Package org.eclipse.collections.api.map.sorted

Interface MutableSortedMap<K,V>

All Superinterfaces:

Cloneable, InternalIterable<V>, Iterable<V>, Map<K,V>, MapIterable<K,V>, MutableMapIterable<K,V>, OrderedIterable<V>, ReversibleIterable<V>, RichIterable<V>, SortedMap<K,V>, SortedMapIterable<K,V>

public interface MutableSortedMap<K,V>
extends MutableMapIterable<K,V>, SortedMapIterable<K,V>, SortedMap<K,V>, Cloneable

A MutableSortedMap is similar to a JCF Map but adds additional useful internal iterator methods. The MutableSortedMap interface additionally implements some methods in the Smalltalk Dictionary protocol.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Method Summary

Modifier and Type	Method	Description
MutableSortedMap<K,V>	asSynchronized()	Returns a synchronized wrapper backed by this map.
MutableSortedMap<K,V>	asUnmodifiable()	Returns an unmodifiable view of this map.
MutableSortedMap<K,V>	clone()
<R> MutableList<R>	collect(Function<? super V,? extends R> function)	Returns a new collection with the results of applying the specified function on each element of the source collection.
<K2, V2> MutableMap<K2,V2>	collect(Function2<? super K,? super V,Pair<K2,V2>> function)	For each key and value of the map the function is evaluated.
MutableBooleanList	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.
MutableByteList	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.
MutableCharList	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.
MutableDoubleList	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.
MutableFloatList	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.
<R> MutableList<R>	collectIf(Predicate<? super V> predicate, Function<? super V,? extends R> 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.
MutableIntList	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.
<E> MutableSortedMap<K,V>	collectKeysAndValues(Iterable<E> iterable, Function<? super E,? extends K> keyFunction, Function<? super E,? extends V> valueFunction)	Adds all the entries derived from iterable to this.
<R> MutableOrderedMap<R,V>	collectKeysUnique(Function2<? super K,? super V,? extends R> function)	For each key and value of the map the function is evaluated.
MutableLongList	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.
MutableShortList	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> MutableSortedMap<K,R>	collectValues(Function2<? super K,? super V,? extends R> function)	For each key and value of the map the function is evaluated.
<P, VV> MutableList<VV>	collectWith(Function2<? super V,? super P,? extends VV> function, P parameter)	Same as RichIterable.collect(Function) with a Function2 and specified parameter which is passed to the block.
default <R> MutableList<R>	collectWithIndex(ObjectIntToObjectFunction<? super V,? extends R> function)	Returns a new OrderedIterable using results obtained by applying the specified function to each element and its corresponding index.
MutableList<V>	distinct()	Returns a new OrderedIterable containing the distinct elements in this iterable.
MutableSortedMap<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.
MutableSortedMap<K,V>	dropWhile(Predicate<? super V> predicate)	Returns the final elements that do not satisfy the Predicate.
MutableSet<Map.Entry<K,V>>	entrySet()
<R> MutableList<R>	flatCollect(Function<? super V,? extends Iterable<R>> function)	flatCollect is a special case of RichIterable.collect(Function).
default <P, R> MutableList<R>	flatCollectWith(Function2<? super V,? super P,? extends Iterable<R>> function, P parameter)	Same as flatCollect, only with a Function2 that is passed an extra parameter.
MutableSortedSetMultimap<V,K>	flip()	Given a map from Domain -> Range return a multimap from Range -> Domain.
<P> V	getIfAbsentPutWith(K key, Function<? super P,? extends V> function, P parameter)	Return the value in the Map that corresponds to the specified key, or if there is no value at the key, return the result of evaluating the specified one argument Function using the specified parameter, and put that value in the map at the specified key.
<VV> MutableListMultimap<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> MutableListMultimap<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.
default <VV> MutableMap<VV,V>	groupByUniqueKey(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 map, where the transformed value is the key.
MutableSortedMap<K,V>	headMap(K toKey)
MutableSet<K>	keySet()	The underlying set for the keys is sorted in ascending order according to their natural ordering or a custom comparator.
MutableSortedMap<K,V>	newEmpty()	Creates a new instance of the same type with the same internal Comparator.
PartitionMutableList<V>	partition(Predicate<? super V> predicate)	Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
PartitionMutableList<V>	partitionWhile(Predicate<? super V> predicate)	Returns a Partition of the initial elements that satisfy the Predicate and the remaining elements.
<P> PartitionMutableList<V>	partitionWith(Predicate2<? super V,? super P> predicate, P parameter)	Filters a collection into a PartitionIterable based on the evaluation of the predicate.
MutableList<V>	reject(Predicate<? super V> predicate)	Returns all elements of the source collection that return false when evaluating of the predicate.
MutableSortedMap<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> MutableList<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.
MutableList<V>	select(Predicate<? super V> predicate)	Returns all elements of the source collection that return true when evaluating the predicate.
MutableSortedMap<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> MutableList<S>	selectInstancesOf(Class<S> clazz)	Returns all elements of the source collection that are instances of the Class clazz.
<P> MutableList<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.
MutableSortedMap<K,V>	subMap(K fromKey, K toKey)
MutableSortedMap<K,V>	tailMap(K fromKey)
MutableSortedMap<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.
MutableSortedMap<K,V>	takeWhile(Predicate<? super V> predicate)	Returns the initial elements that satisfy the Predicate.
MutableSortedMap<K,V>	tap(Procedure<? super V> procedure)	Executes the Procedure for each value of the map and returns this.
MutableSortedMap<K,V>	toReversed()	Returns a new ReversibleIterable in reverse order.
MutableCollection<V>	values()
default MutableSortedMap<K,V>	with(Pair<K,V>... pairs)	Deprecated. in 6.0 Use withAllKeyValueArguments(Pair[]) instead.
MutableSortedMap<K,V>	withAllKeyValueArguments(Pair<? extends K,? extends V>... keyValuePairs)	Convenience var-args version of withAllKeyValues
MutableSortedMap<K,V>	withAllKeyValues(Iterable<? extends Pair<? extends K,? extends V>> keyValues)	This method allows mutable, fixed size, and immutable maps the ability to add elements to their existing elements.
MutableSortedMap<K,V>	withKeyValue(K key, V value)	This method allows mutable, fixed size, and immutable maps the ability to add elements to their existing elements.
default MutableSortedMap<K,V>	withMap(Map<? extends K,? extends V> map)	Similar to Map.putAll(Map), but returns this instead of void
default MutableSortedMap<K,V>	withMapIterable(MapIterable<? extends K,? extends V> mapIterable)
MutableSortedMap<K,V>	withoutAllKeys(Iterable<? extends K> keys)	This method allows mutable, fixed size, and immutable maps the ability to remove elements from their existing elements.
MutableSortedMap<K,V>	withoutKey(K key)	This method allows mutable, fixed size, and immutable maps the ability to remove elements from their existing elements.
<S> MutableList<Pair<V,S>>	zip(Iterable<S> that)	Returns a RichIterable formed from this RichIterable and another RichIterable by combining corresponding elements in pairs.
MutableList<Pair<V,Integer>>	zipWithIndex()	Zips this RichIterable with its indices.

