Package org.eclipse.collections.impl.map

Class AbstractSynchronizedMapIterable<K,V>

java.lang.Object

org.eclipse.collections.impl.collection.AbstractSynchronizedRichIterable<V>

org.eclipse.collections.impl.map.AbstractSynchronizedMapIterable<K,V>

All Implemented Interfaces:

Iterable<K>, Map<K,V>, InternalIterable<K>, MapIterable<K,V>, MutableMapIterable<K,V>, RichIterable<K>

Direct Known Subclasses:

SynchronizedBiMap, SynchronizedMutableMap, SynchronizedSortedMap

public abstract class AbstractSynchronizedMapIterable<K,V>
extends AbstractSynchronizedRichIterable<V>
implements MutableMapIterable<K,V>

A synchronized view of a map.

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
V	add(Pair<K,V> keyValuePair)	This method allows mutable map the ability to add an element in the form of Pair.
<KK,VV> MutableMap<KK,VV>	aggregateBy(Function<? super V,? extends KK> groupBy, Function0<? extends VV> zeroValueFactory, Function2<? super VV,? super V,? extends VV> nonMutatingAggregator)	Applies an aggregate function over the iterable grouping results into a map based on the specific groupBy function.
<KK,VV> MutableMap<KK,VV>	aggregateInPlaceBy(Function<? super V,? extends KK> groupBy, Function0<? extends VV> zeroValueFactory, Procedure2<? super VV,? super V> mutatingAggregator)	Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function.
void	clear()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Pair<K,V>	detect(Predicate2<? super K,? super V> predicate)	Return the first key and value of the map for which the predicate evaluates to true when they are given as arguments.
Optional<Pair<K,V>>	detectOptional(Predicate2<? super K,? super V> predicate)	Return the first key and value of the map as an Optional for which the predicate evaluates to true when they are given as arguments.
void	forEachKey(Procedure<? super K> procedure)	Calls the procedure with each key of the map.
void	forEachKeyValue(Procedure2<? super K,? super V> procedure2)	Calls the procedure with each key-value pair of the map.
void	forEachValue(Procedure<? super V> procedure)	Calls the procedure with each value of the map.
V	get(Object key)
V	getIfAbsent(K key, Function0<? extends V> function)	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 Function0.
V	getIfAbsentPut(K key, Function0<? extends V> function)	Get and return the value in the Map at the specified key.
V	getIfAbsentPut(K key, V value)	Get and return the value in the Map at the specified key.
<P> V	getIfAbsentPutWith(K key, Function<? super P,? extends V> function, P parameter)	Get and return the value in the Map at the specified key.
V	getIfAbsentPutWithKey(K key, Function<? super K,? extends V> function)	Get and return the value in the Map at the specified key.
V	getIfAbsentValue(K key, V value)	Return the value in the Map that corresponds to the specified key, or if there is no value at the key, return value.
<P> V	getIfAbsentWith(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 function and parameter.
<VV> MutableMapIterable<VV,V>	groupByUniqueKey(Function<? super V,? extends VV> function)	For each element of the iterable, the function is evaluated and he results of these evaluations are collected into a new map, where the transformed value is the key.
<A> A	ifPresentApply(K key, Function<? super V,? extends A> function)	If there is a value in the Map that corresponds to the specified key return the result of applying the specified Function on the value, otherwise return null.
RichIterable<Pair<K,V>>	keyValuesView()	Returns an unmodifiable lazy iterable of key/value pairs wrapped around the entrySet for the map.
V	put(K key, V value)
void	putAll(Map<? extends K,? extends V> map)
V	remove(Object key)
V	removeKey(K key)	Remove an entry from the map at the specified key.
<V1> MutableObjectDoubleMap<V1>	sumByDouble(Function<? super V,? extends V1> groupBy, DoubleFunction<? super V> function)	Groups and sums the values using the two specified functions.
<V1> MutableObjectDoubleMap<V1>	sumByFloat(Function<? super V,? extends V1> groupBy, FloatFunction<? super V> function)	Groups and sums the values using the two specified functions.
<V1> MutableObjectLongMap<V1>	sumByInt(Function<? super V,? extends V1> groupBy, IntFunction<? super V> function)	Groups and sums the values using the two specified functions.
<V1> MutableObjectLongMap<V1>	sumByLong(Function<? super V,? extends V1> groupBy, LongFunction<? super V> function)	Groups and sums the values using the two specified functions.
V	updateValue(K key, Function0<? extends V> factory, Function<? super V,? extends V> function)	Looks up the value associated with key, applies the function to it, and replaces the value.
<P> V	updateValueWith(K key, Function0<? extends V> factory, Function2<? super V,? super P,? extends V> function, P parameter)	Same as MutableMapIterable.updateValue(Object, Function0, Function) with a Function2 and specified parameter which is passed to the function.

