Package org.eclipse.collections.api

Interface ParallelIterable<T>

All Known Subinterfaces:

ParallelBag<T>, ParallelListIterable<T>, ParallelSetIterable<T>, ParallelSortedBag<T>, ParallelSortedSetIterable<T>, ParallelUnsortedBag<T>, ParallelUnsortedSetIterable<T>

public interface ParallelIterable<T>

A ParallelIterable is RichIterable which will defer evaluation for certain methods like select, reject, collect, etc. Any methods that do not return a ParallelIterable when called will cause evaluation to be forced. Evaluation occurs in parallel. All code blocks passed in must be stateless or thread-safe.

Since:

5.0

Method Summary

Modifier and Type	Method	Description
<K,V> MapIterable<K,V>	aggregateBy(Function<? super T,? extends K> groupBy, Function0<? extends V> zeroValueFactory, Function2<? super V,? super T,? extends V> nonMutatingAggregator)
<K,V> MapIterable<K,V>	aggregateInPlaceBy(Function<? super T,? extends K> groupBy, Function0<? extends V> zeroValueFactory, Procedure2<? super V,? super T> mutatingAggregator)
boolean	allSatisfy(Predicate<? super T> predicate)
<P> boolean	allSatisfyWith(Predicate2<? super T,? super P> predicate, P parameter)
boolean	anySatisfy(Predicate<? super T> predicate)
<P> boolean	anySatisfyWith(Predicate2<? super T,? super P> predicate, P parameter)
default void	appendString(Appendable appendable)
default void	appendString(Appendable appendable, String separator)
void	appendString(Appendable appendable, String start, String separator, String end)
ParallelIterable<T>	asUnique()
<V> ParallelIterable<V>	collect(Function<? super T,? extends V> function)	Creates a parallel iterable for collecting elements from the current iterable.
<V> ParallelIterable<V>	collectIf(Predicate<? super T> predicate, Function<? super T,? extends V> function)	Creates a parallel iterable for selecting and collecting elements from the current iterable.
<P,V> ParallelIterable<V>	collectWith(Function2<? super T,? super P,? extends V> function, P parameter)
int	count(Predicate<? super T> predicate)
<P> int	countWith(Predicate2<? super T,? super P> predicate, P parameter)
T	detect(Predicate<? super T> predicate)
T	detectIfNone(Predicate<? super T> predicate, Function0<? extends T> function)
<P> T	detectWith(Predicate2<? super T,? super P> predicate, P parameter)
<P> T	detectWithIfNone(Predicate2<? super T,? super P> predicate, P parameter, Function0<? extends T> function)
<V> ParallelIterable<V>	flatCollect(Function<? super T,? extends Iterable<V>> function)	Creates a parallel flattening iterable for the current iterable.
void	forEach(Procedure<? super T> procedure)
<P> void	forEachWith(Procedure2<? super T,? super P> procedure, P parameter)
<V> Multimap<V,T>	groupBy(Function<? super T,? extends V> function)
<V> Multimap<V,T>	groupByEach(Function<? super T,? extends Iterable<V>> function)
<V> MapIterable<V,T>	groupByUniqueKey(Function<? super T,? extends V> function)
default String	makeString()
default String	makeString(String separator)
default String	makeString(String start, String separator, String end)
default String	makeString(Function<? super T,Object> function, String start, String separator, String end)
T	max()
T	max(Comparator<? super T> comparator)
<V extends Comparable<? super V>> T	maxBy(Function<? super T,? extends V> function)
T	min()
T	min(Comparator<? super T> comparator)
<V extends Comparable<? super V>> T	minBy(Function<? super T,? extends V> function)
boolean	noneSatisfy(Predicate<? super T> predicate)
<P> boolean	noneSatisfyWith(Predicate2<? super T,? super P> predicate, P parameter)
ParallelIterable<T>	reject(Predicate<? super T> predicate)	Creates a parallel iterable for rejecting elements from the current iterable.
<P> ParallelIterable<T>	rejectWith(Predicate2<? super T,? super P> predicate, P parameter)
ParallelIterable<T>	select(Predicate<? super T> predicate)	Creates a parallel iterable for selecting elements from the current iterable.
<S> ParallelIterable<S>	selectInstancesOf(Class<S> clazz)
<P> ParallelIterable<T>	selectWith(Predicate2<? super T,? super P> predicate, P parameter)
double	sumOfDouble(DoubleFunction<? super T> function)	Returns the final double result of evaluating function for each element of the iterable in parallel and adding the results together.
double	sumOfFloat(FloatFunction<? super T> function)	Returns the final double result of evaluating function for each element of the iterable in parallel and adding the results together.
long	sumOfInt(IntFunction<? super T> function)	Returns the final long result of evaluating function for each element of the iterable in parallel and adding the results together.
long	sumOfLong(LongFunction<? super T> function)	Returns the final long result of evaluating function for each element of the iterable in parallel and adding the results together.
default Object[]	toArray()
<T1> T1[]	toArray(T1[] target)
MutableBag<T>	toBag()
MutableList<T>	toList()
<NK,NV> MutableMap<NK,NV>	toMap(Function<? super T,? extends NK> keyFunction, Function<? super T,? extends NV> valueFunction)
MutableSet<T>	toSet()
MutableSortedBag<T>	toSortedBag()
MutableSortedBag<T>	toSortedBag(Comparator<? super T> comparator)
<V extends Comparable<? super V>> MutableSortedBag<T>	toSortedBagBy(Function<? super T,? extends V> function)
default MutableList<T>	toSortedList()
MutableList<T>	toSortedList(Comparator<? super T> comparator)
<V extends Comparable<? super V>> MutableList<T>	toSortedListBy(Function<? super T,? extends V> function)
<NK,NV> MutableSortedMap<NK,NV>	toSortedMap(Comparator<? super NK> comparator, Function<? super T,? extends NK> keyFunction, Function<? super T,? extends NV> valueFunction)
<NK,NV> MutableSortedMap<NK,NV>	toSortedMap(Function<? super T,? extends NK> keyFunction, Function<? super T,? extends NV> valueFunction)
MutableSortedSet<T>	toSortedSet()
MutableSortedSet<T>	toSortedSet(Comparator<? super T> comparator)
<V extends Comparable<? super V>> MutableSortedSet<T>	toSortedSetBy(Function<? super T,? extends V> function)

