@Immutable public abstract class AbstractImmutableMap<K,V> extends AbstractMapIterable<K,V> implements com.gs.collections.api.map.ImmutableMap<K,V>, java.util.Map<K,V>
| Constructor and Description |
|---|
AbstractImmutableMap() |
| Modifier and Type | Method and Description |
|---|---|
<K2,V2> com.gs.collections.api.map.ImmutableMap<K2,V2> |
aggregateBy(com.gs.collections.api.block.function.Function<? super V,? extends K2> groupBy,
com.gs.collections.api.block.function.Function0<? extends V2> zeroValueFactory,
com.gs.collections.api.block.function.Function2<? super V2,? super V,? extends V2> nonMutatingAggregator)
Applies an aggregate function over the iterable grouping results into a map based on the specific groupBy function.
|
<K2,V2> com.gs.collections.api.map.ImmutableMap<K2,V2> |
aggregateInPlaceBy(com.gs.collections.api.block.function.Function<? super V,? extends K2> groupBy,
com.gs.collections.api.block.function.Function0<? extends V2> zeroValueFactory,
com.gs.collections.api.block.procedure.Procedure2<? super V2,? super V> mutatingAggregator)
Applies an aggregate procedure over the iterable grouping results into a Map based on the specific groupBy function.
|
java.util.Map<K,V> |
castToMap()
Returns a string representation of this map.
|
void |
clear() |
<R> com.gs.collections.api.collection.ImmutableCollection<R> |
collect(com.gs.collections.api.block.function.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> com.gs.collections.api.map.ImmutableMap<K2,V2> |
collect(com.gs.collections.api.block.function.Function2<? super K,? super V,com.gs.collections.api.tuple.Pair<K2,V2>> function)
For each key and value of the map the function is evaluated.
|
com.gs.collections.api.collection.primitive.ImmutableBooleanCollection |
collectBoolean(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableByteCollection |
collectByte(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableCharCollection |
collectChar(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableDoubleCollection |
collectDouble(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableFloatCollection |
collectFloat(com.gs.collections.api.block.function.primitive.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> com.gs.collections.api.collection.ImmutableCollection<R> |
collectIf(com.gs.collections.api.block.predicate.Predicate<? super V> predicate,
com.gs.collections.api.block.function.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.
|
com.gs.collections.api.collection.primitive.ImmutableIntCollection |
collectInt(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableLongCollection |
collectLong(com.gs.collections.api.block.function.primitive.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. |
com.gs.collections.api.collection.primitive.ImmutableShortCollection |
collectShort(com.gs.collections.api.block.function.primitive.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> com.gs.collections.api.map.ImmutableMap<K,R> |
collectValues(com.gs.collections.api.block.function.Function2<? super K,? super V,? extends R> function)
For each key and value of the map the function is evaluated.
|
com.gs.collections.api.tuple.Pair<K,V> |
detect(com.gs.collections.api.block.predicate.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.
|
java.util.Set<java.util.Map.Entry<K,V>> |
entrySet() |
<R> com.gs.collections.api.collection.ImmutableCollection<R> |
flatCollect(com.gs.collections.api.block.function.Function<? super V,? extends java.lang.Iterable<R>> function)
flatCollect is a special case of RichIterable.collect(Function). |
com.gs.collections.api.multimap.set.ImmutableSetMultimap<V,K> |
flip()
Given a map from Domain -> Range return a multimap from Range -> Domain.
|
com.gs.collections.api.map.ImmutableMap<V,K> |
flipUniqueValues()
Return the MapIterable that is obtained by flipping the direction of this map and making the associations
from value to key.
|
<VV> com.gs.collections.api.multimap.ImmutableMultimap<VV,V> |
groupBy(com.gs.collections.api.block.function.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> com.gs.collections.api.multimap.ImmutableMultimap<VV,V> |
groupByEach(com.gs.collections.api.block.function.Function<? super V,? extends java.lang.Iterable<VV>> function)
Similar to
RichIterable.groupBy(Function), except the result of evaluating function will return a collection of keys
for each value. |
<V1> com.gs.collections.api.map.ImmutableMap<V1,V> |
groupByUniqueKey(com.gs.collections.api.block.function.Function<? super V,? extends V1> 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.
