InternalIterable<K>
, Iterable<K>
, MapIterable<K,V>
, OrderedIterable<K>
, ReversibleIterable<V>
, RichIterable<K>
ImmutableSortedMap<K,V>
, MutableSortedMap<K,V>
AbstractImmutableSortedMap
, AbstractMutableSortedMap
, ImmutableTreeMap
, SortedMapAdapter
, SynchronizedSortedMap
, TreeSortedMap
, UnmodifiableTreeMap
public interface SortedMapIterable<K,V> extends MapIterable<K,V>, ReversibleIterable<V>
Modifier and Type | Method | Description |
---|---|---|
<V1> ListIterable<V1> |
collect(Function<? super V,? extends V1> function) |
Returns a new collection with the results of applying the specified function on each element of the source
collection.
|
<K2,V2> UnsortedMapIterable<K2,V2> |
collect(Function2<? super K,? super V,Pair<K2,V2>> function) |
For each key and value of the map the function is evaluated.
|
BooleanList |
collectBoolean(BooleanFunction<? super V> booleanFunction) |
Returns a new primitive
boolean iterable with the results of applying the specified function on each element
of the source collection. |
ByteList |
collectByte(ByteFunction<? super V> byteFunction) |
Returns a new primitive
byte iterable with the results of applying the specified function on each element
of the source collection. |
CharList |
collectChar(CharFunction<? super V> charFunction) |
Returns a new primitive
char iterable with the results of applying the specified function on each element
of the source collection. |
DoubleList |
collectDouble(DoubleFunction<? super V> doubleFunction) |
Returns a new primitive
double iterable with the results of applying the specified function on each element
of the source collection. |
FloatList |
collectFloat(FloatFunction<? super V> floatFunction) |
Returns a new primitive
float iterable with the results of applying the specified function on each element
of the source collection. |
<V1> ListIterable<V1> |
collectIf(Predicate<? super V> predicate,
Function<? super V,? extends V1> 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.
|
IntList |
collectInt(IntFunction<? super V> intFunction) |
Returns a new primitive
int iterable with the results of applying the specified function on each element
of the source collection. |
LongList |
collectLong(LongFunction<? super V> longFunction) |
Returns a new primitive
long iterable with the results of applying the specified function on each element
of the source collection. |
ShortList |
collectShort(ShortFunction<? super V> shortFunction) |
Returns a new primitive
short iterable with the results of applying the specified function on each element
of the source collection. |
<R> SortedMapIterable<K,R> |
collectValues(Function2<? super K,? super V,? extends R> function) |
For each key and value of the map the function is evaluated.
|
<P,V1> ListIterable<V1> |
collectWith(Function2<? super V,? super P,? extends V1> function,
P parameter) |
Same as
RichIterable.collect(Function) with a Function2 and specified parameter which is passed to the block. |
Comparator<? super K> |
comparator() |
|
ListIterable<V> |
distinct() |
Returns a new
OrderedIterable containing the distinct elements in this iterable. |
SortedMapIterable<K,V> |
drop(int count) |
Returns an iterable after skipping the first
count elements
or an empty iterable if the count is greater than the length of the iterable. |
SortedMapIterable<K,V> |
dropWhile(Predicate<? super V> predicate) |
Returns the final elements that do not satisfy the Predicate.
|
<V1> ListIterable<V1> |
flatCollect(Function<? super V,? extends Iterable<V1>> function) |
flatCollect is a special case of RichIterable.collect(Function) . |
SortedSetMultimap<V,K> |
flip() |
Given a map from Domain -> Range return a multimap from Range -> Domain.
|
<VV> ListMultimap<VV,V> |
groupBy(Function<? super V,? extends VV> 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.
|
<VV> ListMultimap<VV,V> |
groupByEach(Function<? super V,? extends Iterable<VV>> function) |
Similar to
RichIterable.groupBy(Function) , except the result of evaluating function will return a collection of keys
for each value. |
PartitionList<V> |
partition(Predicate<? super V> predicate) |
Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
|
PartitionList<V> |
partitionWhile(Predicate<? super V> predicate) |
Returns a Partition of the initial elements that satisfy the Predicate and the remaining elements.