Methods inherited from class org.eclipse.collections.impl.collection.AbstractSynchronizedRichIterable

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, equals, flatCollect, forEach, forEachWith, forEachWithIndex, getFirst, getLast, getOnly, groupBy, groupByEach, groupByUniqueKey, hashCode, injectInto, injectInto, injectInto, injectInto, injectInto, into, isEmpty, iterator, makeString, makeString, makeString, max, max, maxBy, maxByOptional, maxOptional, maxOptional, min, min, minBy, minByOptional, minOptional, minOptional, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, select, selectWith, size, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, toString, zip, zipWithIndex

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

forEach, forEachWith, forEachWithIndex

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, entry, entrySet, equals, forEach, getOrDefault, hashCode, isEmpty, keySet, merge, of, of, of, of, of, of, of, of, of, of, of, ofEntries, putIfAbsent, remove, replace, replace, replaceAll, size, values

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

equals, hashCode, keysView, toString, valuesView

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

asSynchronized, asUnmodifiable, collect, collectValues, flip, flipUniqueValues, groupBy, groupByEach, newEmpty, partition, reject, reject, rejectWith, select, select, selectInstancesOf, selectWith, tap, toImmutable, withAllKeyValueArguments, withAllKeyValues, withKeyValue, withoutAllKeys, withoutKey, zip, zipWithIndex

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

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

allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collect, collectBoolean, collectBoolean, collectByte, collectByte, collectChar, collectChar, collectDouble, collectDouble, collectFloat, collectFloat, collectIf, collectIf, collectInt, collectInt, collectLong, collectLong, collectShort, collectShort, collectWith, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, flatCollect, getFirst, getLast, getOnly, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, into, isEmpty, makeString, makeString, makeString, max, max, maxBy, maxByOptional, maxOptional, maxOptional, min, min, minBy, minByOptional, minOptional, minOptional, noneSatisfy, noneSatisfyWith, notEmpty, partitionWith, reduce, reduceInPlace, reduceInPlace, reject, rejectWith, select, selectWith, size, 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, zip, zipWithIndex

Method Detail

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Specified by:

get in interface MapIterable<K,V>

See Also:

Map.get(Object)

getIfAbsent

public V getIfAbsent(K key,
                     Function0<? extends V> function)

Description copied from interface: MapIterable

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 Function0.

Specified by:

getIfAbsent in interface MapIterable<K,V>

getIfAbsentValue

public V getIfAbsentValue(K key,
                          V value)

Description copied from interface: MapIterable

Return the value in the Map that corresponds to the specified key, or if there is no value at the key, return value.

Specified by:

getIfAbsentValue in interface MapIterable<K,V>

getIfAbsentWith

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

Description copied from interface: MapIterable

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 function and parameter.

Specified by:

getIfAbsentWith in interface MapIterable<K,V>

ifPresentApply

public <A> A ifPresentApply(K key,
                            Function<? super V,? extends A> function)

Description copied from interface: MapIterable

If there is a value in the Map that corresponds to the specified key return the result of applying the specified Function on the value, otherwise return null.

Specified by:

ifPresentApply in interface MapIterable<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Specified by:

containsKey in interface MapIterable<K,V>

See Also:

Map.containsKey(Object)

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<K,V>

Specified by:

containsValue in interface MapIterable<K,V>

See Also:

Map.containsValue(Object)

forEachValue

public void forEachValue(Procedure<? super V> procedure)

Description copied from interface: MapIterable

Calls the procedure with each value of the map.