|
java.util.Iterator<V> |
iterator() |
com.gs.collections.api.map.ImmutableMap<K,V> |
newWithAllKeyValueArguments(com.gs.collections.api.tuple.Pair<? extends K,? extends V>... keyValuePairs) |
com.gs.collections.api.map.ImmutableMap<K,V> |
newWithAllKeyValues(java.lang.Iterable<? extends com.gs.collections.api.tuple.Pair<? extends K,? extends V>> keyValues) |
com.gs.collections.api.map.ImmutableMap<K,V> |
newWithKeyValue(K key,
V value) |
com.gs.collections.api.map.ImmutableMap<K,V> |
newWithoutAllKeys(java.lang.Iterable<? extends K> keys) |
com.gs.collections.api.map.ImmutableMap<K,V> |
newWithoutKey(K key) |
com.gs.collections.api.partition.PartitionImmutableCollection<V> |
partition(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
Filters a collection into a PartitionedIterable based on the evaluation of the predicate.
|
<P> com.gs.collections.api.partition.PartitionImmutableCollection<V> |
partitionWith(com.gs.collections.api.block.predicate.Predicate2<? super V,? super P> predicate,
P parameter)
Filters a collection into a PartitionIterable based on the evaluation of the predicate.
|
V |
put(K key,
V value) |
void |
putAll(java.util.Map<? extends K,? extends V> map) |
com.gs.collections.api.collection.ImmutableCollection<V> |
reject(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
Returns all elements of the source collection that return false when evaluating of the predicate.
|
com.gs.collections.api.map.ImmutableMap<K,V> |
reject(com.gs.collections.api.block.predicate.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.
|
V |
remove(java.lang.Object key) |
com.gs.collections.api.collection.ImmutableCollection<V> |
select(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
Returns all elements of the source collection that return true when evaluating the predicate.
|
com.gs.collections.api.map.ImmutableMap<K,V> |
select(com.gs.collections.api.block.predicate.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> com.gs.collections.api.collection.ImmutableCollection<S> |
selectInstancesOf(java.lang.Class<S> clazz)
Returns all elements of the source collection that are instances of the Class
clazz. |
com.gs.collections.api.map.ImmutableMap<K,V> |
toImmutable()
Converts the UnsortedMapIterable to an immutable implementation.
|
com.gs.collections.api.map.MutableMap<K,V> |
toMap() |
<S> com.gs.collections.api.collection.ImmutableCollection<com.gs.collections.api.tuple.Pair<V,S>> |
zip(java.lang.Iterable<S> that)
Returns a
RichIterable formed from this RichIterable and another RichIterable by
combining corresponding elements in pairs. |
com.gs.collections.api.collection.ImmutableCollection<com.gs.collections.api.tuple.Pair<V,java.lang.Integer>> |
zipWithIndex()
Zips this
RichIterable with its indices. |
allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, flatCollect, forEach, forEachKey, forEachValue, forEachWith, forEachWithIndex, getFirst, getIfAbsent, getIfAbsentValue, getIfAbsentWith, getLast, groupBy, groupByEach, ifPresentApply, injectInto, injectInto, injectInto, injectInto, injectInto, isAbsent, isEmpty, keyAndValueEquals, keyAndValueHashCode, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, rejectWith, select, selectWith, selectWith, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toList, toMap, toSet, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, zip, zipWithIndexclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitcontainsKey, containsValue, equals, forEachKey, forEachKeyValue, forEachValue, get, getIfAbsent, getIfAbsentValue, getIfAbsentWith, hashCode, ifPresentApply, keysView, keyValuesView, toString, valuesViewallSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, count, countWith, detect, detectIfNone, detectWith, detectWithIfNone, flatCollect, getFirst, getLast, groupBy, groupByEach, injectInto, injectInto, injectInto, injectInto, injectInto, isEmpty, makeString, makeString, makeString, max, max, maxBy, min, min, minBy, noneSatisfy, noneSatisfyWith, notEmpty, reject, rejectWith, rejectWith, select, selectWith, selectWith, size, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toList, toMap, toSet, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedSet, toSortedSet, toSortedSetBy, zip, zipWithIndexpublic java.util.Map<K,V> castToMap()
This implementation creates an empty string buffer, appends a left brace, and iterates over the map's entrySet view, appending the string representation of each map.entry in turn. After appending each entry except the last, the string ", " is appended. Finally a right brace is appended. A string is obtained from the stringbuffer, and returned.