Methods inherited from interface org.eclipse.collections.api.InternalIterable

forEach, forEachWith

Methods inherited from interface java.lang.Iterable

iterator

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, equals, forEach, get, getOrDefault, hashCode, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size

Methods inherited from interface org.eclipse.collections.api.map.MapIterable

containsKey, containsValue, detect, detectOptional, equals, forEachKey, forEachKeyValue, forEachValue, get, getIfAbsent, getIfAbsentValue, getIfAbsentWith, hashCode, ifPresentApply, injectIntoKeyValue, keysView, keyValuesView, parallelStream, spliterator, stream, toString, valuesView

Methods inherited from interface org.eclipse.collections.api.map.MutableMapIterable

add, aggregateBy, aggregateBy, aggregateInPlaceBy, countBy, countByEach, countByWith, flipUniqueValues, forEach, getIfAbsentPut, getIfAbsentPut, getIfAbsentPutWithKey, getOrDefault, putAllMapIterable, putPair, reduceBy, removeAllKeys, removeIf, removeKey, sumByDouble, sumByFloat, sumByInt, sumByLong, toImmutable, updateValue, updateValueWith

Methods inherited from interface org.eclipse.collections.api.ordered.OrderedIterable

collectWithIndex, corresponds, detectIndex, forEach, forEachWithIndex, forEachWithIndex, getFirst, getFirstOptional, getLast, getLastOptional, indexOf, max, min, rejectWithIndex, selectWithIndex, toStack, zip, zipWithIndex

Methods inherited from interface org.eclipse.collections.api.ordered.ReversibleIterable

asReversed, detectLastIndex, reverseForEach, reverseForEachWithIndex

Methods inherited from interface org.eclipse.collections.api.RichIterable

aggregateBy, allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, containsAny, containsAnyIterable, containsBy, containsNone, containsNoneIterable, count, countBy, countByEach, countByWith, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, flatCollectBoolean, flatCollectByte, flatCollectChar, flatCollectDouble, flatCollectFloat, flatCollectInt, flatCollectLong, flatCollectShort, flatCollectWith, forEach, getAny, getOnly, groupBy, groupByAndCollect, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, injectIntoDouble, injectIntoFloat, injectIntoInt, injectIntoLong, into, isEmpty, makeString, makeString, makeString, makeString, max, maxBy, maxByOptional, maxOptional, maxOptional, min, minBy, minByOptional, minOptional, minOptional, noneSatisfy, noneSatisfyWith, notEmpty, reduce, reduceBy, reduceInPlace, reduceInPlace, reject, rejectWith, select, selectWith, size, summarizeDouble, summarizeFloat, summarizeInt, summarizeLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toBiMap, toImmutableBag, toImmutableBiMap, toImmutableList, toImmutableMap, toImmutableSet, toImmutableSortedBag, toImmutableSortedBag, toImmutableSortedBagBy, toImmutableSortedList, toImmutableSortedList, toImmutableSortedListBy, toImmutableSortedSet, toImmutableSortedSet, toImmutableSortedSetBy, toList, toMap, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy

Methods inherited from interface java.util.SortedMap

comparator, firstKey, lastKey

Methods inherited from interface org.eclipse.collections.api.map.sorted.SortedMapIterable

comparator, toImmutable

Method Details

newEmpty

MutableSortedMap<K,V> newEmpty()

Creates a new instance of the same type with the same internal Comparator.

Specified by:

newEmpty in interface MutableMapIterable<K,V>

collectKeysAndValues

<E> MutableSortedMap<K,V> collectKeysAndValues(Iterable<E> iterable,
 Function<? super E,? extends K> keyFunction,
 Function<? super E,? extends V> valueFunction)

Adds all the entries derived from iterable to this. The key and value for each entry is determined by applying the keyFunction and valueFunction to each item in collection. Any entry in map that has the same key as an entry in this will have it's value replaced by that in map.

getIfAbsentPutWith

<P> V getIfAbsentPutWith(K key,
 Function<? super P,? extends V> function,
 P parameter)

Return the value in the Map that corresponds to the specified key, or if there is no value at the key, return the result of evaluating the specified one argument Function using the specified parameter, and put that value in the map at the specified key.

Specified by:

getIfAbsentPutWith in interface MutableMapIterable<K,V>

asUnmodifiable

MutableSortedMap<K,V> asUnmodifiable()

Description copied from interface: MutableMapIterable

Returns an unmodifiable view of this map. This is the equivalent of using Collections.unmodifiableMap(this) only with a return type that supports the full iteration protocols available on MutableMapIterable. Methods which would mutate the underlying map will throw UnsupportedOperationExceptions.

Specified by:

asUnmodifiable in interface MutableMapIterable<K,V>

Returns:

an unmodifiable view of this map.

See Also:

• Collections.unmodifiableMap(Map)

asSynchronized

MutableSortedMap<K,V> asSynchronized()

Description copied from interface: MutableMapIterable

Returns a synchronized wrapper backed by this map. This is the equivalent of calling Collections.synchronizedMap(this) only with the more feature rich return type of MutableMapIterable.

The preferred way of iterating over a synchronized map is to use the forEachKey(), forEachValue() and forEachKeyValue() methods which are properly synchronized internally.

  MutableMap synchedMap = map.asSynchronized();

  synchedMap.forEachKey(key -> ... );
  synchedMap.forEachValue(value -> ... );
  synchedMap.forEachKeyValue((key, value) -> ... );
 

If you want to iterate imperatively over the keySet(), values(), or entrySet(), you will need to protect the iteration by wrapping the code in a synchronized block on the map.

Specified by:

asSynchronized in interface MutableMapIterable<K,V>

See Also:

• Collections.synchronizedMap(Map)

flip

MutableSortedSetMultimap<V,K> flip()

Description copied from interface: MapIterable

Given a map from Domain -> Range return a multimap from Range -> Domain. We chose the name 'flip' rather than 'invert' or 'transpose' since this method does not have the property of applying twice returns the original.

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.

Specified by:

flip in interface MapIterable<K,V>

Specified by:

flip in interface MutableMapIterable<K,V>

Specified by:

flip in interface SortedMapIterable<K,V>

select

MutableSortedMap<K,V> select(Predicate2<? super K,? super V> predicate)

Description copied from interface: MapIterable

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.

 MapIterable<City, Person> selected =
     peopleByCity.select((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
 

Specified by:

select in interface MapIterable<K,V>

Specified by:

select in interface MutableMapIterable<K,V>

Specified by:

select in interface SortedMapIterable<K,V>

reject

MutableSortedMap<K,V> reject(Predicate2<? super K,? super V> predicate)

Description copied from interface: MapIterable

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.

 MapIterable<City, Person> rejected =
     peopleByCity.reject((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
 

Specified by:

reject in interface MapIterable<K,V>

Specified by:

reject in interface MutableMapIterable<K,V>

Specified by:

reject in interface SortedMapIterable<K,V>

collect

<K2,
V2> MutableMap<K2,V2> collect(Function2<? super K,? super V,Pair<K2,V2>> function)

Description copied from interface: MapIterable

For each key and value of the map the function is evaluated. The results of these evaluations are returned in a new map. The map returned will use the values projected from the function rather than the original values.

