Package org.eclipse.collections.api.map.primitive

Interface DoubleDoubleMap

All Superinterfaces:

DoubleIterable, DoubleValuesMap, PrimitiveIterable

All Known Subinterfaces:

ImmutableDoubleDoubleMap, MutableDoubleDoubleMap

All Known Implementing Classes:

DoubleDoubleHashMap, SynchronizedDoubleDoubleMap, UnmodifiableDoubleDoubleMap

public interface DoubleDoubleMap
extends DoubleValuesMap

This file was automatically generated from template file primitivePrimitiveMap.stg.

Since:

3.0.

Method Summary

Modifier and Type	Method	Description
boolean	containsKey(double key)	Returns whether or not the key is present in the map.
boolean	equals(Object o)	Follows the same general contract as Map.equals(Object).
DoubleDoubleMap	flipUniqueValues()	Return the DoubleDoubleMap that is obtained by flipping the direction of this map and making the associations from value to key.
void	forEachKey(DoubleProcedure procedure)	Iterates through each key in the map, invoking the procedure for each.
void	forEachKeyValue(DoubleDoubleProcedure procedure)	Iterates through each key/value pair in the map, invoking the procedure for each.
double	get(double key)	Retrieves the value associated with the key.
double	getIfAbsent(double key, double ifAbsent)	Retrieves the value associated with the key, returning the specified default value if no such mapping exists.
double	getOrThrow(double key)	Retrieves the value associated with the key, throwing an IllegalStateException if no such mapping exists.
int	hashCode()	Follows the same general contract as Map.hashCode().
default <IV> IV	injectIntoKeyValue(IV injectedValue, ObjectDoubleDoubleToObjectFunction<? super IV,? extends IV> function)	Implements the injectInto pattern with each key/value pair of the map.
MutableDoubleSet	keySet()	Returns a set containing all the keys in this map.
LazyDoubleIterable	keysView()	Returns a view of the keys in this map.
RichIterable<DoubleDoublePair>	keyValuesView()	Returns a view of the key/value pairs in this map.
DoubleDoubleMap	reject(DoubleDoublePredicate predicate)	Return a copy of this map containing only the key/value pairs that do not match the predicate.
DoubleDoubleMap	select(DoubleDoublePredicate predicate)	Return a copy of this map containing only the key/value pairs that match the predicate.
ImmutableDoubleDoubleMap	toImmutable()	Returns a copy of this map that is immutable (if this map is mutable) or itself if it is already immutable.
String	toString()	Follows the same general contract as AbstractMap.toString()

Methods inherited from interface org.eclipse.collections.api.DoubleIterable

allSatisfy, anySatisfy, asLazy, average, averageIfEmpty, chunk, collect, collectBoolean, collectByte, collectChar, collectDouble, collectFloat, collectInt, collectLong, collectShort, contains, containsAll, containsAll, containsAny, containsAny, containsNone, containsNone, count, detectIfNone, doubleIterator, each, flatCollect, forEach, injectInto, injectIntoBoolean, injectIntoByte, injectIntoChar, injectIntoDouble, injectIntoFloat, injectIntoInt, injectIntoLong, injectIntoShort, max, maxIfEmpty, median, medianIfEmpty, min, minIfEmpty, noneSatisfy, reduce, reduceIfEmpty, reject, select, sum, summaryStatistics, toArray, toArray, toBag, toList, toSet, toSortedArray, toSortedList, toSortedList, toSortedListBy, toSortedListBy

Methods inherited from interface org.eclipse.collections.api.map.primitive.DoubleValuesMap

collect, containsValue, forEachValue, reject, select, tap, values

Methods inherited from interface org.eclipse.collections.api.PrimitiveIterable

appendString, appendString, appendString, isEmpty, makeString, makeString, makeString, notEmpty, size

Method Details

get

double get(double key)

Retrieves the value associated with the key. If no mapping exists for the key, the default value (usually 0) is returned.