public com.gs.collections.api.map.ImmutableMap<K,V> toImmutable()
com.gs.collections.api.map.UnsortedMapIterablepublic java.util.Iterator<V> iterator()
iterator in interface java.lang.Iterable<V>public com.gs.collections.api.multimap.set.ImmutableSetMultimap<V,K> flip()
com.gs.collections.api.map.MapIterablepublic com.gs.collections.api.map.ImmutableMap<K,V> newWithAllKeyValues(java.lang.Iterable<? extends com.gs.collections.api.tuple.Pair<? extends K,? extends V>> keyValues)
public com.gs.collections.api.map.ImmutableMap<K,V> newWithAllKeyValueArguments(com.gs.collections.api.tuple.Pair<? extends K,? extends V>... keyValuePairs)
public com.gs.collections.api.map.ImmutableMap<K,V> newWithoutAllKeys(java.lang.Iterable<? extends K> keys)
public com.gs.collections.api.map.ImmutableMap<V,K> flipUniqueValues()
com.gs.collections.api.map.MapIterable
MapIterable map = this.newMapWithKeysValues(1, "1", 2, "2", 3, "3");
MapIterable result = map.flipUniqueValues();
Assert.assertTrue(result.equals(UnifiedMap.newWithKeysValues("1", 1, "2", 2, "3", 3)));
public <K2,V2> com.gs.collections.api.map.ImmutableMap<K2,V2> collect(com.gs.collections.api.block.function.Function2<? super K,? super V,com.gs.collections.api.tuple.Pair<K2,V2>> function)
com.gs.collections.api.map.MapIterablee.g.
peopleByCity.collect(new Function2<City, Person, String>()
{
public String value(City city, Person person)
{
return Pair.of(city.getCountry(), person.getAddress().getCity());
}
});
public <R> com.gs.collections.api.map.ImmutableMap<K,R> collectValues(com.gs.collections.api.block.function.Function2<? super K,? super V,? extends R> function)
com.gs.collections.api.map.MapIterablee.g.
peopleByCity.collectValues(new Function2<City, Person, String>()
{
public String value(City city, Person person)
{
return person.getFirstName() + " " + person.getLastName();
}
});
public com.gs.collections.api.map.ImmutableMap<K,V> select(com.gs.collections.api.block.predicate.Predicate2<? super K,? super V> predicate)
com.gs.collections.api.map.MapIterablee.g.
peopleByCity.select(new Predicate2<City, Person>()
{
public boolean accept(City city, Person person)
{
return city.getName().equals("Anytown") && person.getLastName().equals("Smith");
}
});
public com.gs.collections.api.map.ImmutableMap<K,V> reject(com.gs.collections.api.block.predicate.Predicate2<? super K,? super V> predicate)
com.gs.collections.api.map.MapIterablee.g.
peopleByCity.reject(new Predicate2<City, Person>()
{
public boolean accept(City city, Person person)
{
return city.getName().equals("Anytown") && person.getLastName().equals("Smith");
}
});
public com.gs.collections.api.tuple.Pair<K,V> detect(com.gs.collections.api.block.predicate.Predicate2<? super K,? super V> predicate)
com.gs.collections.api.map.MapIterablee.g.
peopleByCity.detect(new Predicate2<City, Person>()
{
public boolean accept(City city, Person person)
{
return city.getName().equals("Anytown") && person.getLastName().equals("Smith");
}
});
public <R> com.gs.collections.api.collection.ImmutableCollection<R> collect(com.gs.collections.api.block.function.Function<? super V,? extends R> function)
com.gs.collections.api.RichIterablee.g.
return people.collect(new Function<Person, String>()
{
public String valueOf(Person person)
{
return person.getFirstName() + " " + person.getLastName();
}
});
public com.gs.collections.api.collection.primitive.ImmutableBooleanCollection collectBoolean(com.gs.collections.api.block.function.primitive.BooleanFunction<? super V> booleanFunction)
com.gs.collections.api.RichIterableboolean 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.
e.g.
