Package org.eclipse.collections.impl.multimap.list

Class SynchronizedListMultimap<K,V>

java.lang.Object

org.eclipse.collections.impl.multimap.AbstractSynchronizedMultimap<K,V>

org.eclipse.collections.impl.multimap.list.SynchronizedListMultimap<K,V>

All Implemented Interfaces:

Serializable, ListMultimap<K,V>, MutableListMultimap<K,V>, Multimap<K,V>, MutableMultimap<K,V>, OrderedIterableMultimap<K,V>, ReversibleIterableMultimap<K,V>

public class SynchronizedListMultimap<K,V>
extends AbstractSynchronizedMultimap<K,V>
implements MutableListMultimap<K,V>, Serializable

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
SynchronizedListMultimap(MutableListMultimap<K,V> multimap)
SynchronizedListMultimap(MutableListMultimap<K,V> multimap, Object newLock)

Method Summary

Modifier and Type	Method	Description
MutableListMultimap<K,V>	asSynchronized()	Returns a synchronized wrapper backed by this multimap.
<K2, V2> MutableBagMultimap<K2,V2>	collectKeyMultiValues(Function<? super K,? extends K2> keyFunction, Function<? super V,? extends V2> valueFunction)	Returns a new multimap with the results of applying the specified keyFunction and valueFunction on each key and corresponding values of the source multimap.
<K2, V2> MutableBagMultimap<K2,V2>	collectKeysValues(Function2<? super K,? super V,Pair<K2,V2>> function)	Returns a new multimap with the results of applying the specified function on each key and value of the source multimap.
<V2> MutableListMultimap<K,V2>	collectValues(Function<? super V,? extends V2> function)	Returns a new multimap with the results of applying the specified function on each value of the source multimap.
MutableBagMultimap<V,K>	flip()	Given a Multimap from Domain -> Range return a multimap from Range -> Domain.
void	forEachKeyMutableList(Procedure2<? super K,? super MutableList<V>> procedure)
MutableList<V>	get(K key)	Returns a view of all values associated with the given key.
MutableList<V>	getIfAbsentPutAll(K key, Iterable<? extends V> values)	Puts values into multimap if there are no values already associated with key.
MutableListMultimap<K,V>	newEmpty()	Creates a new instance of the same implementation type, using the default capacity and growth parameters.
static <K, V> SynchronizedListMultimap<K,V>	of(MutableListMultimap<K,V> multimap)	This method will take a Multimap and wrap it directly in a SynchronizedListMultimap.
static <K, V> SynchronizedListMultimap<K,V>	of(MutableListMultimap<K,V> multimap, Object lock)	This method will take a Multimap and wrap it directly in a SynchronizedListMultimap.
MutableListMultimap<K,V>	rejectKeysMultiValues(Predicate2<? super K,? super RichIterable<V>> predicate)	Returns all elements of the source multimap that don't satisfy the predicate.
MutableListMultimap<K,V>	rejectKeysValues(Predicate2<? super K,? super V> predicate)	Returns all elements of the source multimap that don't satisfy the predicate.
MutableList<V>	removeAll(Object key)
MutableList<V>	replaceValues(K key, Iterable<? extends V> values)
MutableListMultimap<K,V>	selectKeysMultiValues(Predicate2<? super K,? super RichIterable<V>> predicate)	Returns all elements of the source multimap that satisfies the predicate.
MutableListMultimap<K,V>	selectKeysValues(Predicate2<? super K,? super V> predicate)	Returns all elements of the source multimap that satisfies the predicate.
ImmutableListMultimap<K,V>	toImmutable()	Returns an immutable copy of this Multimap if it is not already immutable.
MutableListMultimap<K,V>	toMutable()	Returns a mutable copy of this Multimap.
MutableListMultimap<K,V>	withKeyMultiValues(K key, V... values)	Puts the key / values combination into the MutableMultimap and returns the MutableMultimap (this).

Methods inherited from class org.eclipse.collections.impl.multimap.AbstractSynchronizedMultimap

add, clear, collectKeyMultiValues, collectKeysValues, collectValues, containsKey, containsKeyAndValue, containsValue, equals, forEachKey, forEachKeyMultiValues, forEachKeyValue, forEachValue, hashCode, isEmpty, keyBag, keyMultiValuePairsView, keySet, keysView, keyValuePairsView, multiValuesView, notEmpty, put, putAll, putAll, putAllPairs, putAllPairs, rejectKeysMultiValues, rejectKeysValues, remove, selectKeysMultiValues, selectKeysValues, size, sizeDistinct, toMap, toMap, toString, valuesView