|
<P> PartitionList<V> |
partitionWith(Predicate2<? super V,? super P> predicate,
P parameter) |
Filters a collection into a PartitionIterable based on the evaluation of the predicate.
|
ListIterable<V> |
reject(Predicate<? super V> predicate) |
Returns all elements of the source collection that return false when evaluating of the predicate.
|
SortedMapIterable<K,V> |
reject(Predicate2<? super K,? super V> predicate) |
For each key and value of the map the predicate is evaluated, if the result of the evaluation is false,
that key and value are returned in a new map.
|
<P> ListIterable<V> |
rejectWith(Predicate2<? super V,? super P> predicate,
P parameter) |
Similar to
RichIterable.reject(Predicate) , except with an evaluation parameter for the second generic argument in Predicate2 . |
ListIterable<V> |
select(Predicate<? super V> predicate) |
Returns all elements of the source collection that return true when evaluating the predicate.
|
SortedMapIterable<K,V> |
select(Predicate2<? super K,? super V> predicate) |
For each key and value of the map the predicate is evaluated, if the result of the evaluation is true,
that key and value are returned in a new map.
|
<S> ListIterable<S> |
selectInstancesOf(Class<S> clazz) |
Returns all elements of the source collection that are instances of the Class
clazz . |
<P> ListIterable<V> |
selectWith(Predicate2<? super V,? super P> predicate,
P parameter) |
Similar to
RichIterable.select(Predicate) , except with an evaluation parameter for the second generic argument in Predicate2 . |
SortedMapIterable<K,V> |
take(int count) |
Returns the first
count elements of the iterable
or all the elements in the iterable if count is greater than the length of
the iterable. |
SortedMapIterable<K,V> |
takeWhile(Predicate<? super V> predicate) |
Returns the initial elements that satisfy the Predicate.
|
SortedMapIterable<K,V> |
tap(Procedure<? super V> procedure) |
Executes the Procedure for each value of the map and returns
this . |
ImmutableSortedMap<K,V> |
toImmutable() |
Converts the SortedMapIterable to an immutable implementation.
|
SortedMapIterable<K,V> |
toReversed() |
Returns a new ReversibleIterable in reverse order.
|
<S> ListIterable<Pair<V,S>> |
zip(Iterable<S> that) |
Returns a
RichIterable formed from this RichIterable and another RichIterable by
combining corresponding elements in pairs. |
ListIterable<Pair<V,Integer>> |
zipWithIndex() |
Zips this
RichIterable with its indices. |
forEach, forEachWith
forEach, iterator, spliterator
containsKey, containsValue, detect, detectOptional, equals, flipUniqueValues, forEachKey, forEachKeyValue, forEachValue, get, getIfAbsent, getIfAbsentValue, getIfAbsentWith, hashCode, ifPresentApply, keysView, keyValuesView, toString, valuesView
corresponds, detectIndex, forEach, forEachWithIndex, forEachWithIndex, getFirst, getFirstOptional, getLast, getLastOptional, indexOf, max, min, toStack, zip, zipWithIndex
asReversed, detectLastIndex, reverseForEach
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, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, getOnly, groupBy, 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, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy
Comparator<? super K> comparator()
SortedSetMultimap<V,K> flip()
MapIterable
Since the keys in the input are unique, the values in the output are unique, so the return type should be a SetMultimap. However since SetMultimap and SortedSetMultimap don't inherit from one another, SetMultimap here does not allow SortedMapIterable to have a SortedSetMultimap return. Thus we compromise and call this Multimap, even though all implementations will be a SetMultimap or SortedSetMultimap.