return people.collectBoolean(new BooleanFunction<Person>()
{
public boolean booleanValueOf(Person person)
{
return person.hasDrivingLicense();
}
});
collectBoolean in interface com.gs.collections.api.map.ImmutableMap<K,V>collectBoolean in interface com.gs.collections.api.RichIterable<V>collectBoolean in class AbstractMapIterable<K,V>public com.gs.collections.api.collection.primitive.ImmutableByteCollection collectByte(com.gs.collections.api.block.function.primitive.ByteFunction<? super V> byteFunction)
com.gs.collections.api.RichIterablebyte 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.
e.g.
return people.collectByte(new ByteFunction<Person>()
{
public byte byteValueOf(Person person)
{
return person.getCode();
}
});
public com.gs.collections.api.collection.primitive.ImmutableCharCollection collectChar(com.gs.collections.api.block.function.primitive.CharFunction<? super V> charFunction)
com.gs.collections.api.RichIterablechar 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.
e.g.
return people.collectChar(new CharFunction<Person>()
{
public char charValueOf(Person person)
{
return person.getMiddleInitial();
}
});
public com.gs.collections.api.collection.primitive.ImmutableDoubleCollection collectDouble(com.gs.collections.api.block.function.primitive.DoubleFunction<? super V> doubleFunction)
com.gs.collections.api.RichIterabledouble 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.
e.g.
return people.collectDouble(new DoubleFunction<Person>()
{
public double doubleValueOf(Person person)
{
return person.getMilesFromNorthPole();
}
});
public com.gs.collections.api.collection.primitive.ImmutableFloatCollection collectFloat(com.gs.collections.api.block.function.primitive.FloatFunction<? super V> floatFunction)
com.gs.collections.api.RichIterablefloat 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.
e.g.
return people.collectFloat(new FloatFunction<Person>()
{
public float floatValueOf(Person person)
{
return person.getHeightInInches();
}
});
public com.gs.collections.api.collection.primitive.ImmutableIntCollection collectInt(com.gs.collections.api.block.function.primitive.IntFunction<? super V> intFunction)
com.gs.collections.api.RichIterableint 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.
e.g.
return people.collectInt(new IntFunction<Person>()
{
public int intValueOf(Person person)
{
return person.getAge();
}
});
public com.gs.collections.api.collection.primitive.ImmutableLongCollection collectLong(com.gs.collections.api.block.function.primitive.LongFunction<? super V> longFunction)
com.gs.collections.api.RichIterablelong 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.
e.g.
return people.collectLong(new LongFunction<Person>()
{
public long longValueOf(Person person)
{
return person.getGuid();
}
});
public com.gs.collections.api.collection.primitive.ImmutableShortCollection collectShort(com.gs.collections.api.block.function.primitive.ShortFunction<? super V> shortFunction)
com.gs.collections.api.RichIterableshort 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.
e.g.
return people.collectShort(new ShortFunction<Person>()
{
public short shortValueOf(Person person)
{
return person.getNumberOfJunkMailItemsReceivedPerMonth();
}
});
public <R> com.gs.collections.api.collection.ImmutableCollection<R> collectIf(com.gs.collections.api.block.predicate.Predicate<? super V> predicate, com.gs.collections.api.block.function.Function<? super V,? extends R> function)
com.gs.collections.api.RichIterablee.g. Lists.mutable.of().with(1, 2, 3).collectIf(Predicates.notNull(), Functions.getToString())
public <R> com.gs.collections.api.collection.ImmutableCollection<R> flatCollect(com.gs.collections.api.block.function.Function<? super V,? extends java.lang.Iterable<R>> function)
com.gs.collections.api.RichIterableflatCollect 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 = new Function<Person, List<Address>>() {
public List<Address> valueOf(Person person) {
return person.getAddresses();
}
};
MutableList<Person> people = ...;
Using collect returns a collection of collections of addresses.
MutableList<List<Address>> addresses = people.collect(addressFunction);Using
flatCollect returns a single flattened list of addresses.