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.eclipse.collections.api.multimap.Multimap

collectKeyMultiValues, collectKeysValues, collectValues, containsKey, containsKeyAndValue, containsValue, equals, forEachKey, forEachKeyMultiValues, forEachKeyValue, forEachValue, hashCode, isEmpty, keyBag, keyMultiValuePairsView, keySet, keysView, keyValuePairsView, multiValuesView, notEmpty, rejectKeysMultiValues, rejectKeysValues, selectKeysMultiValues, selectKeysValues, size, sizeDistinct, toMap, toMap, valuesView

Methods inherited from interface org.eclipse.collections.api.multimap.list.MutableListMultimap

withKeyValue

Methods inherited from interface org.eclipse.collections.api.multimap.MutableMultimap

add, clear, put, putAll, putAll, putAllPairs, putAllPairs, remove

Constructor Details

SynchronizedListMultimap

public SynchronizedListMultimap(MutableListMultimap<K,V> multimap)

SynchronizedListMultimap

public SynchronizedListMultimap(MutableListMultimap<K,V> multimap,
 Object newLock)

Method Details

of

public static <K,
V> SynchronizedListMultimap<K,V> of(MutableListMultimap<K,V> multimap)

This method will take a Multimap and wrap it directly in a SynchronizedListMultimap.

of

public static <K,
V> SynchronizedListMultimap<K,V> of(MutableListMultimap<K,V> multimap,
 Object lock)

This method will take a Multimap and wrap it directly in a SynchronizedListMultimap. Additionally, a developer specifies which lock to use with the collection.

newEmpty

public MutableListMultimap<K,V> newEmpty()

Description copied from interface: Multimap

Creates a new instance of the same implementation type, using the default capacity and growth parameters.

Specified by:

newEmpty in interface ListMultimap<K,V>

Specified by:

newEmpty in interface Multimap<K,V>

Specified by:

newEmpty in interface MutableListMultimap<K,V>

Specified by:

newEmpty in interface MutableMultimap<K,V>

Specified by:

newEmpty in interface OrderedIterableMultimap<K,V>

Specified by:

newEmpty in interface ReversibleIterableMultimap<K,V>

toMutable

public MutableListMultimap<K,V> toMutable()

Description copied from interface: Multimap

Returns a mutable copy of this Multimap.

Specified by:

toMutable in interface ListMultimap<K,V>

Specified by:

toMutable in interface Multimap<K,V>

toImmutable

public ImmutableListMultimap<K,V> toImmutable()

Description copied from interface: Multimap

Returns an immutable copy of this Multimap if it is not already immutable. If the Multimap is immutable, it will return itself.

The returned Multimap will be Serializable if this Multimap is Serializable.

Specified by:

toImmutable in interface ListMultimap<K,V>

Specified by:

toImmutable in interface Multimap<K,V>

forEachKeyMutableList

public void forEachKeyMutableList(Procedure2<? super K,? super MutableList<V>> procedure)

Specified by:

forEachKeyMutableList in interface MutableListMultimap<K,V>

replaceValues

public MutableList<V> replaceValues(K key,
 Iterable<? extends V> values)

Specified by:

replaceValues in interface MutableListMultimap<K,V>

Specified by:

replaceValues in interface MutableMultimap<K,V>

removeAll

public MutableList<V> removeAll(Object key)

Specified by:

removeAll in interface MutableListMultimap<K,V>

Specified by:

removeAll in interface MutableMultimap<K,V>

get

public MutableList<V> get(K key)

Description copied from interface: Multimap

Returns a view of all values associated with the given key.

If the given key does not exist, an empty RichIterable is returned.

Specified by:

get in interface ListMultimap<K,V>

Specified by:

get in interface Multimap<K,V>

Specified by:

get in interface MutableListMultimap<K,V>

Specified by:

get in interface MutableMultimap<K,V>

Specified by:

get in interface OrderedIterableMultimap<K,V>

Specified by:

get in interface ReversibleIterableMultimap<K,V>

Parameters:

key - the key to search for

withKeyMultiValues

public MutableListMultimap<K,V> withKeyMultiValues(K key,
 V... values)

Description copied from interface: MutableMultimap

Puts the key / values combination into the MutableMultimap and returns the MutableMultimap (this).

Specified by:

withKeyMultiValues in interface MutableListMultimap<K,V>

Specified by:

withKeyMultiValues in interface MutableMultimap<K,V>

Overrides:

withKeyMultiValues in class AbstractSynchronizedMultimap<K,V>

getIfAbsentPutAll

public MutableList<V> getIfAbsentPutAll(K key,
 Iterable<? extends V> values)

Description copied from interface: MutableMultimap

Puts values into multimap if there are no values already associated with key. Then returns a view of the values associated with key, like the result of Multimap.get(Object)

Specified by:

getIfAbsentPutAll in interface MutableListMultimap<K,V>

Specified by:

getIfAbsentPutAll in interface MutableMultimap<K,V>

flip

public MutableBagMultimap<V,K> flip()

Description copied from interface: Multimap

Given a Multimap from Domain -> Range return a multimap from Range -> Domain.