 MapIterable<String, String> collected =
     peopleByCity.collect((City city, Person person) -> Pair.of(city.getCountry(), person.getAddress().getCity()));
 

Specified by:

collect in interface MapIterable<K,V>

Specified by:

collect in interface MutableMapIterable<K,V>

Specified by:

collect in interface SortedMapIterable<K,V>

collectValues

<R> MutableSortedMap<K,R> collectValues(Function2<? super K,? super V,? extends R> function)

Description copied from interface: MapIterable

For each key and value of the map the function is evaluated. The results of these evaluations are returned in a new map. The map returned will use the values projected from the function rather than the original values.

 MapIterable<City, String> collected =
     peopleByCity.collectValues((City city, Person person) -> person.getFirstName() + " " + person.getLastName());
 

Specified by:

collectValues in interface MapIterable<K,V>

Specified by:

collectValues in interface MutableMapIterable<K,V>

Specified by:

collectValues in interface SortedMapIterable<K,V>

collectKeysUnique

<R> MutableOrderedMap<R,V> collectKeysUnique(Function2<? super K,? super V,? extends R> function)

Description copied from interface: MapIterable

For each key and value of the map the function is evaluated. The results of these evaluations are returned in a new map. The map returned will use the keys projected from the function rather than the original keys.

Specified by:

collectKeysUnique in interface MapIterable<K,V>

Specified by:

collectKeysUnique in interface MutableMapIterable<K,V>

collect

<R> MutableList<R> collect(Function<? super V,? extends R> function)

Description copied from interface: RichIterable

Returns a new collection 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:

 RichIterable<String> names =
     people.collect(person -> person.getFirstName() + " " + person.getLastName());
 

Specified by:

collect in interface OrderedIterable<K>

Specified by:

collect in interface ReversibleIterable<K>

Specified by:

collect in interface RichIterable<K>

Specified by:

collect in interface SortedMapIterable<K,V>

collectWithIndex

default <R> MutableList<R> collectWithIndex(ObjectIntToObjectFunction<? super V,? extends R> function)

Description copied from interface: OrderedIterable

Returns a new OrderedIterable using results obtained by applying the specified function to each element and its corresponding index.

Specified by:

collectWithIndex in interface OrderedIterable<K>

Specified by:

collectWithIndex in interface ReversibleIterable<K>

Specified by:

collectWithIndex in interface SortedMapIterable<K,V>

Since:

9.1.

collectBoolean

MutableBooleanList collectBoolean(BooleanFunction<? super V> booleanFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectBoolean in interface OrderedIterable<K>

Specified by:

collectBoolean in interface ReversibleIterable<K>

Specified by:

collectBoolean in interface RichIterable<K>

Specified by:

collectBoolean in interface SortedMapIterable<K,V>

collectByte

MutableByteList collectByte(ByteFunction<? super V> byteFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectByte in interface OrderedIterable<K>

Specified by:

collectByte in interface ReversibleIterable<K>

Specified by:

collectByte in interface RichIterable<K>

Specified by:

collectByte in interface SortedMapIterable<K,V>

collectChar

MutableCharList collectChar(CharFunction<? super V> charFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectChar in interface OrderedIterable<K>

Specified by:

collectChar in interface ReversibleIterable<K>

Specified by:

collectChar in interface RichIterable<K>

Specified by:

collectChar in interface SortedMapIterable<K,V>

collectDouble

MutableDoubleList collectDouble(DoubleFunction<? super V> doubleFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectDouble in interface OrderedIterable<K>

Specified by:

collectDouble in interface ReversibleIterable<K>

Specified by:

collectDouble in interface RichIterable<K>

Specified by:

collectDouble in interface SortedMapIterable<K,V>

collectFloat

MutableFloatList collectFloat(FloatFunction<? super V> floatFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectFloat in interface OrderedIterable<K>

Specified by:

collectFloat in interface ReversibleIterable<K>

Specified by:

collectFloat in interface RichIterable<K>

Specified by:

collectFloat in interface SortedMapIterable<K,V>

collectInt

MutableIntList collectInt(IntFunction<? super V> intFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectInt in interface OrderedIterable<K>

Specified by:

collectInt in interface ReversibleIterable<K>

Specified by:

collectInt in interface RichIterable<K>

Specified by:

collectInt in interface SortedMapIterable<K,V>

collectLong

MutableLongList collectLong(LongFunction<? super V> longFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectLong in interface OrderedIterable<K>

Specified by:

collectLong in interface ReversibleIterable<K>

Specified by:

collectLong in interface RichIterable<K>

Specified by:

collectLong in interface SortedMapIterable<K,V>

collectShort

MutableShortList collectShort(ShortFunction<? super V> shortFunction)

Description copied from interface: RichIterable

Returns a new primitive 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());
 

Specified by:

collectShort in interface OrderedIterable<K>

Specified by:

collectShort in interface ReversibleIterable<K>

Specified by:

collectShort in interface RichIterable<K>

Specified by:

collectShort in interface SortedMapIterable<K,V>

collectWith

<P,
VV> MutableList<VV> collectWith(Function2<? super V,? super P,? extends VV> function,
 P parameter)