     Set<String> result = UnifiedSet.newSet();
     MutableMap<Integer, String> map = this.newMapWithKeysValues(1, "One", 2, "Two", 3, "Three", 4, "Four");
     map.forEachValue(new CollectionAddProcedure<String>(result));
     Verify.assertSetsEqual(UnifiedSet.newSetWith("One", "Two", "Three", "Four"), result);
 

Specified by:

forEachValue in interface MapIterable<K,V>

forEachKey

public void forEachKey(Procedure<? super K> procedure)

Description copied from interface: MapIterable

Calls the procedure with each key of the map.

     final Collection<Integer> result = new ArrayList<Integer>();
     MutableMap<Integer, String> map = this.newMapWithKeysValues(1, "1", 2, "2", 3, "3");
     map.forEachKey(new CollectionAddProcedure<Integer>(result));
     Verify.assertContainsAll(result, 1, 2, 3);
 

Specified by:

forEachKey in interface MapIterable<K,V>

forEachKeyValue

public void forEachKeyValue(Procedure2<? super K,? super V> procedure2)

Description copied from interface: MapIterable

Calls the procedure with each key-value pair of the map.

     final Collection<String> collection = new ArrayList<String>();
     MutableMap<Integer, String> map = this.newMapWithKeysValues(1, "One", 2, "Two", 3, "Three");
     map.forEachKeyValue((Integer key, String value) -> collection.add(String.valueOf(key) + value));
     Verify.assertContainsAll(collection, "1One", "2Two", "3Three");
 

Specified by:

forEachKeyValue in interface MapIterable<K,V>

detect

public Pair<K,V> detect(Predicate2<? super K,? super V> predicate)

Description copied from interface: MapIterable

Return the first key and value of the map for which the predicate evaluates to true when they are given as arguments. The predicate will only be evaluated until such pair is found or until all of the keys and values of the map have been used as arguments. That is, there may be keys and values of the map that are never used as arguments to the predicate. The result is null if predicate does not evaluate to true for any key/value combination.

 Pair<City, Person> detected =
     peopleByCity.detect((City city, Person person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
 

Specified by:

detect in interface MapIterable<K,V>

detectOptional

public Optional<Pair<K,V>> detectOptional(Predicate2<? super K,? super V> predicate)

Description copied from interface: MapIterable

Return the first key and value of the map as an Optional for which the predicate evaluates to true when they are given as arguments. The predicate will only be evaluated until such pair is found or until all of the keys and values of the map have been used as arguments. That is, there may be keys and values of the map that are never used as arguments to the predicate.

 Optional<Pair<City, Person>> detected =
     peopleByCity.detectOptional((city, person)
          -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
 

Specified by:

detectOptional in interface MapIterable<K,V>

getIfAbsentPut

public V getIfAbsentPut(K key,
                        Function0<? extends V> function)

Description copied from interface: MutableMapIterable

Get and return the value in the Map at the specified key. Alternatively, if there is no value in the map at the key, return the result of evaluating the specified Function0, and put that value in the map at the specified key.

Specified by:

getIfAbsentPut in interface MutableMapIterable<K,V>

getIfAbsentPut

public V getIfAbsentPut(K key,
                        V value)

Description copied from interface: MutableMapIterable

Get and return the value in the Map at the specified key. Alternatively, if there is no value in the map at the key, return the specified value, and put that value in the map at the specified key.

Specified by:

getIfAbsentPut in interface MutableMapIterable<K,V>

getIfAbsentPutWithKey

public V getIfAbsentPutWithKey(K key,
                               Function<? super K,? extends V> function)

Description copied from interface: MutableMapIterable

Get and return the value in the Map at the specified key. Alternatively, if there is no value in the map for that key return the result of evaluating the specified Function using the specified key, and put that value in the map at the specified key.

Specified by:

getIfAbsentPutWithKey in interface MutableMapIterable<K,V>

getIfAbsentPutWith

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

Description copied from interface: MutableMapIterable

Get and return the value in the Map at the specified key. Alternatively, if there is no value in the map for that key return the result of evaluating the specified Function using the specified parameter, and put that value in the map at the specified key.

Specified by:

getIfAbsentPutWith in interface MutableMapIterable<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface Map<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

removeKey

public V removeKey(K key)

Description copied from interface: MutableMapIterable

Remove an entry from the map at the specified key.

Specified by:

removeKey in interface MutableMapIterable<K,V>

Returns:

The value removed from entry at key, or null if not found.

See Also:

Map.remove(Object)

putAll

public void putAll(Map<? extends K,? extends V> map)

Specified by:

putAll in interface Map<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

add

public V add(Pair<K,V> keyValuePair)

Description copied from interface: MutableMapIterable

This method allows mutable map the ability to add an element in the form of Pair.