Method Detail

asUnique

ParallelIterable<T> asUnique()

select

ParallelIterable<T> select(Predicate<? super T> predicate)

Creates a parallel iterable for selecting elements from the current iterable.

selectWith

<P> ParallelIterable<T> selectWith(Predicate2<? super T,? super P> predicate,
                                   P parameter)

selectInstancesOf

<S> ParallelIterable<S> selectInstancesOf(Class<S> clazz)

reject

ParallelIterable<T> reject(Predicate<? super T> predicate)

Creates a parallel iterable for rejecting elements from the current iterable.

rejectWith

<P> ParallelIterable<T> rejectWith(Predicate2<? super T,? super P> predicate,
                                   P parameter)

collect

<V> ParallelIterable<V> collect(Function<? super T,? extends V> function)

Creates a parallel iterable for collecting elements from the current iterable.

collectWith

<P,V> ParallelIterable<V> collectWith(Function2<? super T,? super P,? extends V> function,
                                            P parameter)

collectIf

<V> ParallelIterable<V> collectIf(Predicate<? super T> predicate,
                                  Function<? super T,? extends V> function)

Creates a parallel iterable for selecting and collecting elements from the current iterable.

flatCollect

<V> ParallelIterable<V> flatCollect(Function<? super T,? extends Iterable<V>> function)

Creates a parallel flattening iterable for the current iterable.

forEach

void forEach(Procedure<? super T> procedure)

forEachWith

<P> void forEachWith(Procedure2<? super T,? super P> procedure,
                     P parameter)

detect

T detect(Predicate<? super T> predicate)

detectWith

<P> T detectWith(Predicate2<? super T,? super P> predicate,
                 P parameter)

detectIfNone

T detectIfNone(Predicate<? super T> predicate,
               Function0<? extends T> function)

detectWithIfNone

<P> T detectWithIfNone(Predicate2<? super T,? super P> predicate,
                       P parameter,
                       Function0<? extends T> function)

count

int count(Predicate<? super T> predicate)

countWith

<P> int countWith(Predicate2<? super T,? super P> predicate,
                  P parameter)

anySatisfy

boolean anySatisfy(Predicate<? super T> predicate)

anySatisfyWith

<P> boolean anySatisfyWith(Predicate2<? super T,? super P> predicate,
                           P parameter)

allSatisfy

boolean allSatisfy(Predicate<? super T> predicate)

allSatisfyWith

<P> boolean allSatisfyWith(Predicate2<? super T,? super P> predicate,
                           P parameter)