Description copied from interface: RichIterable

Same as 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));
 

Specified by:

collectWith in interface OrderedIterable<K>

Specified by:

collectWith in interface ReversibleIterable<K>

Specified by:

collectWith in interface RichIterable<K>

Specified by:

collectWith in interface SortedMapIterable<K,V>

Parameters:

function - A Function2 to use as the collect transformation function

parameter - A parameter to pass in for evaluation of the second argument P in function

Returns:

A new RichIterable that contains the transformed elements returned by Function2.value(Object, Object)

See Also:

• RichIterable.collect(Function)

collectIf

<R> MutableList<R> collectIf(Predicate<? super V> predicate,
 Function<? super V,? extends R> function)

Description copied from interface: RichIterable

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. This is the optimized equivalent of calling iterable.select(predicate).collect(function).

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());
 

Specified by:

collectIf in interface OrderedIterable<K>

Specified by:

collectIf in interface ReversibleIterable<K>

Specified by:

collectIf in interface RichIterable<K>

Specified by:

collectIf in interface SortedMapIterable<K,V>

flatCollect

<R> MutableList<R> flatCollect(Function<? super V,? extends Iterable<R>> function)

Description copied from interface: 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);
 

Specified by:

flatCollect in interface OrderedIterable<K>

Specified by:

flatCollect in interface ReversibleIterable<K>

Specified by:

flatCollect in interface RichIterable<K>

Specified by:

flatCollect in interface SortedMapIterable<K,V>

Parameters:

function - The Function to apply

Returns:

a new flattened collection produced by applying the given function

flatCollectWith

default <P,
R> MutableList<R> flatCollectWith(Function2<? super V,? super P,? extends Iterable<R>> function,
 P parameter)

Description copied from interface: RichIterable

Same as flatCollect, only with a Function2 that is passed an extra parameter.

Specified by:

flatCollectWith in interface OrderedIterable<K>

Specified by:

flatCollectWith in interface ReversibleIterable<K>

Specified by:

flatCollectWith in interface RichIterable<K>

Specified by:

flatCollectWith in interface SortedMapIterable<K,V>

Since:

9.2

tap

MutableSortedMap<K,V> tap(Procedure<? super V> procedure)

Description copied from interface: MapIterable

Executes the Procedure for each value of the map and returns this.

 return peopleByCity.tap(person -> LOGGER.info(person.getName()));
 

Specified by:

tap in interface MapIterable<K,V>

Specified by:

tap in interface MutableMapIterable<K,V>

Specified by:

tap in interface OrderedIterable<K>

Specified by:

tap in interface ReversibleIterable<K>

Specified by:

tap in interface RichIterable<K>

Specified by:

tap in interface SortedMapIterable<K,V>

See Also:

• RichIterable.forEach(Procedure)

select

MutableList<V> select(Predicate<? super V> predicate)

Description copied from interface: RichIterable

Returns all elements of the source collection that return true when evaluating the predicate. This method is also commonly called filter.

Example using a Java 8 lambda expression:

 RichIterable<Person> selected =
     people.select(person -> person.getAddress().getCity().equals("London"));
 

Specified by:

select in interface MutableMapIterable<K,V>

Specified by:

select in interface OrderedIterable<K>

Specified by:

select in interface ReversibleIterable<K>

Specified by:

select in interface RichIterable<K>

Specified by:

select in interface SortedMapIterable<K,V>

selectWith

<P> MutableList<V> selectWith(Predicate2<? super V,? super P> predicate,
 P parameter)

Description copied from interface: RichIterable

Similar to 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));
 

Specified by:

selectWith in interface MutableMapIterable<K,V>

Specified by:

selectWith in interface OrderedIterable<K>

Specified by:

selectWith in interface ReversibleIterable<K>

Specified by:

selectWith in interface RichIterable<K>

Specified by:

selectWith in interface SortedMapIterable<K,V>

Parameters:

predicate - a Predicate2 to use as the select criteria

parameter - a parameter to pass in for evaluation of the second argument P in predicate

See Also:

• RichIterable.select(Predicate)

reject

MutableList<V> reject(Predicate<? super V> predicate)

Description copied from interface: RichIterable

Returns all elements of the source collection that return false when evaluating of the predicate. This method is also sometimes called filterNot and is the equivalent of calling iterable.select(Predicates.not(predicate)).