MutableList<Address> addresses = people.flatCollect(addressFunction);
public com.gs.collections.api.collection.ImmutableCollection<V> reject(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
com.gs.collections.api.RichIterablee.g.
return people.reject(new Predicate<Person>()
{
public boolean accept(Person person)
{
return person.person.getLastName().equals("Smith");
}
});
e.g.
return people.reject(Predicates.attributeEqual("lastName", "Smith"));
reject in interface com.gs.collections.api.map.ImmutableMap<K,V>reject in interface com.gs.collections.api.RichIterable<V>predicate - a Predicate to use as the reject criteriaPredicate.accept(Object) method to evaluate to falsepublic com.gs.collections.api.collection.ImmutableCollection<V> select(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
com.gs.collections.api.RichIterablee.g.
return people.select(new Predicate<Person>()
{
public boolean accept(Person person)
{
return person.getAddress().getCity().equals("Metuchen");
}
});
public com.gs.collections.api.partition.PartitionImmutableCollection<V> partition(com.gs.collections.api.block.predicate.Predicate<? super V> predicate)
com.gs.collections.api.RichIterablee.g.
return people.partition(new Predicate<Person>()
{
public boolean accept(Person person)
{
return person.getAddress().getState().getName().equals("New York");
}
});
public <P> com.gs.collections.api.partition.PartitionImmutableCollection<V> partitionWith(com.gs.collections.api.block.predicate.Predicate2<? super V,? super P> predicate, P parameter)
com.gs.collections.api.RichIterablee.g.
return people.partitionWith(new Predicate2<Person, String>()
{
public boolean accept(Person person, String state)
{
return person.getAddress().getState().getName().equals(state);
}
}, "New York");
public <S> com.gs.collections.api.collection.ImmutableCollection<S> selectInstancesOf(java.lang.Class<S> clazz)
com.gs.collections.api.RichIterableclazz.public <S> com.gs.collections.api.collection.ImmutableCollection<com.gs.collections.api.tuple.Pair<V,S>> zip(java.lang.Iterable<S> that)
com.gs.collections.api.RichIterableRichIterable 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.zip in interface com.gs.collections.api.map.ImmutableMap<K,V>zip in interface com.gs.collections.api.RichIterable<V>S - the type of the second half of the returned pairsthat - The RichIterable providing the second half of each result pairRichIterable 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.public com.gs.collections.api.collection.ImmutableCollection<com.gs.collections.api.tuple.Pair<V,java.lang.Integer>> zipWithIndex()
com.gs.collections.api.RichIterableRichIterable with its indices.zipWithIndex in interface com.gs.collections.api.map.ImmutableMap<K,V>zipWithIndex in interface com.gs.collections.api.RichIterable<V>RichIterable containing pairs consisting of all elements of this RichIterable
paired with their index. Indices start at 0.RichIterable.zip(Iterable)public <VV> com.gs.collections.api.multimap.ImmutableMultimap<VV,V> groupBy(com.gs.collections.api.block.function.Function<? super V,? extends VV> function)
com.gs.collections.api.RichIterablee.g.
return people.groupBy(new Function<Person, String>()
{
public String value(Person person)
{
return person.getFirstName() + " " + person.getLastName();
}
});
public <VV> com.gs.collections.api.multimap.ImmutableMultimap<VV,V> groupByEach(com.gs.collections.api.block.function.Function<? super V,? extends java.lang.Iterable<VV>> function)
com.gs.collections.api.RichIterableRichIterable.groupBy(Function), except the result of evaluating function will return a collection of keys
for each value.public <V1> com.gs.collections.api.map.ImmutableMap<V1,V> groupByUniqueKey(com.gs.collections.api.block.function.Function<? super V,? extends V1> function)
com.gs.collections.api.RichIterablepublic <K2,V2> com.gs.collections.api.map.ImmutableMap<K2,V2> aggregateInPlaceBy(com.gs.collections.api.block.function.Function<? super V,? extends K2> groupBy, com.gs.collections.api.block.function.Function0<? extends V2> zeroValueFactory, com.gs.collections.api.block.procedure.Procedure2<? super V2,? super V> mutatingAggregator)
com.gs.collections.api.RichIterablepublic <K2,V2> com.gs.collections.api.map.ImmutableMap<K2,V2> aggregateBy(com.gs.collections.api.block.function.Function<? super V,? extends K2> groupBy, com.gs.collections.api.block.function.Function0<? extends V2> zeroValueFactory, com.gs.collections.api.block.function.Function2<? super V2,? super V,? extends V2> nonMutatingAggregator)
com.gs.collections.api.RichIterable