InternalIterable<T>
, Iterable<T>
, RichIterable<T>
FixedSizeList<T>
, ImmutableList<T>
, ImmutableOrderedMap<K,V>
, ImmutableSortedBag<T>
, ImmutableSortedMap<K,V>
, ImmutableSortedSet<T>
, ImmutableStack<T>
, ListIterable<T>
, MultiReaderList<T>
, MutableList<T>
, MutableOrderedMap<K,V>
, MutableSortedBag<T>
, MutableSortedMap<K,V>
, MutableSortedSet<T>
, MutableStack<T>
, OrderedMap<K,V>
, ReversibleIterable<T>
, SortedBag<T>
, SortedIterable<T>
, SortedMapIterable<K,V>
, SortedSetIterable<T>
, StackIterable<T>
AbstractArrayAdapter
, AbstractImmutableSortedMap
, AbstractListAdapter
, AbstractMemoryEfficientMutableList
, AbstractMutableList
, AbstractMutableSortedBag
, AbstractMutableSortedMap
, ArrayAdapter
, ArrayListAdapter
, ArrayStack
, CompositeFastList
, FastList
, ImmutableTreeMap
, ListAdapter
, MultiReaderFastList
, OrderedMapAdapter
, RandomAccessListAdapter
, SortedMapAdapter
, SortedSetAdapter
, SynchronizedMutableList
, SynchronizedSortedBag
, SynchronizedSortedMap
, SynchronizedSortedSet
, SynchronizedStack
, TreeBag
, TreeSortedMap
, TreeSortedSet
, UnmodifiableMutableList
, UnmodifiableMutableOrderedMap
, UnmodifiableSortedBag
, UnmodifiableSortedSet
, UnmodifiableStack
, UnmodifiableTreeMap
public interface OrderedIterable<T> extends RichIterable<T>
Modifier and Type | Method | Description |
---|---|---|
<V> OrderedIterable<V> |
collect(Function<? super T,? extends V> function) |
Returns a new collection with the results of applying the specified function on each element of the source
collection.
|
OrderedBooleanIterable |
collectBoolean(BooleanFunction<? super T> booleanFunction) |
Returns a new primitive
boolean iterable with the results of applying the specified function on each element
of the source collection. |
OrderedByteIterable |
collectByte(ByteFunction<? super T> byteFunction) |
Returns a new primitive
byte iterable with the results of applying the specified function on each element
of the source collection. |
OrderedCharIterable |
collectChar(CharFunction<? super T> charFunction) |
Returns a new primitive
char iterable with the results of applying the specified function on each element
of the source collection. |
OrderedDoubleIterable |
collectDouble(DoubleFunction<? super T> doubleFunction) |
Returns a new primitive
double iterable with the results of applying the specified function on each element
of the source collection. |
OrderedFloatIterable |
collectFloat(FloatFunction<? super T> floatFunction) |
Returns a new primitive
float iterable with the results of applying the specified function on each element
of the source collection. |
<V> OrderedIterable<V> |
collectIf(Predicate<? super T> predicate,
Function<? super T,? extends V> function) |
Returns a new collection with the results of applying the specified function on each element of the source
collection, but only for those elements which return true upon evaluation of the predicate.
|
OrderedIntIterable |
collectInt(IntFunction<? super T> intFunction) |
Returns a new primitive
int iterable with the results of applying the specified function on each element
of the source collection. |
OrderedLongIterable |
collectLong(LongFunction<? super T> longFunction) |
Returns a new primitive
long iterable with the results of applying the specified function on each element
of the source collection. |
OrderedShortIterable |
collectShort(ShortFunction<? super T> shortFunction) |
Returns a new primitive
short iterable with the results of applying the specified function on each element
of the source collection. |
<P,V> OrderedIterable<V> |
collectWith(Function2<? super T,? super P,? extends V> function,
P parameter) |
Same as
RichIterable.collect(Function) with a Function2 and specified parameter which is passed to the block. |
default <V> OrderedIterable<V> |
collectWithIndex(ObjectIntToObjectFunction<? super T,? extends V> function) |
Returns a new OrderedIterable using results obtained by applying the specified function to each element
and its corresponding index.
|
default <V,R extends Collection<V>> |
collectWithIndex(ObjectIntToObjectFunction<? super T,? extends V> function,
R target) |
Adds elements to the target Collection using results obtained by applying the specified function to each element
and its corresponding index.