Specified by:

flip in interface ListMultimap<K,V>

Specified by:

flip in interface Multimap<K,V>

Specified by:

flip in interface MutableListMultimap<K,V>

Specified by:

flip in interface MutableMultimap<K,V>

selectKeysValues

public MutableListMultimap<K,V> selectKeysValues(Predicate2<? super K,? super V> predicate)

Description copied from interface: Multimap

Returns all elements of the source multimap that satisfies the predicate. This method is also commonly called filter.

e.g.
 return multimap.selectKeysValues(new Predicate2<Integer, Person>()
 {
     public boolean accept(Integer age, Person person)
     {
         return (age >= 18)
                  && (person.getAddress().getCity().equals("Metuchen"));
     }
 });
 

Specified by:

selectKeysValues in interface ListMultimap<K,V>

Specified by:

selectKeysValues in interface Multimap<K,V>

Specified by:

selectKeysValues in interface MutableListMultimap<K,V>

Specified by:

selectKeysValues in interface MutableMultimap<K,V>

Specified by:

selectKeysValues in interface OrderedIterableMultimap<K,V>

Specified by:

selectKeysValues in interface ReversibleIterableMultimap<K,V>

Parameters:

predicate - a Predicate2 to use as the select criteria

Returns:

Multimap, which contains elements as a result of the select criteria

rejectKeysValues

public MutableListMultimap<K,V> rejectKeysValues(Predicate2<? super K,? super V> predicate)

Description copied from interface: Multimap

Returns all elements of the source multimap that don't satisfy the predicate.

e.g.
 return multimap.rejectKeysValues(new Predicate2<Integer, Person>()
 {
     public boolean accept(Integer age, Person person)
     {
         return (age >= 18)
                  && (person.getAddress().getCity().equals("Metuchen"));
     }
 });
 

Specified by:

rejectKeysValues in interface ListMultimap<K,V>

Specified by:

rejectKeysValues in interface Multimap<K,V>

Specified by:

rejectKeysValues in interface MutableListMultimap<K,V>

Specified by:

rejectKeysValues in interface MutableMultimap<K,V>

Specified by:

rejectKeysValues in interface OrderedIterableMultimap<K,V>

Specified by:

rejectKeysValues in interface ReversibleIterableMultimap<K,V>

Parameters:

predicate - a Predicate2 to use as the reject criteria

Returns:

Multimap, which contains elements that don't satisfy the predicate

selectKeysMultiValues

public MutableListMultimap<K,V> selectKeysMultiValues(Predicate2<? super K,? super RichIterable<V>> predicate)

Description copied from interface: Multimap

Returns all elements of the source multimap that satisfies the predicate. This method is also commonly called filter.

e.g.
 return multimap.selectKeysMultiValues(new Predicate2<Integer, Iterable<Person>>()
 {
     public boolean accept(Integer age, Iterable<Person> values)
     {
         return (age >= 18)
                  && ((RichIterable<Person>)values.size() >= 2);
     }
 });
 

Specified by:

selectKeysMultiValues in interface ListMultimap<K,V>

Specified by:

selectKeysMultiValues in interface Multimap<K,V>

Specified by:

selectKeysMultiValues in interface MutableListMultimap<K,V>

Specified by:

selectKeysMultiValues in interface MutableMultimap<K,V>

Specified by:

selectKeysMultiValues in interface OrderedIterableMultimap<K,V>

Specified by:

selectKeysMultiValues in interface ReversibleIterableMultimap<K,V>

Parameters:

predicate - a Predicate2 to use as the select criteria

Returns:

Multimap, which contains elements as a result of the select criteria

rejectKeysMultiValues

public MutableListMultimap<K,V> rejectKeysMultiValues(Predicate2<? super K,? super RichIterable<V>> predicate)

Description copied from interface: Multimap

Returns all elements of the source multimap that don't satisfy the predicate.

e.g.
 return multimap.rejectKeysMultiValues(new Predicate2<Integer, Iterable<Person>>()
 {
     public boolean accept(Integer age, Iterable<Person> values)
     {
         return (age >= 18)
                  && ((RichIterable<Person>)values.size() >= 2);
     }
 });
 