Parameters:

key - the key

Returns:

the value associated with the key, or the default value if no such mapping exists

getIfAbsent

double getIfAbsent(double key,
 double ifAbsent)

Retrieves the value associated with the key, returning the specified default value if no such mapping exists.

Parameters:

key - the key

ifAbsent - the default value to return if no mapping exists for key

Returns:

the value associated with the key, or ifAbsent if no such mapping exists.

getOrThrow

double getOrThrow(double key)

Retrieves the value associated with the key, throwing an IllegalStateException if no such mapping exists.

Parameters:

key - the key

Returns:

the value associated with the key

Throws:

IllegalStateException - if no mapping exists for the key

containsKey

boolean containsKey(double key)

Returns whether or not the key is present in the map.

Parameters:

key - the key

Returns:

if a mapping exists in this map for the key

forEachKey

void forEachKey(DoubleProcedure procedure)

Iterates through each key in the map, invoking the procedure for each.

Parameters:

procedure - the procedure to invoke for each key

forEachKeyValue

void forEachKeyValue(DoubleDoubleProcedure procedure)

Iterates through each key/value pair in the map, invoking the procedure for each.

Parameters:

procedure - the procedure to invoke for each key/value pair

injectIntoKeyValue

default <IV> IV injectIntoKeyValue(IV injectedValue,
 ObjectDoubleDoubleToObjectFunction<? super IV,? extends IV> function)

Implements the injectInto pattern with each key/value pair of the map.

Parameters:

value - to be injected into the map

function - to apply to the injected value and key/value pairs

Returns:

result of injecting the injectedValue into the map

Since:

11.1

keysView

LazyDoubleIterable keysView()

Returns a view of the keys in this map. This iterable is backed by the map, so any modifications to the underlying map will be reflected in the keys returned by the iterable.

Returns:

a view of the keys in this map

Since:

5.0

keyValuesView

RichIterable<DoubleDoublePair> keyValuesView()

Returns a view of the key/value pairs in this map. This iterable is backed by the map, so any modifications to the underlying map will be reflected in the pairs returned by the iterable.

Returns:

a view of the keys in this map

Since:

5.0

flipUniqueValues

DoubleDoubleMap flipUniqueValues()

Return the DoubleDoubleMap that is obtained by flipping the direction of this map and making the associations from value to key.

Throws:

IllegalStateException - if the DoubleDoubleMap contains duplicate values.

Since:

9.0

select

DoubleDoubleMap select(DoubleDoublePredicate predicate)

Return a copy of this map containing only the key/value pairs that match the predicate.

Parameters:

predicate - the predicate to determine which key/value pairs in this map should be included in the returned map

Returns:

a copy of this map with the matching key/value pairs

reject

DoubleDoubleMap reject(DoubleDoublePredicate predicate)

Return a copy of this map containing only the key/value pairs that do not match the predicate.

Parameters:

predicate - the predicate to determine which key/value pairs in this map should be excluded from the returned map

Returns:

a copy of this map without the matching key/value pairs

equals

boolean equals(Object o)

Follows the same general contract as Map.equals(Object).

Overrides:

equals in class Object

hashCode

int hashCode()

Follows the same general contract as Map.hashCode().

Overrides:

hashCode in class Object

toString

String toString()

Follows the same general contract as AbstractMap.toString()

Specified by:

toString in interface PrimitiveIterable

Overrides:

toString in class Object

Returns:

a string representation of this DoubleDoubleMap

See Also:

• AbstractCollection.toString()

toImmutable

ImmutableDoubleDoubleMap toImmutable()

Returns a copy of this map that is immutable (if this map is mutable) or itself if it is already immutable.

Returns:

an immutable map that is equivalent to this one

keySet

MutableDoubleSet keySet()

Returns a set containing all the keys in this map. The set is backed by the map, so any modifications to the returned set will affect this map.

Returns:

a mutable set containing the keys in this map