|
<S> boolean |
corresponds(OrderedIterable<S> other,
Predicate2<? super T,? super S> predicate) |
Returns true if both OrderedIterables have the same length
and
predicate returns true for all corresponding elements e1 of
this OrderedIterable and e2 of other . |
int |
detectIndex(Predicate<? super T> predicate) |
Returns the index of the first element of the
OrderedIterable for which the predicate evaluates to true. |
OrderedIterable<T> |
distinct() |
Returns a new
OrderedIterable containing the distinct elements in this iterable. |
OrderedIterable<T> |
dropWhile(Predicate<? super T> predicate) |
Returns the final elements that do not satisfy the Predicate.
|
<V> OrderedIterable<V> |
flatCollect(Function<? super T,? extends Iterable<V>> function) |
flatCollect is a special case of RichIterable.collect(Function) . |
default <P,V> OrderedIterable<V> |
flatCollectWith(Function2<? super T,? super P,? extends Iterable<V>> function,
P parameter) |
|
void |
forEach(int startIndex,
int endIndex,
Procedure<? super T> procedure) |
Iterates over the section of the iterable covered by the specified inclusive indexes.
|
void |
forEachWithIndex(int fromIndex,
int toIndex,
ObjectIntProcedure<? super T> objectIntProcedure) |
Iterates over the section of the iterable covered by the specified inclusive indexes.
|
void |
forEachWithIndex(ObjectIntProcedure<? super T> objectIntProcedure) |
Iterates over the iterable passing each element and the current relative int index to the specified instance of
ObjectIntProcedure
|
T |
getFirst() |
Returns the first element of an iterable.
|
default Optional<T> |
getFirstOptional() |
Returns the first element of an iterable as an Optional.
|
T |
getLast() |
Returns the last element of an iterable.
|
default Optional<T> |
getLastOptional() |
Returns the last element of an iterable as an Optional.
|
<V> OrderedIterableMultimap<V,T> |
groupBy(Function<? super T,? extends V> function) |
For each element of the iterable, the function is evaluated and the results of these evaluations are collected
into a new multimap, where the transformed value is the key and the original values are added to the same (or similar)
species of collection as the source iterable.
|
<V> OrderedIterableMultimap<V,T> |
groupByEach(Function<? super T,? extends Iterable<V>> function) |
Similar to
RichIterable.groupBy(Function) , except the result of evaluating function will return a collection of keys
for each value. |
int |
indexOf(Object object) |
Returns the index of the first occurrence of the specified item
in this iterable, or -1 if this iterable does not contain the item.
|
T |
max() |
Returns the maximum element out of this container based on the natural order, not the order of this container.
|
T |
min() |
Returns the minimum element out of this container based on the natural order, not the order of this container.
|
PartitionOrderedIterable<T> |
partition(Predicate<? super T> predicate) |
Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
|
PartitionOrderedIterable<T> |
partitionWhile(Predicate<? super T> predicate) |
Returns a Partition of the initial elements that satisfy the Predicate and the remaining elements.
|
<P> PartitionOrderedIterable<T> |
partitionWith(Predicate2<? super T,? super P> predicate,
P parameter) |
Filters a collection into a PartitionIterable based on the evaluation of the predicate.
|
OrderedIterable<T> |
reject(Predicate<? super T> predicate) |
Returns all elements of the source collection that return false when evaluating of the predicate.
|
<P> OrderedIterable<T> |
rejectWith(Predicate2<? super T,? super P> predicate,
P parameter) |
Similar to
RichIterable.reject(Predicate) , except with an evaluation parameter for the second generic argument in Predicate2 . |
OrderedIterable<T> |
select(Predicate<? super T> predicate) |
Returns all elements of the source collection that return true when evaluating the predicate.
|
<S> OrderedIterable<S> |
selectInstancesOf(Class<S> clazz) |
Returns all elements of the source collection that are instances of the Class
clazz . |
<P> OrderedIterable<T> |
selectWith(Predicate2<? super T,? super P> predicate,
P parameter) |
Similar to
RichIterable.select(Predicate) , except with an evaluation parameter for the second generic argument in Predicate2 . |
OrderedIterable<T> |
takeWhile(Predicate<? super T> predicate) |
Returns the initial elements that satisfy the Predicate.
|
OrderedIterable<T> |
tap(Procedure<? super T> procedure) |
Executes the Procedure for each element in the iterable and returns
this . |
MutableStack<T> |
toStack() |
Converts the OrderedIterable to a mutable MutableStack implementation.
