Class ImmutableSingletonMap<K,V>
java.lang.Object
org.eclipse.collections.impl.AbstractRichIterable<V>
org.eclipse.collections.impl.map.AbstractMapIterable<K,V>
org.eclipse.collections.impl.map.immutable.AbstractImmutableMap<K,V>
org.eclipse.collections.impl.map.immutable.ImmutableSingletonMap<K,V>
- All Implemented Interfaces:
Serializable
,Iterable<V>
,Map<K,
,V> InternalIterable<V>
,ImmutableMap<K,
,V> ImmutableMapIterable<K,
,V> MapIterable<K,
,V> UnsortedMapIterable<K,
,V> RichIterable<V>
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Nested Class Summary
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Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescription<K2,
V2> ImmutableMap <K2, V2> For each key and value of the map the function is evaluated.<R> ImmutableMap
<K, R> collectValues
(Function2<? super K, ? super V, ? extends R> function) For each key and value of the map the function is evaluated.boolean
containsKey
(Object key) boolean
containsValue
(Object value) 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.boolean
Follows the same general contract asMap.equals(Object)
.Return the MapIterable that is obtained by flipping the direction of this map and making the associations from value to key.void
forEachKey
(Procedure<? super K> procedure) Calls theprocedure
with each key of the map.void
forEachKeyValue
(Procedure2<? super K, ? super V> procedure) Calls theprocedure
with each key-value pair of the map.void
forEachValue
(Procedure<? super V> procedure) Calls the procedure with each value of the map.<P> void
forEachWith
(Procedure2<? super V, ? super P> procedure, P parameter) The procedure2 is evaluated for each element in the iterable with the specified parameter provided as the second argument.void
forEachWithIndex
(ObjectIntProcedure<? super V> objectIntProcedure) Iterates over the iterable passing each element and the current relative int index to the specified instance of ObjectIntProcedure.getOnly()
Returns the element if the iterable has exactly one element.int
hashCode()
Follows the same general contract asMap.hashCode()
.keySet()
keysView()
Returns an unmodifiable lazy iterable wrapped around the keySet for the map.RichIterable
<Pair<K, V>> Returns an unmodifiable lazy iterable of key/value pairs wrapped around the entrySet for the map.reject
(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.select
(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.int
size()
Returns the number of items in this iterable.toString()
Returns a string with the elements of the iterable separated by commas with spaces and enclosed in square brackets.values()
Returns an unmodifiable lazy iterable wrapped around the values for the map.private Object
Methods inherited from class org.eclipse.collections.impl.map.immutable.AbstractImmutableMap
aggregateBy, castToMap, clear, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, countBy, countByEach, countByWith, detectOptional, entrySet, flatCollect, flip, groupBy, groupByEach, groupByUniqueKey, iterator, newWithAllKeyValueArguments, newWithAllKeyValues, newWithKeyValue, newWithMap, newWithMapIterable, newWithoutAllKeys, newWithoutKey, partition, partitionWith, put, putAll, reject, rejectWith, remove, select, selectInstancesOf, selectWith, sumByDouble, sumByFloat, sumByInt, sumByLong, tap, toImmutable, toMap, zip, zipWithIndex
Methods inherited from class org.eclipse.collections.impl.map.AbstractMapIterable
allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, asLazy, chunk, contains, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, getFirst, getIfAbsent, getIfAbsentValue, getIfAbsentWith, getLast, getOrDefault, ifPresentApply, isAbsent, keyAndValueEquals, keyAndValueHashCode, noneSatisfy, noneSatisfyWith, toArray, toArray
Methods inherited from class org.eclipse.collections.impl.AbstractRichIterable
appendString, appendString, collect, collectIf, collectWith, containsAll, containsAllArguments, containsAllIterable, count, countWith, flatCollect, forEach, groupBy, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, into, isEmpty, max, max, maxBy, min, min, minBy, reject, rejectWith, select, selectWith, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toBag, toBiMap, toList, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy, zip, zipWithIndex
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.eclipse.collections.api.map.ImmutableMap
aggregateBy, aggregateInPlaceBy, flatCollectWith
Methods inherited from interface org.eclipse.collections.api.InternalIterable
forEach
Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, isEmpty, merge, putIfAbsent, remove, replace, replace, replaceAll