Example using a Java 8 lambda expression:

 RichIterable<Person> rejected =
     people.reject(person -> person.person.getLastName().equals("Smith"));
 

Specified by:

reject in interface MutableMapIterable<K,V>

Specified by:

reject in interface OrderedIterable<K>

Specified by:

reject in interface ReversibleIterable<K>

Specified by:

reject in interface RichIterable<K>

Specified by:

reject in interface SortedMapIterable<K,V>

Parameters:

predicate - a Predicate to use as the reject criteria

Returns:

a RichIterable that contains elements that cause Predicate.accept(Object) method to evaluate to false

rejectWith

<P> MutableList<V> rejectWith(Predicate2<? super V,? super P> predicate,
 P parameter)

Description copied from interface: RichIterable

Similar to 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));
 

Specified by:

rejectWith in interface MutableMapIterable<K,V>

Specified by:

rejectWith in interface OrderedIterable<K>

Specified by:

rejectWith in interface ReversibleIterable<K>

Specified by:

rejectWith in interface RichIterable<K>

Specified by:

rejectWith in interface SortedMapIterable<K,V>

Parameters:

predicate - a Predicate2 to use as the select criteria

parameter - a parameter to pass in for evaluation of the second argument P in predicate

See Also:

• RichIterable.select(Predicate)

partition

PartitionMutableList<V> partition(Predicate<? super V> predicate)

Description copied from interface: RichIterable

Filters a collection into a PartitionedIterable based on the evaluation of the predicate.

Example using a Java 8 lambda expression:

 PartitionIterable<Person> newYorkersAndNonNewYorkers =
     people.partition(person -> person.getAddress().getState().getName().equals("New York"));
 

Specified by:

partition in interface MutableMapIterable<K,V>

Specified by:

partition in interface OrderedIterable<K>

Specified by:

partition in interface ReversibleIterable<K>

Specified by:

partition in interface RichIterable<K>

Specified by:

partition in interface SortedMapIterable<K,V>

partitionWith

<P> PartitionMutableList<V> partitionWith(Predicate2<? super V,? super P> predicate,
 P parameter)

Description copied from interface: RichIterable

Filters a collection into a PartitionIterable based on the evaluation of the predicate.

Example using a Java 8 lambda expression:

 PartitionIterable<Person> newYorkersAndNonNewYorkers =
     people.partitionWith((Person person, String state) -> person.getAddress().getState().getName().equals(state), "New York");
 

Specified by:

partitionWith in interface OrderedIterable<K>

Specified by:

partitionWith in interface ReversibleIterable<K>

Specified by:

partitionWith in interface RichIterable<K>

Specified by:

partitionWith in interface SortedMapIterable<K,V>

selectInstancesOf

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

Description copied from interface: RichIterable

Returns all elements of the source collection that are instances of the Class clazz.

 RichIterable<Integer> integers =
     List.mutable.with(new Integer(0), new Long(0L), new Double(0.0)).selectInstancesOf(Integer.class);
 

Specified by:

selectInstancesOf in interface MutableMapIterable<K,V>

Specified by:

selectInstancesOf in interface OrderedIterable<K>

Specified by:

selectInstancesOf in interface ReversibleIterable<K>

Specified by:

selectInstancesOf in interface RichIterable<K>

Specified by:

selectInstancesOf in interface SortedMapIterable<K,V>

zip

<S> MutableList<Pair<V,S>> zip(Iterable<S> that)

Description copied from interface: RichIterable

Returns a RichIterable formed from this RichIterable and another RichIterable by combining corresponding elements in pairs. If one of the two RichIterables is longer than the other, its remaining elements are ignored.

Specified by:

zip in interface MutableMapIterable<K,V>

Specified by:

zip in interface OrderedIterable<K>

Specified by:

zip in interface ReversibleIterable<K>

Specified by:

zip in interface RichIterable<K>

Specified by:

zip in interface SortedMapIterable<K,V>

Type Parameters:

S - the type of the second half of the returned pairs

Parameters:

that - The RichIterable providing the second half of each result pair

Returns:

A new RichIterable 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.

zipWithIndex

MutableList<Pair<V,Integer>> zipWithIndex()

Description copied from interface: RichIterable

Zips this RichIterable with its indices.

Specified by:

zipWithIndex in interface MutableMapIterable<K,V>

Specified by:

zipWithIndex in interface OrderedIterable<K>

Specified by:

zipWithIndex in interface ReversibleIterable<K>

Specified by:

zipWithIndex in interface RichIterable<K>

Specified by:

zipWithIndex in interface SortedMapIterable<K,V>

Returns:

A new RichIterable containing pairs consisting of all elements of this RichIterable paired with their index. Indices start at 0.

See Also:

• RichIterable.zip(Iterable)

toReversed

MutableSortedMap<K,V> toReversed()

Description copied from interface: ReversibleIterable

Returns a new ReversibleIterable in reverse order.

Specified by:

toReversed in interface ReversibleIterable<K>

Specified by:

toReversed in interface SortedMapIterable<K,V>

take

MutableSortedMap<K,V> take(int count)

Description copied from interface: ReversibleIterable

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.