Specified by:

add in interface MutableMapIterable<K,V>

See Also:

Map.put(Object, Object)

updateValue

public V updateValue(K key,
                     Function0<? extends V> factory,
                     Function<? super V,? extends V> function)

Description copied from interface: MutableMapIterable

Looks up the value associated with key, applies the function to it, and replaces the value. If there is no value associated with key, starts it off with a value supplied by factory.

Specified by:

updateValue in interface MutableMapIterable<K,V>

updateValueWith

public <P> V updateValueWith(K key,
                             Function0<? extends V> factory,
                             Function2<? super V,? super P,? extends V> function,
                             P parameter)

Description copied from interface: MutableMapIterable

Same as MutableMapIterable.updateValue(Object, Function0, Function) with a Function2 and specified parameter which is passed to the function.

Specified by:

updateValueWith in interface MutableMapIterable<K,V>

groupByUniqueKey

public <VV> MutableMapIterable<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 he 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>

Overrides:

groupByUniqueKey in class AbstractSynchronizedRichIterable<V>

See Also:

RichIterable.groupBy(Function)

aggregateInPlaceBy

public <KK,VV> MutableMap<KK,VV> aggregateInPlaceBy(Function<? super V,? extends KK> groupBy,
                                                    Function0<? extends VV> zeroValueFactory,
                                                    Procedure2<? super VV,? super V> mutatingAggregator)

Description copied from interface: RichIterable

Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function. Aggregate results are required to be mutable as they will be changed in place by the procedure. A second function specifies the initial "zero" aggregate value to work with (i.e. new AtomicInteger(0)).

Specified by:

aggregateInPlaceBy in interface MutableMapIterable<K,V>

Specified by:

aggregateInPlaceBy in interface RichIterable<K>

aggregateBy

public <KK,VV> MutableMap<KK,VV> aggregateBy(Function<? super V,? extends KK> groupBy,
                                             Function0<? extends VV> zeroValueFactory,
                                             Function2<? super VV,? super V,? extends VV> nonMutatingAggregator)

Description copied from interface: RichIterable

Applies an aggregate function over the iterable grouping results into a map based on the specific groupBy function. Aggregate results are allowed to be immutable as they will be replaced in place in the map. A second function specifies the initial "zero" aggregate value to work with (i.e. Integer.valueOf(0)).

Specified by:

aggregateBy in interface MutableMapIterable<K,V>

Specified by:

aggregateBy in interface RichIterable<K>

keyValuesView

public RichIterable<Pair<K,V>> keyValuesView()

Description copied from interface: MapIterable

Returns an unmodifiable lazy iterable of key/value pairs wrapped around the entrySet for the map.

Specified by:

keyValuesView in interface MapIterable<K,V>

sumByInt

public <V1> MutableObjectLongMap<V1> sumByInt(Function<? super V,? extends V1> groupBy,
                                              IntFunction<? super V> function)

Description copied from interface: RichIterable

Groups and sums the values using the two specified functions.

Specified by:

sumByInt in interface MutableMapIterable<K,V>

Specified by:

sumByInt in interface RichIterable<K>

sumByFloat

public <V1> MutableObjectDoubleMap<V1> sumByFloat(Function<? super V,? extends V1> groupBy,
                                                  FloatFunction<? super V> function)

Description copied from interface: RichIterable

Groups and sums the values using the two specified functions.

Specified by:

sumByFloat in interface MutableMapIterable<K,V>

Specified by:

sumByFloat in interface RichIterable<K>

sumByLong

public <V1> MutableObjectLongMap<V1> sumByLong(Function<? super V,? extends V1> groupBy,
                                               LongFunction<? super V> function)

Description copied from interface: RichIterable

Groups and sums the values using the two specified functions.

Specified by:

sumByLong in interface MutableMapIterable<K,V>

Specified by:

sumByLong in interface RichIterable<K>

sumByDouble

public <V1> MutableObjectDoubleMap<V1> sumByDouble(Function<? super V,? extends V1> groupBy,
                                                   DoubleFunction<? super V> function)

Description copied from interface: RichIterable

Groups and sums the values using the two specified functions.

Specified by:

sumByDouble in interface MutableMapIterable<K,V>

Specified by:

sumByDouble in interface RichIterable<K>