noneSatisfy

boolean noneSatisfy(Predicate<? super T> predicate)

noneSatisfyWith

<P> boolean noneSatisfyWith(Predicate2<? super T,? super P> predicate,
                            P parameter)

toList

MutableList<T> toList()

toSortedList

default MutableList<T> toSortedList()

toSortedList

MutableList<T> toSortedList(Comparator<? super T> comparator)

toSortedListBy

<V extends Comparable<? super V>> MutableList<T> toSortedListBy(Function<? super T,? extends V> function)

toSet

MutableSet<T> toSet()

toSortedSet

MutableSortedSet<T> toSortedSet()

toSortedSet

MutableSortedSet<T> toSortedSet(Comparator<? super T> comparator)

toSortedSetBy

<V extends Comparable<? super V>> MutableSortedSet<T> toSortedSetBy(Function<? super T,? extends V> function)

toBag

MutableBag<T> toBag()

toSortedBag

MutableSortedBag<T> toSortedBag()

toSortedBag

MutableSortedBag<T> toSortedBag(Comparator<? super T> comparator)

toSortedBagBy

<V extends Comparable<? super V>> MutableSortedBag<T> toSortedBagBy(Function<? super T,? extends V> function)

toMap

<NK,NV> MutableMap<NK,NV> toMap(Function<? super T,? extends NK> keyFunction,
                                            Function<? super T,? extends NV> valueFunction)

toSortedMap

<NK,NV> MutableSortedMap<NK,NV> toSortedMap(Function<? super T,? extends NK> keyFunction,
                                                        Function<? super T,? extends NV> valueFunction)

toSortedMap

<NK,NV> MutableSortedMap<NK,NV> toSortedMap(Comparator<? super NK> comparator,
                                                        Function<? super T,? extends NK> keyFunction,
                                                        Function<? super T,? extends NV> valueFunction)

toArray

default Object[] toArray()

toArray

<T1> T1[] toArray(T1[] target)

min

T min(Comparator<? super T> comparator)

max

T max(Comparator<? super T> comparator)

min

T min()

max

T max()

minBy

<V extends Comparable<? super V>> T minBy(Function<? super T,? extends V> function)

maxBy

<V extends Comparable<? super V>> T maxBy(Function<? super T,? extends V> function)

sumOfInt

long sumOfInt(IntFunction<? super T> function)

Returns the final long result of evaluating function for each element of the iterable in parallel and adding the results together.

Since:

6.0

sumOfFloat

double sumOfFloat(FloatFunction<? super T> function)

Returns the final double result of evaluating function for each element of the iterable in parallel and adding the results together. It uses Kahan summation algorithm to reduce numerical error.

Since:

6.0

sumOfLong

long sumOfLong(LongFunction<? super T> function)

Returns the final long result of evaluating function for each element of the iterable in parallel and adding the results together.

Since:

6.0

sumOfDouble

double sumOfDouble(DoubleFunction<? super T> function)

Returns the final double result of evaluating function for each element of the iterable in parallel and adding the results together. It uses Kahan summation algorithm to reduce numerical error.

Since:

6.0

makeString

default String makeString()

makeString

default String makeString(String separator)

makeString

default String makeString(String start,
                          String separator,
                          String end)

makeString

default String makeString(Function<? super T,Object> function,
                          String start,
                          String separator,
                          String end)

appendString

default void appendString(Appendable appendable)

appendString

default void appendString(Appendable appendable,
                          String separator)

appendString

void appendString(Appendable appendable,
                  String start,
                  String separator,
                  String end)

groupBy

<V> Multimap<V,T> groupBy(Function<? super T,? extends V> function)

groupByEach

<V> Multimap<V,T> groupByEach(Function<? super T,? extends Iterable<V>> function)

groupByUniqueKey

<V> MapIterable<V,T> groupByUniqueKey(Function<? super T,? extends V> function)

aggregateInPlaceBy

<K,V> MapIterable<K,V> aggregateInPlaceBy(Function<? super T,? extends K> groupBy,
                                                      Function0<? extends V> zeroValueFactory,
                                                      Procedure2<? super V,? super T> mutatingAggregator)

aggregateBy

<K,V> MapIterable<K,V> aggregateBy(Function<? super T,? extends K> groupBy,
                                               Function0<? extends V> zeroValueFactory,
                                               Function2<? super V,? super T,? extends V> nonMutatingAggregator)