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

Class AbstractMutableListMultimap<K,V>

java.lang.Object

org.eclipse.collections.impl.multimap.AbstractMultimap<K,V,C>

org.eclipse.collections.impl.multimap.AbstractMutableMultimap<K,V,MutableList<V>>

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

All Implemented Interfaces:

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

Direct Known Subclasses:

FastListMultimap, MultiReaderFastListMultimap

public abstract class AbstractMutableListMultimap<K,V>
extends AbstractMutableMultimap<K,V,MutableList<V>>
implements MutableListMultimap<K,V>

Method Summary

Modifier and Type	Method	Description
MutableListMultimap<K,V>	asSynchronized()	Returns a synchronized wrapper backed by this multimap.
<K2, V2> HashBagMultimap<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> HashBagMultimap<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> FastListMultimap<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.
void	forEachKeyMutableList(Procedure2<? super K,? super MutableList<V>> procedure)
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.

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

clear, get, getIfAbsentPutAll, isEmpty, keySet, put, putAll, putAll, readExternal, remove, removeAll, replaceValues, size, sizeDistinct, toMap, toMap, writeExternal

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

collectKeyMultiValues, collectKeysValues, collectValues, containsKey, containsKeyAndValue, containsValue, equals, forEachKey, forEachKeyMultiValues, forEachKeyValue, forEachValue, hashCode, keyBag, keyMultiValuePairsView, keysView, keyValuePairsView, multiValuesView, notEmpty, rejectKeysMultiValues, rejectKeysValues, selectKeysMultiValues, selectKeysValues, 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

flip, get, getIfAbsentPutAll, newEmpty, rejectKeysMultiValues, rejectKeysValues, removeAll, replaceValues, selectKeysMultiValues, selectKeysValues, withKeyMultiValues, withKeyValue

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

add, clear, flip, newEmpty, put, putAll, putAll, putAllPairs, putAllPairs, rejectKeysMultiValues, rejectKeysValues, remove, selectKeysMultiValues, selectKeysValues

Method Details

forEachKeyMutableList

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

Specified by:

forEachKeyMutableList in interface MutableListMultimap<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>

collectKeysValues

public <K2,
V2> HashBagMultimap<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> HashBagMultimap<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> FastListMultimap<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()