	MERGE_LAST_WRITE_WINS

Constructor Summary

Constructors

Constructor	Description
Maps()

Method Summary

Modifier and Type	Method	Description
static <T, K, V> Collector<T,Map<K,V>,Map<K,V>>	collector(Function<T,K> keyFn, Function<T,V> valFn)
static <T, K, V> Collector<T,Map<K,V>,Map<K,V>>	collector(Function<T,K> keyFn, Function<T,V> valFn, BinaryOperator<V> mergeFn)
static <K, V> boolean	equals(IMap<K,V> a, IMap<K,V> b)
static <K, V> boolean	equals(IMap<K,V> a, IMap<K,V> b, BiPredicate<V,V> valEquals)
static <K> boolean	equivEquality(IMap<K,?> a, IMap<K,?> b)
static <K> boolean	equivEquality(IMap<K,?> a, ISet<K> b)
static <K, V> IMap<K,V>	from(ISet<K> keys, Function<K,V> lookup)
static <K, V> IMap<K,V>	from(ISet<K> keys, Function<K,V> lookup, Supplier<Iterator<IEntry<K,V>>> iterator)
static <K, V> ISortedMap<K,V>	from(ISortedSet<K> keys, Function<K,V> lookup)
static <K, V> ISortedMap<K,V>	from(ISortedSet<K> keys, Function<K,V> lookup, Supplier<Iterator<IEntry<K,V>>> iterator)
static <K, V> long	hash(IMap<K,V> m)
static <K, V> long	hash(IMap<K,V> m, ToLongFunction<IEntry<K,V>> hash, LongBinaryOperator combiner)
static <T, K, V> Collector<T,LinearMap<K,V>,LinearMap<K,V>>	linearCollector(Function<T,K> keyFn, Function<T,V> valFn)
static <T, K, V> Collector<T,LinearMap<K,V>,LinearMap<K,V>>	linearCollector(Function<T,K> keyFn, Function<T,V> valFn, int capacity)
static <T, K, V> Collector<T,LinearMap<K,V>,LinearMap<K,V>>	linearCollector(Function<T,K> keyFn, Function<T,V> valFn, BinaryOperator<V> mergeFn, int capacity)
static <K, V> Map.Entry<K,V>	toEntry(IEntry<K,V> entry)
static <K, V> Map<K,V>	toMap(IMap<K,V> map)
static <K, V> String	toString(IMap<K,V> m)
static <K, V> String	toString(IMap<K,V> m, Function<K,String> keyPrinter, Function<V,String> valPrinter)

Methods inherited from class java.lang.Object

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

Field Details

MERGE_LAST_WRITE_WINS

public static final BinaryOperator MERGE_LAST_WRITE_WINS

DEFAULT_HASH_CODE

public static final ToLongFunction DEFAULT_HASH_CODE

DEFAULT_EQUALS

public static final BiPredicate DEFAULT_EQUALS

Constructor Details

Maps

public Maps()

Method Details

toString

public static <K,
V> String toString(IMap<K,V> m)

toString

public static <K,
V> String toString(IMap<K,V> m,
 Function<K,String> keyPrinter,
 Function<V,String> valPrinter)

hash

public static <K,
V> long hash(IMap<K,V> m)

hash

public static <K,
V> long hash(IMap<K,V> m,
 ToLongFunction<IEntry<K,V>> hash,
 LongBinaryOperator combiner)

equals

public static <K,
V> boolean equals(IMap<K,V> a,
 IMap<K,V> b)

equals

public static <K,
V> boolean equals(IMap<K,V> a,
 IMap<K,V> b,
 BiPredicate<V,V> valEquals)

from

public static <K,
V> ISortedMap<K,V> from(ISortedSet<K> keys,
 Function<K,V> lookup)

from

public static <K,
V> ISortedMap<K,V> from(ISortedSet<K> keys,
 Function<K,V> lookup,
 Supplier<Iterator<IEntry<K,V>>> iterator)

from

public static <K,
V> IMap<K,V> from(ISet<K> keys,
 Function<K,V> lookup)

from

public static <K,
V> IMap<K,V> from(ISet<K> keys,
 Function<K,V> lookup,
 Supplier<Iterator<IEntry<K,V>>> iterator)

toMap

public static <K,
V> Map<K,V> toMap(IMap<K,V> map)

toEntry

public static <K,
V> Map.Entry<K,V> toEntry(IEntry<K,V> entry)

equivEquality

public static <K> boolean equivEquality(IMap<K,?> a,
 IMap<K,?> b)

equivEquality

public static <K> boolean equivEquality(IMap<K,?> a,
 ISet<K> b)

linearCollector

public static <T,
K,
V>
Collector<T,LinearMap<K,V>,LinearMap<K,V>> linearCollector(Function<T,K> keyFn,
 Function<T,V> valFn,
 int capacity)

linearCollector

public static <T,
K,
V>
Collector<T,LinearMap<K,V>,LinearMap<K,V>> linearCollector(Function<T,K> keyFn,
 Function<T,V> valFn)

linearCollector

public static <T,
K,
V>
Collector<T,LinearMap<K,V>,LinearMap<K,V>> linearCollector(Function<T,K> keyFn,
 Function<T,V> valFn,
 BinaryOperator<V> mergeFn,
 int capacity)

collector

public static <T,
K,
V>
Collector<T,Map<K,V>,Map<K,V>> collector(Function<T,K> keyFn,
 Function<T,V> valFn)

collector

public static <T,
K,
V>
Collector<T,Map<K,V>,Map<K,V>> collector(Function<T,K> keyFn,
 Function<T,V> valFn,
 BinaryOperator<V> mergeFn)