flip
in interface MapIterable<K,V>
SortedMapIterable<K,V> select(Predicate2<? super K,? super V> predicate)
MapIterable
MapIterable<City, Person> selected = peopleByCity.select((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
select
in interface MapIterable<K,V>
SortedMapIterable<K,V> reject(Predicate2<? super K,? super V> predicate)
MapIterable
MapIterable<City, Person> rejected = peopleByCity.reject((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
reject
in interface MapIterable<K,V>
<K2,V2> UnsortedMapIterable<K2,V2> collect(Function2<? super K,? super V,Pair<K2,V2>> function)
MapIterable
MapIterable<String, String> collected = peopleByCity.collect((City city, Person person) -> Pair.of(city.getCountry(), person.getAddress().getCity()));
collect
in interface MapIterable<K,V>
<R> SortedMapIterable<K,R> collectValues(Function2<? super K,? super V,? extends R> function)
MapIterable
MapIterable<City, String> collected = peopleByCity.collectValues((City city, Person person) -> person.getFirstName() + " " + person.getLastName());
collectValues
in interface MapIterable<K,V>
SortedMapIterable<K,V> tap(Procedure<? super V> procedure)
MapIterable
this
.
return peopleByCity.tap(person -> LOGGER.info(person.getName()));
tap
in interface MapIterable<K,V>
tap
in interface OrderedIterable<K>
tap
in interface ReversibleIterable<K>
tap
in interface RichIterable<K>
InternalIterable.forEach(Procedure)
ListIterable<V> select(Predicate<? super V> 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 OrderedIterable<K>
select
in interface ReversibleIterable<K>
select
in interface RichIterable<K>
<P> ListIterable<V> selectWith(Predicate2<? super V,? 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 OrderedIterable<K>
selectWith
in interface ReversibleIterable<K>
selectWith
in interface RichIterable<K>
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)
ListIterable<V> reject(Predicate<? super V> 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 OrderedIterable<K>
reject
in interface ReversibleIterable<K>
reject
in interface RichIterable<K>
predicate
- a Predicate
to use as the reject criteriaPredicate.accept(Object)
method to evaluate to false<P> ListIterable<V> rejectWith(Predicate2<? super V,? 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 OrderedIterable<K>
rejectWith
in interface ReversibleIterable<K>
rejectWith
in interface RichIterable<K>
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)
PartitionList<V> partition(Predicate<? super V> 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 OrderedIterable<K>
partition
in interface ReversibleIterable<K>
partition
in interface RichIterable<K>
<P> PartitionList<V> partitionWith(Predicate2<? super V,? 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 OrderedIterable<K>
partitionWith
in interface ReversibleIterable<K>
partitionWith
in interface RichIterable<K>
<S> ListIterable<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 OrderedIterable<K>
selectInstancesOf
in interface ReversibleIterable<K>
selectInstancesOf
in interface RichIterable<K>
<V1> ListIterable<V1> collect(Function<? super V,? extends V1> 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 OrderedIterable<K>
collect
in interface ReversibleIterable<K>
collect
in interface RichIterable<K>
BooleanList collectBoolean(BooleanFunction<? super V> 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 OrderedIterable<K>
collectBoolean
in interface ReversibleIterable<K>
collectBoolean
in interface RichIterable<K>
ByteList collectByte(ByteFunction<? super V> 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 OrderedIterable<K>
collectByte
in interface ReversibleIterable<K>
collectByte
in interface RichIterable<K>
CharList collectChar(CharFunction<? super V> 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 OrderedIterable<K>
collectChar
in interface ReversibleIterable<K>
collectChar
in interface RichIterable<K>
DoubleList collectDouble(DoubleFunction<? super V> 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 OrderedIterable<K>
collectDouble
in interface ReversibleIterable<K>
collectDouble
in interface RichIterable<K>
FloatList collectFloat(FloatFunction<? super V> 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 OrderedIterable<K>
collectFloat
in interface ReversibleIterable<K>
collectFloat
in interface RichIterable<K>
IntList collectInt(IntFunction<? super V> 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 OrderedIterable<K>