Specified by:

take in interface ReversibleIterable<K>

Specified by:

take in interface SortedMapIterable<K,V>

Parameters:

count - the number of items to take.

takeWhile

MutableSortedMap<K,V> takeWhile(Predicate<? super V> predicate)

Description copied from interface: ReversibleIterable

Returns the initial elements that satisfy the Predicate. Short circuits at the first element which does not satisfy the Predicate.

Specified by:

takeWhile in interface OrderedIterable<K>

Specified by:

takeWhile in interface ReversibleIterable<K>

Specified by:

takeWhile in interface SortedMapIterable<K,V>

drop

MutableSortedMap<K,V> drop(int count)

Description copied from interface: ReversibleIterable

Returns an iterable after skipping the first count elements or an empty iterable if the count is greater than the length of the iterable.

Specified by:

drop in interface ReversibleIterable<K>

Specified by:

drop in interface SortedMapIterable<K,V>

Parameters:

count - the number of items to drop.

dropWhile

MutableSortedMap<K,V> dropWhile(Predicate<? super V> predicate)

Description copied from interface: ReversibleIterable

Returns the final elements that do not satisfy the Predicate. Short circuits at the first element which does satisfy the Predicate.

Specified by:

dropWhile in interface OrderedIterable<K>

Specified by:

dropWhile in interface ReversibleIterable<K>

Specified by:

dropWhile in interface SortedMapIterable<K,V>

partitionWhile

PartitionMutableList<V> partitionWhile(Predicate<? super V> predicate)

Description copied from interface: OrderedIterable

Returns a Partition of the initial elements that satisfy the Predicate and the remaining elements. Short circuits at the first element which does satisfy the Predicate.

Specified by:

partitionWhile in interface OrderedIterable<K>

Specified by:

partitionWhile in interface ReversibleIterable<K>

Specified by:

partitionWhile in interface SortedMapIterable<K,V>

distinct

MutableList<V> distinct()

Description copied from interface: OrderedIterable

Returns a new 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.

Specified by:

distinct in interface OrderedIterable<K>

Specified by:

distinct in interface ReversibleIterable<K>

Specified by:

distinct in interface SortedMapIterable<K,V>

Returns:

OrderedIterable of distinct elements

entrySet

MutableSet<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in interface SortedMap<K,V>

keySet

MutableSet<K> keySet()

The underlying set for the keys is sorted in ascending order according to their natural ordering or a custom comparator. However, Java 5 TreeMap returns a keySet that does not inherit from SortedSet therefore we have decided to return the keySet simply as a MutableSet to maintain Java 5 compatibility.

Specified by:

keySet in interface Map<K,V>

Specified by:

keySet in interface SortedMap<K,V>

headMap

MutableSortedMap<K,V> headMap(K toKey)

Specified by:

headMap in interface SortedMap<K,V>

tailMap

MutableSortedMap<K,V> tailMap(K fromKey)

Specified by:

tailMap in interface SortedMap<K,V>

subMap

MutableSortedMap<K,V> subMap(K fromKey,
 K toKey)

Specified by:

subMap in interface SortedMap<K,V>

values

MutableCollection<V> values()

Specified by:

values in interface Map<K,V>

Specified by:

values in interface SortedMap<K,V>

clone

MutableSortedMap<K,V> clone()

groupBy

<VV> MutableListMultimap<VV,V> groupBy(Function<? super V,? extends VV> function)

Description copied from interface: RichIterable

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.

Example using a Java 8 method reference:

 Multimap<String, Person> peopleByLastName =
     people.groupBy(Person::getLastName);
 

Specified by:

groupBy in interface MutableMapIterable<K,V>

Specified by:

groupBy in interface OrderedIterable<K>

Specified by:

groupBy in interface ReversibleIterable<K>

Specified by:

groupBy in interface RichIterable<K>

Specified by:

groupBy in interface SortedMapIterable<K,V>

groupByEach

<VV> MutableListMultimap<VV,V> groupByEach(Function<? super V,? extends Iterable<VV>> function)

Description copied from interface: RichIterable

Similar to RichIterable.groupBy(Function), except the result of evaluating function will return a collection of keys for each value.

Specified by:

groupByEach in interface MutableMapIterable<K,V>

Specified by:

groupByEach in interface OrderedIterable<K>

Specified by:

groupByEach in interface ReversibleIterable<K>

Specified by:

groupByEach in interface RichIterable<K>

Specified by:

groupByEach in interface SortedMapIterable<K,V>

groupByUniqueKey

default <VV> MutableMap<VV,V> groupByUniqueKey(Function<? super V,? extends VV> function)

Description copied from interface: RichIterable

For each element of the iterable, the function is evaluated, and the results of these evaluations are collected into a new map, where the transformed value is the key. The generated keys must each be unique, or else an exception is thrown.