|
<S> OrderedIterable<Pair<T,S>> |
zip(Iterable<S> that) |
Returns a
OrderedIterable formed from this OrderedIterable and another Iterable by
combining corresponding elements in pairs. |
<S,R extends Collection<Pair<T,S>>> |
zip(Iterable<S> that,
R target) |
Same as
zip(Iterable) but uses target for output. |
OrderedIterable<Pair<T,Integer>> |
zipWithIndex() |
Zips this
RichIterable with its indices. |
<R extends Collection<Pair<T,Integer>>> |
zipWithIndex(R target) |
Same as
zipWithIndex() but uses target for output. |
forEach, forEachWith
iterator, spliterator
aggregateBy, aggregateInPlaceBy, allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countBy, countBy, countByEach, countByEach, countByWith, countByWith, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, flatCollectWith, forEach, getAny, getOnly, groupBy, groupByAndCollect, groupByEach, groupByUniqueKey, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, into, isEmpty, makeString, makeString, makeString, max, maxBy, maxByOptional, maxOptional, maxOptional, min, minBy, minByOptional, minOptional, minOptional, noneSatisfy, noneSatisfyWith, notEmpty, reduce, reduceInPlace, reduceInPlace, reject, rejectWith, select, selectWith, size, sumByDouble, sumByFloat, sumByInt, sumByLong, summarizeDouble, summarizeFloat, summarizeInt, summarizeLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toBiMap, toList, toMap, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy, toString
int indexOf(Object object)
List.indexOf(Object)
T getFirst()
getFirst
in interface RichIterable<T>
default Optional<T> getFirstOptional()
Optional.empty()
is returned.NullPointerException
- if the element is nullT getLast()
getLast
in interface RichIterable<T>
default Optional<T> getLastOptional()
Optional.empty()
is returned.NullPointerException
- if the element is nullOrderedIterable<T> tap(Procedure<? super T> procedure)
RichIterable
this
.
Example using a Java 8 lambda expression:
RichIterable<Person> tapped = people.tap(person -> LOGGER.info(person.getName()));
Example using an anonymous inner class:
RichIterable<Person> tapped = people.tap(new Procedure<Person>() { public void value(Person person) { LOGGER.info(person.getName()); } });
tap
in interface RichIterable<T>
RichIterable.each(Procedure)
,
RichIterable.forEach(Procedure)
OrderedIterable<T> takeWhile(Predicate<? super T> predicate)
OrderedIterable<T> dropWhile(Predicate<? super T> predicate)
PartitionOrderedIterable<T> partitionWhile(Predicate<? super T> predicate)
OrderedIterable<T> distinct()
OrderedIterable
containing the distinct elements in this iterable.
Conceptually similar to RichIterable.toSet()
.RichIterable.toList()
but retains the original order. If an element appears
multiple times in this iterable, the first one will be copied into the result.
OrderedIterable
of distinct elements<S> boolean corresponds(OrderedIterable<S> other, Predicate2<? super T,? super S> predicate)
predicate
returns true for all corresponding elements e1 of
this OrderedIterable
and e2 of other
.
The predicate
is evaluated for each element at the same position of each OrderedIterable
in a forward iteration order.
This is a short circuit pattern.void forEach(int startIndex, int endIndex, Procedure<? super T> procedure)
e.g. OrderedIterable<People> people = FastList.newListWith(ted, mary, bob, sally) people.forEach(0, 1, new Procedure<Person>() { public void value(Person person) { LOGGER.info(person.getName()); } });
This code would output ted and mary's names.
void forEachWithIndex(ObjectIntProcedure<? super T> objectIntProcedure)
e.g. people.forEachWithIndex(new ObjectIntProcedure<Person>() { public void value(Person person, int index) { LOGGER.info("Index: " + index + " person: " + person.getName()); } });
forEachWithIndex
in interface InternalIterable<T>
void forEachWithIndex(int fromIndex, int toIndex, ObjectIntProcedure<? super T> objectIntProcedure)
e.g. OrderedIterable<People> people = FastList.newListWith(ted, mary, bob, sally) people.forEachWithIndex(0, 1, new ObjectIntProcedure<Person>() { public void value(Person person, int index) { LOGGER.info(person.getName()); } });
This code would output ted and mary's names.