collectInt
in interface ReversibleIterable<K>
collectInt
in interface RichIterable<K>
LongList collectLong(LongFunction<? super V> 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 OrderedIterable<K>
collectLong
in interface ReversibleIterable<K>
collectLong
in interface RichIterable<K>
ShortList collectShort(ShortFunction<? super V> 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 OrderedIterable<K>
collectShort
in interface ReversibleIterable<K>
collectShort
in interface RichIterable<K>
<P,V1> ListIterable<V1> collectWith(Function2<? super V,? super P,? extends V1> 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 OrderedIterable<K>
collectWith
in interface ReversibleIterable<K>
collectWith
in interface RichIterable<K>
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)
<V1> ListIterable<V1> collectIf(Predicate<? super V> predicate, Function<? super V,? extends V1> 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 OrderedIterable<K>
collectIf
in interface ReversibleIterable<K>
collectIf
in interface RichIterable<K>
<V1> ListIterable<V1> flatCollect(Function<? super V,? extends Iterable<V1>> 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 OrderedIterable<K>
flatCollect
in interface ReversibleIterable<K>
flatCollect
in interface RichIterable<K>
function
- The Function
to applyfunction
<S> ListIterable<Pair<V,S>> zip(Iterable<S> that)
RichIterable
RichIterable
formed from this RichIterable
and another RichIterable
by
combining corresponding elements in pairs. If one of the two RichIterable
s is longer than the other, its
remaining elements are ignored.zip
in interface OrderedIterable<K>
zip
in interface ReversibleIterable<K>
zip
in interface RichIterable<K>
S
- the type of the second half of the returned pairsthat
- The RichIterable
providing the second half of each result pairRichIterable
containing pairs consisting of corresponding elements of this
RichIterable
and that. The length of the returned RichIterable
is the minimum of the lengths of
this RichIterable
and that.ListIterable<Pair<V,Integer>> zipWithIndex()
RichIterable
RichIterable
with its indices.zipWithIndex
in interface OrderedIterable<K>
zipWithIndex
in interface ReversibleIterable<K>
zipWithIndex
in interface RichIterable<K>
RichIterable
containing pairs consisting of all elements of this RichIterable
paired with their index. Indices start at 0.RichIterable.zip(Iterable)
<VV> ListMultimap<VV,V> groupBy(Function<? super V,? extends VV> 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 OrderedIterable<K>
groupBy
in interface ReversibleIterable<K>
groupBy
in interface RichIterable<K>
<VV> ListMultimap<VV,V> groupByEach(Function<? super V,? extends Iterable<VV>> function)
RichIterable
RichIterable.groupBy(Function)
, except the result of evaluating function will return a collection of keys
for each value.groupByEach
in interface OrderedIterable<K>
groupByEach
in interface ReversibleIterable<K>
groupByEach
in interface RichIterable<K>
SortedMapIterable<K,V> toReversed()
ReversibleIterable
toReversed
in interface ReversibleIterable<K>
SortedMapIterable<K,V> take(int count)
ReversibleIterable
count
elements of the iterable
or all the elements in the iterable if count
is greater than the length of
the iterable.take
in interface ReversibleIterable<K>
count
- the number of items to take.SortedMapIterable<K,V> takeWhile(Predicate<? super V> predicate)
ReversibleIterable
takeWhile
in interface OrderedIterable<K>
takeWhile
in interface ReversibleIterable<K>
SortedMapIterable<K,V> drop(int count)
ReversibleIterable
count
elements
or an empty iterable if the count
is greater than the length of the iterable.drop
in interface ReversibleIterable<K>
count
- the number of items to drop.SortedMapIterable<K,V> dropWhile(Predicate<? super V> predicate)
ReversibleIterable
dropWhile
in interface OrderedIterable<K>
dropWhile
in interface ReversibleIterable<K>
PartitionList<V> partitionWhile(Predicate<? super V> predicate)
OrderedIterable
partitionWhile
in interface OrderedIterable<K>
partitionWhile
in interface ReversibleIterable<K>
ListIterable<V> distinct()
OrderedIterable
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.
distinct
in interface OrderedIterable<K>
distinct
in interface ReversibleIterable<K>
OrderedIterable
of distinct elementsImmutableSortedMap<K,V> toImmutable()
toImmutable
in interface MapIterable<K,V>
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