Package org.eclipse.collections.api.multimap.bag

Interface MutableBagIterableMultimap<K,​V>

    • Method Detail

      • selectKeysValues

        MutableBagIterableMultimap<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 BagMultimap<K,​V>
        Specified by:
        selectKeysValues in interface Multimap<K,​V>
        Specified by:
        selectKeysValues in interface MutableMultimap<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

        MutableBagIterableMultimap<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 BagMultimap<K,​V>
        Specified by:
        rejectKeysValues in interface Multimap<K,​V>
        Specified by:
        rejectKeysValues in interface MutableMultimap<K,​V>
        Parameters:
        predicate - a Predicate2 to use as the reject criteria
        Returns:
        Multimap, which contains elements that don't satisfy the predicate

      • selectKeysMultiValues

        MutableBagIterableMultimap<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 BagMultimap<K,​V>
        Specified by:
        selectKeysMultiValues in interface Multimap<K,​V>
        Specified by:
        selectKeysMultiValues in interface MutableMultimap<K,​V>
        Parameters:
        predicate - a Predicate2 to use as the select criteria
        Returns:
        Multimap, which contains elements as a result of the select criteria

      • collectKeysValues

        <K2,​V2> MutableBagIterableMultimap<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 Multimap<K,​V>
        Specified by:
        collectKeysValues in interface MutableMultimap<K,​V>
        Parameters:
        function - a Function2 to use for transformation
        Returns:
        Multimap, which contains elements as a result of the transformation

      • collectKeyMultiValues

        <K2,​V2> MutableBagIterableMultimap<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 Multimap<K,​V>
        Specified by:
        collectKeyMultiValues in interface MutableMultimap<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

        <V2> MutableMultimap<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 Multimap<K,​V>
        Specified by:
        collectValues in interface MutableMultimap<K,​V>
        Parameters:
        function - a Function to use for transformation
        Returns:
        Multimap, which contains elements as a result of the transformation

      • asSynchronized

        MutableBagIterableMultimap<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 MutableMultimap<K,​V>
        Returns:
        a synchronized view of this multimap.
        See Also:
        MutableMapIterable.asSynchronized()