Methods inherited from interface org.eclipse.collections.api.map.MapIterable
getIfAbsent, getIfAbsentValue, getIfAbsentWith, getOrDefault, ifPresentApply, injectIntoKeyValue, parallelStream, spliterator, stream
Methods inherited from interface org.eclipse.collections.api.RichIterable
aggregateBy, allSatisfy, allSatisfyWith, anySatisfy, anySatisfyWith, appendString, appendString, appendString, asLazy, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectIf, collectInt, collectLong, collectShort, collectWith, contains, containsAll, containsAllArguments, containsAllIterable, containsAny, containsAnyIterable, containsBy, containsNone, containsNoneIterable, count, countBy, countByEach, countByWith, countWith, detect, detectIfNone, detectOptional, detectWith, detectWithIfNone, detectWithOptional, each, flatCollect, flatCollectBoolean, flatCollectByte, flatCollectChar, flatCollectDouble, flatCollectFloat, flatCollectInt, flatCollectLong, flatCollectShort, flatCollectWith, forEach, getAny, getFirst, getLast, groupBy, groupByAndCollect, groupByEach, groupByUniqueKey, injectInto, injectInto, injectInto, injectInto, injectInto, injectIntoDouble, injectIntoFloat, injectIntoInt, injectIntoLong, into, isEmpty, makeString, makeString, makeString, makeString, max, max, maxBy, maxByOptional, maxOptional, maxOptional, min, min, minBy, minByOptional, minOptional, minOptional, noneSatisfy, noneSatisfyWith, notEmpty, reduce, reduceInPlace, reduceInPlace, reject, rejectWith, select, selectWith, summarizeDouble, summarizeFloat, summarizeInt, summarizeLong, sumOfDouble, sumOfFloat, sumOfInt, sumOfLong, toArray, toArray, toBag, toBiMap, toImmutableBag, toImmutableBiMap, toImmutableList, toImmutableMap, toImmutableSet, toImmutableSortedBag, toImmutableSortedBag, toImmutableSortedBagBy, toImmutableSortedList, toImmutableSortedList, toImmutableSortedListBy, toImmutableSortedSet, toImmutableSortedSet, toImmutableSortedSetBy, toList, toMap, toMap, toSet, toSortedBag, toSortedBag, toSortedBagBy, toSortedList, toSortedList, toSortedListBy, toSortedMap, toSortedMap, toSortedMapBy, toSortedSet, toSortedSet, toSortedSetBy, zip, zipWithIndex
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Field Details
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serialVersionUID
private static final long serialVersionUID- See Also:
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key1
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value1
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Constructor Details
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ImmutableSingletonMap
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Method Details
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size
public int size()Description copied from interface:RichIterable
Returns the number of items in this iterable. -
keysView
Description copied from interface:MapIterable
Returns an unmodifiable lazy iterable wrapped around the keySet for the map.- Specified by:
keysView
in interfaceMapIterable<K,
V>
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valuesView
Description copied from interface:MapIterable
Returns an unmodifiable lazy iterable wrapped around the values for the map.- Specified by:
valuesView
in interfaceMapIterable<K,
V>
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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 interfaceMapIterable<K,
V>
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containsKey
- Specified by:
containsKey
in interfaceMap<K,
V> - Specified by:
containsKey
in interfaceMapIterable<K,
V> - See Also:
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containsValue
- Specified by:
containsValue
in interfaceMap<K,
V> - Specified by:
containsValue
in interfaceMapIterable<K,
V> - See Also:
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get
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keySet
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values
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toString
Description copied from class:AbstractRichIterable
Returns a string with the elements of the iterable separated by commas with spaces and enclosed in square brackets.Assert.assertEquals("[]", Lists.mutable.empty().toString()); Assert.assertEquals("[1]", Lists.mutable.with(1).toString()); Assert.assertEquals("[1, 2, 3]", Lists.mutable.with(1, 2, 3).toString());
- Specified by:
toString
in interfaceMapIterable<K,
V> - Specified by:
toString
in interfaceRichIterable<K>
- Overrides:
toString
in classAbstractRichIterable<V>
- Returns:
- a string representation of this collection.