Specified by:

rejectKeysMultiValues in interface ListMultimap<K,V>

Specified by:

rejectKeysMultiValues in interface Multimap<K,V>

Specified by:

rejectKeysMultiValues in interface MutableListMultimap<K,V>

Specified by:

rejectKeysMultiValues in interface MutableMultimap<K,V>

Specified by:

rejectKeysMultiValues in interface OrderedIterableMultimap<K,V>

Specified by:

rejectKeysMultiValues in interface ReversibleIterableMultimap<K,V>

Parameters:

predicate - a Predicate2 to use as the reject criteria

Returns:

Multimap, which contains elements that don't satisfy the predicate

collectKeysValues

public <K2,
V2> MutableBagMultimap<K2,V2> collectKeysValues(Function2<? super K,? super V,Pair<K2,V2>> function)

Description copied from interface: Multimap

Returns a new multimap with the results of applying the specified function on each key and value of the source multimap. This method is also commonly called transform or map.

e.g.
 return multimap.collectKeysValues(new Function2<Integer, Person, Pair<String, String>>()
 {
     public Pair<String, String> valueOf(Integer age, Person person)
     {
         return Tuples.pair(age.toString(), person.getLastName());
     }
 });
 

Specified by:

collectKeysValues in interface ListMultimap<K,V>

Specified by:

collectKeysValues in interface Multimap<K,V>

Specified by:

collectKeysValues in interface MutableListMultimap<K,V>

Specified by:

collectKeysValues in interface MutableMultimap<K,V>

Specified by:

collectKeysValues in interface OrderedIterableMultimap<K,V>

Parameters:

function - a Function2 to use for transformation

Returns:

Multimap, which contains elements as a result of the transformation

collectKeyMultiValues

public <K2,
V2> MutableBagMultimap<K2,V2> collectKeyMultiValues(Function<? super K,? extends K2> keyFunction,
 Function<? super V,? extends V2> valueFunction)

Description copied from interface: Multimap

Returns a new multimap with the results of applying the specified keyFunction and valueFunction on each key and corresponding values of the source multimap. This method is also commonly called transform or map.

e.g.
 return multimap.collectKeyMultiValues(each -> each + 1, Person::getLastName);
 

Specified by:

collectKeyMultiValues in interface ListMultimap<K,V>

Specified by:

collectKeyMultiValues in interface Multimap<K,V>

Specified by:

collectKeyMultiValues in interface MutableListMultimap<K,V>

Specified by:

collectKeyMultiValues in interface MutableMultimap<K,V>

Specified by:

collectKeyMultiValues in interface OrderedIterableMultimap<K,V>

Parameters:

keyFunction - Function to use transformation to get the key

valueFunction - Function to use transformation to get the values

Returns:

a new Multimap, which contains elements as a result of the transformation

collectValues

public <V2> MutableListMultimap<K,V2> collectValues(Function<? super V,? extends V2> function)

Description copied from interface: Multimap

Returns a new multimap with the results of applying the specified function on each value of the source multimap. This method is also commonly called transform or map.

e.g.
 return multimap.collectValues(new Function<Person, String>()
 {
     public String valueOf(Person person)
     {
         return person.getLastName();
     }
 });
 

Specified by:

collectValues in interface ListMultimap<K,V>

Specified by:

collectValues in interface Multimap<K,V>

Specified by:

collectValues in interface MutableListMultimap<K,V>

Specified by:

collectValues in interface MutableMultimap<K,V>

Specified by:

collectValues in interface OrderedIterableMultimap<K,V>

Specified by:

collectValues in interface ReversibleIterableMultimap<K,V>

Parameters:

function - a Function to use for transformation

Returns:

Multimap, which contains elements as a result of the transformation

asSynchronized

public MutableListMultimap<K,V> asSynchronized()

Description copied from interface: MutableMultimap

Returns a synchronized wrapper backed by this multimap. The preferred way of iterating over a synchronized multimap is to use the forEachKey(), forEachValue(), forEachKeyValue() and forEachKeyMultiValues methods which are properly synchronized internally.

  MutableMultimap synchedMultimap = multimap.asSynchronized();

  synchedMultimap.forEachKey(key -> ... );
  synchedMultimap.forEachValue(value -> ... );
  synchedMultimap.forEachKeyValue((key, value) -> ... );
  synchedMultimap.forEachKeyMultiValues((key, values) -> ... );
 

If you want to iterate imperatively over the keySet(), keysView(), valuesView(), or other views, you will need to protect the iteration by wrapping the code in a synchronized block on the multimap.

Specified by:

asSynchronized in interface MutableListMultimap<K,V>

Specified by:

asSynchronized in interface MutableMultimap<K,V>

Returns:

a synchronized view of this multimap.

See Also:

• MutableMapIterable.asSynchronized()