MutableStack<T> toStack()
T min()
getFirst()
.min
in interface RichIterable<T>
ClassCastException
- if the elements are not Comparable
NoSuchElementException
- if the OrderedIterable is emptyT max()
getLast()
.max
in interface RichIterable<T>
ClassCastException
- if the elements are not Comparable
NoSuchElementException
- if the OrderedIterable is emptyOrderedIterable<T> select(Predicate<? super T> predicate)
RichIterable
Example using a Java 8 lambda expression:
RichIterable<Person> selected = people.select(person -> person.getAddress().getCity().equals("London"));
Example using an anonymous inner class:
RichIterable<Person> selected = people.select(new Predicate<Person>() { public boolean accept(Person person) { return person.getAddress().getCity().equals("London"); } });
select
in interface RichIterable<T>
<P> OrderedIterable<T> selectWith(Predicate2<? super T,? super P> predicate, P parameter)
RichIterable
RichIterable.select(Predicate)
, except with an evaluation parameter for the second generic argument in Predicate2
.
E.g. return a Collection
of Person elements where the person has an age greater than or equal to 18 years
Example using a Java 8 lambda expression:
RichIterable<Person> selected = people.selectWith((Person person, Integer age) -> person.getAge()>= age, Integer.valueOf(18));
Example using an anonymous inner class:
RichIterable<Person> selected = people.selectWith(new Predicate2<Person, Integer>() { public boolean accept(Person person, Integer age) { return person.getAge()>= age; } }, Integer.valueOf(18));
selectWith
in interface RichIterable<T>
predicate
- a Predicate2
to use as the select criteriaparameter
- a parameter to pass in for evaluation of the second argument P
in predicate
RichIterable.select(Predicate)
OrderedIterable<T> reject(Predicate<? super T> predicate)
RichIterable
Example using a Java 8 lambda expression:
RichIterable<Person> rejected = people.reject(person -> person.person.getLastName().equals("Smith"));
Example using an anonymous inner class:
RichIterable<Person> rejected = people.reject(new Predicate<Person>() { public boolean accept(Person person) { return person.person.getLastName().equals("Smith"); } });
reject
in interface RichIterable<T>
predicate
- a Predicate
to use as the reject criteriaPredicate.accept(Object)
method to evaluate to false<P> OrderedIterable<T> rejectWith(Predicate2<? super T,? super P> predicate, P parameter)
RichIterable
RichIterable.reject(Predicate)
, except with an evaluation parameter for the second generic argument in Predicate2
.
E.g. return a Collection
of Person elements where the person has an age greater than or equal to 18 years
Example using a Java 8 lambda expression:
RichIterable<Person> rejected = people.rejectWith((Person person, Integer age) -> person.getAge() < age, Integer.valueOf(18));
Example using an anonymous inner class:
MutableList<Person> rejected = people.rejectWith(new Predicate2<Person, Integer>() { public boolean accept(Person person, Integer age) { return person.getAge() < age; } }, Integer.valueOf(18));
rejectWith
in interface RichIterable<T>
predicate
- a Predicate2
to use as the select criteriaparameter
- a parameter to pass in for evaluation of the second argument P
in predicate
RichIterable.select(Predicate)
PartitionOrderedIterable<T> partition(Predicate<? super T> predicate)
RichIterable
Example using a Java 8 lambda expression:
PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partition(person -> person.getAddress().getState().getName().equals("New York"));
Example using an anonymous inner class:
PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partition(new Predicate<Person>() { public boolean accept(Person person) { return person.getAddress().getState().getName().equals("New York"); } });
partition
in interface RichIterable<T>
<P> PartitionOrderedIterable<T> partitionWith(Predicate2<? super T,? super P> predicate, P parameter)
RichIterable
Example using a Java 8 lambda expression:
PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partitionWith((Person person, String state) -> person.getAddress().getState().getName().equals(state), "New York");
Example using an anonymous inner class:
PartitionIterable<Person> newYorkersAndNonNewYorkers = people.partitionWith(new Predicate2<Person, String>() { public boolean accept(Person person, String state) { return person.getAddress().getState().getName().equals(state); } }, "New York");
partitionWith
in interface RichIterable<T>
<S> OrderedIterable<S> selectInstancesOf(Class<S> clazz)
RichIterable
clazz
.