Specified by:

groupByUniqueKey in interface MutableMapIterable<K,V>

Specified by:

groupByUniqueKey in interface RichIterable<K>

See Also:

• RichIterable.groupBy(Function)

withKeyValue

MutableSortedMap<K,V> withKeyValue(K key,
 V value)

Description copied from interface: MutableMapIterable

This method allows mutable, fixed size, and immutable maps the ability to add elements to their existing elements. In order to support fixed size maps, a new instance of a map would have to be returned including the keys and values of the original plus the additional key and value. In the case of mutable maps, the original map is modified and then returned. In order to use this method properly with mutable and fixed size maps the following approach must be taken:

 map = map.withKeyValue("new key", "new value");
 

In the case of FixedSizeMap, a new instance will be returned by withKeyValue, and any variables that previously referenced the original map will need to be redirected to reference the new instance. In the case of a FastMap or UnifiedMap, you will be replacing the reference to map with map, since FastMap and UnifiedMap will both return "this" after calling put on themselves.

Specified by:

withKeyValue in interface MutableMapIterable<K,V>

See Also:

• Map.put(Object, Object)

withMap

default MutableSortedMap<K,V> withMap(Map<? extends K,? extends V> map)

Description copied from interface: MutableMapIterable

Similar to Map.putAll(Map), but returns this instead of void

Specified by:

withMap in interface MutableMapIterable<K,V>

See Also:

• Map.putAll(Map)

withMapIterable

default MutableSortedMap<K,V> withMapIterable(MapIterable<? extends K,? extends V> mapIterable)

Specified by:

withMapIterable in interface MutableMapIterable<K,V>

withAllKeyValues

MutableSortedMap<K,V> withAllKeyValues(Iterable<? extends Pair<? extends K,? extends V>> keyValues)

Description copied from interface: MutableMapIterable

This method allows mutable, fixed size, and immutable maps the ability to add elements to their existing elements. In order to support fixed size maps, a new instance of a map would have to be returned including the keys and values of the original plus all the additional keys and values. In the case of mutable maps, the original map is modified and then returned. In order to use this method properly with mutable and fixed size maps the following approach must be taken:

 map = map.withAllKeyValues(FastList.newListWith(PairImpl.of("new key", "new value")));
 

In the case of FixedSizeMap, a new instance will be returned by withAllKeyValues, and any variables that previously referenced the original map will need to be redirected to reference the new instance. In the case of a FastMap or UnifiedMap, you will be replacing the reference to map with map, since FastMap and UnifiedMap will both return "this" after calling put on themselves.

Specified by:

withAllKeyValues in interface MutableMapIterable<K,V>

See Also:

• Map.put(Object, Object)

withAllKeyValueArguments

MutableSortedMap<K,V> withAllKeyValueArguments(Pair<? extends K,? extends V>... keyValuePairs)

Description copied from interface: MutableMapIterable

Convenience var-args version of withAllKeyValues

Specified by:

withAllKeyValueArguments in interface MutableMapIterable<K,V>

See Also:

• MutableMapIterable.withAllKeyValues(Iterable)

with

@Deprecated
default MutableSortedMap<K,V> with(Pair<K,V>... pairs)

Deprecated.

in 6.0 Use withAllKeyValueArguments(Pair[]) instead. Inlineable.

withoutKey

MutableSortedMap<K,V> withoutKey(K key)

Description copied from interface: MutableMapIterable

This method allows mutable, fixed size, and immutable maps the ability to remove elements from their existing elements. In order to support fixed size maps, a new instance of a map would have to be returned including the keys and values of the original minus the key and value to be removed. In the case of mutable maps, the original map is modified and then returned. In order to use this method properly with mutable and fixed size maps the following approach must be taken:

 map = map.withoutKey("key");
 

In the case of FixedSizeMap, a new instance will be returned by withoutKey, and any variables that previously referenced the original map will need to be redirected to reference the new instance. In the case of a FastMap or UnifiedMap, you will be replacing the reference to map with map, since FastMap and UnifiedMap will both return "this" after calling remove on themselves.

Specified by:

withoutKey in interface MutableMapIterable<K,V>

See Also:

• Map.remove(Object)

withoutAllKeys

MutableSortedMap<K,V> withoutAllKeys(Iterable<? extends K> keys)

Description copied from interface: MutableMapIterable

This method allows mutable, fixed size, and immutable maps the ability to remove elements from their existing elements. In order to support fixed size maps, a new instance of a map would have to be returned including the keys and values of the original minus all the keys and values to be removed. In the case of mutable maps, the original map is modified and then returned. In order to use this method properly with mutable and fixed size maps the following approach must be taken:

 map = map.withoutAllKeys(FastList.newListWith("key1", "key2"));
 

In the case of FixedSizeMap, a new instance will be returned by withoutAllKeys, and any variables that previously referenced the original map will need to be redirected to reference the new instance. In the case of a FastMap or UnifiedMap, you will be replacing the reference to map with map, since FastMap and UnifiedMap will both return "this" after calling remove on themselves.

Specified by:

withoutAllKeys in interface MutableMapIterable<K,V>

See Also:

• Map.remove(Object)