- See Also:
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hashCode
public int hashCode()Description copied from interface:MapIterable
Follows the same general contract asMap.hashCode()
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equals
Description copied from interface:MapIterable
Follows the same general contract asMap.equals(Object)
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forEachKeyValue
Description copied from interface:MapIterable
Calls theprocedure
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 interfaceMapIterable<K,
V>
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flipUniqueValues
Description copied from interface:MapIterable
Return the MapIterable that is obtained by flipping the direction of this map and making the associations from value to key.MapIterable<Integer, String> map = this.newMapWithKeysValues(1, "1", 2, "2", 3, "3"); MapIterable<String, Integer> result = map.flipUniqueValues(); Assert.assertTrue(result.equals(UnifiedMap.newWithKeysValues("1", 1, "2", 2, "3", 3)));
- Specified by:
flipUniqueValues
in interfaceImmutableMap<K,
V> - Specified by:
flipUniqueValues
in interfaceImmutableMapIterable<K,
V> - Specified by:
flipUniqueValues
in interfaceMapIterable<K,
V> - Specified by:
flipUniqueValues
in interfaceUnsortedMapIterable<K,
V> - Overrides:
flipUniqueValues
in classAbstractImmutableMap<K,
V>
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forEachKey
Description copied from interface:MapIterable
Calls theprocedure
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 interfaceMapIterable<K,
V> - Overrides:
forEachKey
in classAbstractMapIterable<K,
V>
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forEachValue
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 interfaceMapIterable<K,
V> - Overrides:
forEachValue
in classAbstractMapIterable<K,
V>
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forEachWithIndex
Description copied from interface:InternalIterable
Iterates over the iterable passing each element and the current relative int index to the specified instance of ObjectIntProcedure.Example using a Java 8 lambda:
people.forEachWithIndex((Person person, int index) -> LOGGER.info("Index: " + index + " person: " + person.getName()));
Example using an anonymous inner class:
people.forEachWithIndex(new ObjectIntProcedure<Person>() { public void value(Person person, int index) { LOGGER.info("Index: " + index + " person: " + person.getName()); } });
- Specified by:
forEachWithIndex
in interfaceInternalIterable<K>
- Overrides:
forEachWithIndex
in classAbstractMapIterable<K,
V>
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forEachWith
Description copied from interface:InternalIterable
The procedure2 is evaluated for each element in the iterable with the specified parameter provided as the second argument.Example using a Java 8 lambda:
people.forEachWith((Person person, Person other) -> { if (person.isRelatedTo(other)) { LOGGER.info(person.getName()); } }, fred);
Example using an anonymous inner class:
people.forEachWith(new Procedure2<Person, Person>() { public void value(Person person, Person other) { if (person.isRelatedTo(other)) { LOGGER.info(person.getName()); } } }, fred);
- Specified by:
forEachWith
in interfaceInternalIterable<K>
- Overrides:
forEachWith
in classAbstractMapIterable<K,
V>
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select
Description copied from interface:MapIterable
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.MapIterable<City, Person> selected = peopleByCity.select((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
- Specified by:
select
in interfaceImmutableMap<K,
V> - Specified by:
select
in interfaceImmutableMapIterable<K,
V> - Specified by:
select
in interfaceMapIterable<K,
V> - Specified by:
select
in interfaceUnsortedMapIterable<K,
V> - Overrides:
select
in classAbstractImmutableMap<K,
V>
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reject
Description copied from interface:MapIterable
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.MapIterable<City, Person> rejected = peopleByCity.reject((city, person) -> city.getName().equals("Anytown") && person.getLastName().equals("Smith"));
- Specified by:
reject
in interfaceImmutableMap<K,
V> - Specified by:
reject
in interfaceImmutableMapIterable<K,
V> - Specified by:
reject
in interfaceMapIterable<K,
V> - Specified by:
reject
in interfaceUnsortedMapIterable<K,
V> - Overrides:
reject
in classAbstractImmutableMap<K,
V>
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collect
Description copied from interface:MapIterable
For each key and value of the map the function is evaluated. The results of these evaluations are returned in a new map. The map returned will use the values projected from the function rather than the original values.MapIterable<String, String> collected = peopleByCity.collect((City city, Person person) -> Pair.of(city.getCountry(), person.getAddress().getCity()));
- Specified by:
collect
in interfaceImmutableMap<K,
V> - Specified by:
collect
in interfaceImmutableMapIterable<K,
V> - Specified by:
collect
in interfaceMapIterable<K,
V> - Specified by:
collect
in interfaceUnsortedMapIterable<K,
V> - Overrides:
collect
in classAbstractImmutableMap<K,
V>
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collectValues
Description copied from interface:MapIterable
For each key and value of the map the function is evaluated. The results of these evaluations are returned in a new map. The map returned will use the values projected from the function rather than the original values.MapIterable<City, String> collected = peopleByCity.collectValues((City city, Person person) -> person.getFirstName() + " " + person.getLastName());
- Specified by:
collectValues
in interfaceImmutableMap<K,
V> - Specified by:
collectValues
in interfaceImmutableMapIterable<K,
V> - Specified by:
collectValues
in interfaceMapIterable<K,
V> - Specified by:
collectValues
in interfaceUnsortedMapIterable<K,
V> - Overrides:
collectValues
in classAbstractImmutableMap<K,
V>
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detect
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 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 interfaceMapIterable<K,
V> - Overrides:
detect
in classAbstractImmutableMap<K,
V>
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getOnly
Description copied from interface:RichIterable
Returns the element if the iterable has exactly one element. Otherwise, throwIllegalStateException
.- Specified by:
getOnly
in interfaceRichIterable<K>
- Overrides:
getOnly
in classAbstractMapIterable<K,
V> - Returns:
- an element of an iterable.
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writeReplace
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