de.flapdoodle.guava

Class Transformations

java.lang.Object

de.flapdoodle.guava.Transformations

public abstract class Transformations
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
static <V> com.google.common.base.Function<V,Collection<? extends V>>	asCollection()
static <S,D> com.google.common.base.Function<S,Collection<? extends D>>	asCollection(com.google.common.base.Function<S,D> transformation)
static <T> Collection<T>	emptyIfNull(Collection<T> source)
static <T> com.google.common.base.Optional<T>	firstOf(Collection<T> collections)
static <T> Collection<T>	firstOf(Collection<T> collections, int items)
static <T> com.google.common.collect.ImmutableList<? extends T>	flatmap(Collection<? extends Collection<? extends T>> collections)
static <S,D,C extends Collection<? extends D>> com.google.common.collect.ImmutableList<? extends D>	flatmap(Collection<? extends S> source, com.google.common.base.Function<? super S,C> transformation)
static <T> com.google.common.collect.ImmutableList<? extends T>	flatmap(Collection<? extends T> collection, Collection<? extends T> otherCollection, Collection<? extends T>... collections)
static <S,D,C extends Iterable<? extends D>> Iterable<? extends D>	flatmap(Iterable<? extends S> source, com.google.common.base.Function<? super S,C> transformation)
static <K extends Enum<K>,T> EnumMap<K,T>	map(Class<K> enumType, Collection<T> collection, com.google.common.base.Function<? super T,K> keytransformation)
static <K extends Enum<K>,V,T> EnumMap<K,V>	map(Class<K> enumType, Collection<T> collection, com.google.common.base.Function<? super T,K> keyTransformation, Foldleft<? super T,V> valueFold)
static <K extends Enum<K>,V,T> EnumMap<K,V>	map(Class<K> enumType, Collection<T> collection, com.google.common.base.Function<? super T,K> keyTransformation, com.google.common.base.Function<? super T,V> valueTransformation)
static <K,V> Map<K,V>	map(Collection<Pair<K,V>> pairs)
static <K,T> Map<K,T>	map(Collection<T> collection, com.google.common.base.Function<? super T,K> keytransformation)
static <K,V,T> Map<K,V>	map(Collection<T> collection, com.google.common.base.Function<? super T,K> keyTransformation, Foldleft<? super T,V> valueFold)
static <K,V,T> Map<K,V>	map(Collection<T> collection, com.google.common.base.Function<? super T,K> keyTransformation, com.google.common.base.Function<? super T,V> valueTransformation)
static <A,B> com.google.common.base.Predicate<B>	map(com.google.common.base.Predicate<A> predicate, com.google.common.base.Function<B,A> transformation)
static <V> com.google.common.base.Function<V,V>	noop()
static <T> Partition<T>	partition(Collection<T> collection, com.google.common.base.Predicate<? super T> filter)
static <T> Partition<T>	split(Collection<T> source, int index)
static <A,B> Collection<Pair<A,B>>	zip(Iterable<A> a, Iterable<B> b)
static <A,B> Collection<Pair<A,B>>	zip(Iterator<A> a, Iterator<B> b)

Methods inherited from class java.lang.Object

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

Method Detail

emptyIfNull

public static <T> Collection<T> emptyIfNull(Collection<T> source)

flatmap

public static <S,D,C extends Collection<? extends D>> com.google.common.collect.ImmutableList<? extends D> flatmap(Collection<? extends S> source,
                                                                                                   com.google.common.base.Function<? super S,C> transformation)

flatmap

public static <S,D,C extends Iterable<? extends D>> Iterable<? extends D> flatmap(Iterable<? extends S> source,
                                                                  com.google.common.base.Function<? super S,C> transformation)

flatmap

public static <T> com.google.common.collect.ImmutableList<? extends T> flatmap(Collection<? extends Collection<? extends T>> collections)

flatmap

public static <T> com.google.common.collect.ImmutableList<? extends T> flatmap(Collection<? extends T> collection,
                                                               Collection<? extends T> otherCollection,
                                                               Collection<? extends T>... collections)

map

public static <K,V> Map<K,V> map(Collection<Pair<K,V>> pairs)

map

public static <K,T> Map<K,T> map(Collection<T> collection,
                 com.google.common.base.Function<? super T,K> keytransformation)

map

public static <K,V,T> Map<K,V> map(Collection<T> collection,
                   com.google.common.base.Function<? super T,K> keyTransformation,
                   com.google.common.base.Function<? super T,V> valueTransformation)

map

public static <K,V,T> Map<K,V> map(Collection<T> collection,
                   com.google.common.base.Function<? super T,K> keyTransformation,
                   Foldleft<? super T,V> valueFold)

map

public static <K extends Enum<K>,T> EnumMap<K,T> map(Class<K> enumType,
                                     Collection<T> collection,
                                     com.google.common.base.Function<? super T,K> keytransformation)

map

public static <K extends Enum<K>,V,T> EnumMap<K,V> map(Class<K> enumType,
                                       Collection<T> collection,
                                       com.google.common.base.Function<? super T,K> keyTransformation,
                                       com.google.common.base.Function<? super T,V> valueTransformation)

map

public static <K extends Enum<K>,V,T> EnumMap<K,V> map(Class<K> enumType,
                                       Collection<T> collection,
                                       com.google.common.base.Function<? super T,K> keyTransformation,
                                       Foldleft<? super T,V> valueFold)

map

public static <A,B> com.google.common.base.Predicate<B> map(com.google.common.base.Predicate<A> predicate,
                                            com.google.common.base.Function<B,A> transformation)

firstOf

public static <T> Collection<T> firstOf(Collection<T> collections,
                        int items)

firstOf

public static <T> com.google.common.base.Optional<T> firstOf(Collection<T> collections)

partition

public static <T> Partition<T> partition(Collection<T> collection,
                         com.google.common.base.Predicate<? super T> filter)

split

public static <T> Partition<T> split(Collection<T> source,
                     int index)

zip

public static <A,B> Collection<Pair<A,B>> zip(Iterable<A> a,
                              Iterable<B> b)

zip

public static <A,B> Collection<Pair<A,B>> zip(Iterator<A> a,
                              Iterator<B> b)

noop

public static <V> com.google.common.base.Function<V,V> noop()

asCollection

public static <V> com.google.common.base.Function<V,Collection<? extends V>> asCollection()

asCollection

public static <S,D> com.google.common.base.Function<S,Collection<? extends D>> asCollection(com.google.common.base.Function<S,D> transformation)