RichIterable<Integer> integers = List.mutable.with(new Integer(0), new Long(0L), new Double(0.0)).selectInstancesOf(Integer.class);
selectInstancesOf
in interface RichIterable<T>
<V> OrderedIterable<V> collect(Function<? super T,? extends V> function)
RichIterable
Example using a Java 8 lambda expression:
RichIterable<String> names = people.collect(person -> person.getFirstName() + " " + person.getLastName());
Example using an anonymous inner class:
RichIterable<String> names = people.collect(new Function<Person, String>() { public String valueOf(Person person) { return person.getFirstName() + " " + person.getLastName(); } });
collect
in interface RichIterable<T>
default <V> OrderedIterable<V> collectWithIndex(ObjectIntToObjectFunction<? super T,? extends V> function)
default <V,R extends Collection<V>> R collectWithIndex(ObjectIntToObjectFunction<? super T,? extends V> function, R target)
<P,V> OrderedIterable<V> collectWith(Function2<? super T,? super P,? extends V> function, P parameter)
RichIterable
RichIterable.collect(Function)
with a Function2
and specified parameter which is passed to the block.
Example using a Java 8 lambda expression:
RichIterable<Integer> integers = Lists.mutable.with(1, 2, 3).collectWith((each, parameter) -> each + parameter, Integer.valueOf(1));
Example using an anonymous inner class:
Function2<Integer, Integer, Integer> addParameterFunction = new Function2<Integer, Integer, Integer>() { public Integer value(Integer each, Integer parameter) { return each + parameter; } }; RichIterable<Integer> integers = Lists.mutable.with(1, 2, 3).collectWith(addParameterFunction, Integer.valueOf(1));
collectWith
in interface RichIterable<T>
function
- A Function2
to use as the collect transformation functionparameter
- A parameter to pass in for evaluation of the second argument P
in function
RichIterable
that contains the transformed elements returned by Function2.value(Object, Object)
RichIterable.collect(Function)
<V> OrderedIterable<V> collectIf(Predicate<? super T> predicate, Function<? super T,? extends V> function)
RichIterable
Example using a Java 8 lambda and method reference:
RichIterable<String> strings = Lists.mutable.with(1, 2, 3).collectIf(e -> e != null, Object::toString);
Example using Predicates factory:
RichIterable<String> strings = Lists.mutable.with(1, 2, 3).collectIf(Predicates.notNull(), Functions.getToString());
collectIf
in interface RichIterable<T>
<V> OrderedIterable<V> flatCollect(Function<? super T,? extends Iterable<V>> function)
RichIterable
flatCollect
is a special case of RichIterable.collect(Function)
. With collect
, when the Function
returns
a collection, the result is a collection of collections. flatCollect
outputs a single "flattened" collection
instead. This method is commonly called flatMap.
Consider the following example where we have a Person
class, and each Person
has a list of Address
objects. Take the following Function
:
Function<Person, List<Address>> addressFunction = Person::getAddresses; RichIterable<Person> people = ...;Using
collect
returns a collection of collections of addresses.
RichIterable<List<Address>> addresses = people.collect(addressFunction);Using
flatCollect
returns a single flattened list of addresses.
RichIterable<Address> addresses = people.flatCollect(addressFunction);
flatCollect
in interface RichIterable<T>
function
- The Function
to applyfunction
default <P,V> OrderedIterable<V> flatCollectWith(Function2<? super T,? super P,? extends Iterable<V>> function, P parameter)
flatCollectWith
in interface RichIterable<T>
OrderedBooleanIterable collectBoolean(BooleanFunction<? super T> booleanFunction)
RichIterable
boolean
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
BooleanIterable licenses = people.collectBoolean(person -> person.hasDrivingLicense());
Example using an anonymous inner class:
BooleanIterable licenses = people.collectBoolean(new BooleanFunction<Person>() { public boolean booleanValueOf(Person person) { return person.hasDrivingLicense(); } });
collectBoolean
in interface RichIterable<T>
OrderedByteIterable collectByte(ByteFunction<? super T> byteFunction)
RichIterable
byte
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
ByteIterable bytes = people.collectByte(person -> person.getCode());
Example using an anonymous inner class:
ByteIterable bytes = people.collectByte(new ByteFunction<Person>() { public byte byteValueOf(Person person) { return person.getCode(); } });
collectByte
in interface RichIterable<T>
OrderedCharIterable collectChar(CharFunction<? super T> charFunction)
RichIterable
char
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
CharIterable chars = people.collectChar(person -> person.getMiddleInitial());
Example using an anonymous inner class:
CharIterable chars = people.collectChar(new CharFunction<Person>() { public char charValueOf(Person person) { return person.getMiddleInitial(); } });
collectChar
in interface RichIterable<T>
OrderedDoubleIterable collectDouble(DoubleFunction<? super T> doubleFunction)
RichIterable
double
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
DoubleIterable doubles = people.collectDouble(person -> person.getMilesFromNorthPole());
Example using an anonymous inner class:
DoubleIterable doubles = people.collectDouble(new DoubleFunction<Person>() { public double doubleValueOf(Person person) { return person.getMilesFromNorthPole(); } });
collectDouble
in interface RichIterable<T>
OrderedFloatIterable collectFloat(FloatFunction<? super T> floatFunction)
RichIterable
float
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
FloatIterable floats = people.collectFloat(person -> person.getHeightInInches());
Example using an anonymous inner class:
FloatIterable floats = people.collectFloat(new FloatFunction<Person>() { public float floatValueOf(Person person) { return person.getHeightInInches(); } });
collectFloat
in interface RichIterable<T>
OrderedIntIterable collectInt(IntFunction<? super T> intFunction)
RichIterable
int
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
IntIterable ints = people.collectInt(person -> person.getAge());
Example using an anonymous inner class:
IntIterable ints = people.collectInt(new IntFunction<Person>() { public int intValueOf(Person person) { return person.getAge(); } });
collectInt
in interface RichIterable<T>
OrderedLongIterable collectLong(LongFunction<? super T> longFunction)
RichIterable
long
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
LongIterable longs = people.collectLong(person -> person.getGuid());
Example using an anonymous inner class:
LongIterable longs = people.collectLong(new LongFunction<Person>() { public long longValueOf(Person person) { return person.getGuid(); } });
collectLong
in interface RichIterable<T>
OrderedShortIterable collectShort(ShortFunction<? super T> shortFunction)
RichIterable
short
iterable with the results of applying the specified function on each element
of the source collection. This method is also commonly called transform or map.
Example using a Java 8 lambda expression:
ShortIterable shorts = people.collectShort(person -> person.getNumberOfJunkMailItemsReceivedPerMonth());
Example using an anonymous inner class:
ShortIterable shorts = people.collectShort(new ShortFunction<Person>() { public short shortValueOf(Person person) { return person.getNumberOfJunkMailItemsReceivedPerMonth(); } });
collectShort
in interface RichIterable<T>
int detectIndex(Predicate<? super T> predicate)
OrderedIterable
for which the predicate
evaluates to true.
Returns -1 if no element evaluates true for the predicate
.<V> OrderedIterableMultimap<V,T> groupBy(Function<? super T,? extends V> function)
RichIterable
Example using a Java 8 method reference:
Multimap<String, Person> peopleByLastName = people.groupBy(Person::getLastName);
Example using an anonymous inner class:
Multimap<String, Person> peopleByLastName = people.groupBy(new Function<Person, String>() { public String valueOf(Person person) { return person.getLastName(); } });
groupBy
in interface RichIterable<T>
<V> OrderedIterableMultimap<V,T> groupByEach(Function<? super T,? extends Iterable<V>> function)
RichIterable
RichIterable.groupBy(Function)
, except the result of evaluating function will return a collection of keys
for each value.groupByEach
in interface RichIterable<T>
<S> OrderedIterable<Pair<T,S>> zip(Iterable<S> that)
OrderedIterable
formed from this OrderedIterable
and another Iterable
by
combining corresponding elements in pairs. The second Iterable
should also be ordered.
If one of the two Iterable
s is longer than the other, its
remaining elements are ignored.zip
in interface RichIterable<T>
S
- the type of the second half of the returned pairsthat
- The Iterable
providing the second half of each result pairOrderedIterable
containing pairs consisting of corresponding elements of this
OrderedIterable
and that. The length of the returned OrderedIterable
is the minimum of the lengths of
this OrderedIterable
and that.<S,R extends Collection<Pair<T,S>>> R zip(Iterable<S> that, R target)
zip(Iterable)
but uses target
for output.zip
in interface RichIterable<T>
OrderedIterable<Pair<T,Integer>> zipWithIndex()
RichIterable
RichIterable
with its indices.zipWithIndex
in interface RichIterable<T>
RichIterable
containing pairs consisting of all elements of this RichIterable
paired with their index. Indices start at 0.RichIterable.zip(Iterable)
<R extends Collection<Pair<T,Integer>>> R zipWithIndex(R target)
zipWithIndex()
but uses target
for output.zipWithIndex
in interface RichIterable<T>
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