Class AbstractDouble2DoubleMap
- All Implemented Interfaces:
Double2DoubleFunction,Double2DoubleMap,Function<Double,Double>,Serializable,DoubleUnaryOperator,Function<Double,Double>,Map<Double,Double>
- Direct Known Subclasses:
AbstractDouble2DoubleSortedMap,Double2DoubleArrayMap,Double2DoubleOpenCustomHashMap,Double2DoubleOpenHashMap
public abstract class AbstractDouble2DoubleMap extends AbstractDouble2DoubleFunction implements Double2DoubleMap, Serializable
Optional operations just throw an UnsupportedOperationException.
Generic versions of accessors delegate to the corresponding type-specific
counterparts following the interface rules (they take care of returning
null on a missing key).
As a further help, this class provides a BasicEntry inner
class that implements a type-specific version of Map.Entry;
it is particularly useful for those classes that do not implement their own
entries (e.g., most immutable maps).
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static classAbstractDouble2DoubleMap.BasicEntryThis class provides a basic but complete type-specific entry class for all those maps implementations that do not have entries on their own (e.g., most immutable maps).static classAbstractDouble2DoubleMap.BasicEntrySetThis class provides a basic implementation for an Entry set which forwards some queries to the map.Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap
Double2DoubleMap.Entry, Double2DoubleMap.FastEntrySet -
Method Summary
Modifier and Type Method Description booleancontainsKey(double k)Returns true if this function contains a mapping for the specified key.booleancontainsValue(double v)Returnstrueif this map maps one or more keys to the specified value.booleanequals(Object o)inthashCode()Returns a hash code for this map.booleanisEmpty()DoubleSetkeySet()Returns a type-specific-set view of the keys of this map.voidputAll(Map<? extends Double,? extends Double> m)StringtoString()DoubleCollectionvalues()Returns a type-specific-set view of the values of this map.Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDouble2DoubleFunction
defaultReturnValue, defaultReturnValueMethods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleFunction
applyAsDouble, get, put, removeMethods inherited from interface it.unimi.dsi.fastutil.doubles.Double2DoubleMap
clear, compute, compute, computeIfAbsent, computeIfAbsent, computeIfAbsentNullable, computeIfAbsentPartial, computeIfPresent, computeIfPresent, containsKey, containsValue, defaultReturnValue, defaultReturnValue, double2DoubleEntrySet, entrySet, get, getOrDefault, getOrDefault, merge, merge, put, putIfAbsent, putIfAbsent, remove, remove, remove, replace, replace, replace, replace, size
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Method Details
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containsValue
public boolean containsValue(double v)Description copied from interface:Double2DoubleMapReturnstrueif this map maps one or more keys to the specified value.- Specified by:
containsValuein interfaceDouble2DoubleMap- See Also:
Map.containsValue(Object)
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containsKey
public boolean containsKey(double k)Description copied from interface:Double2DoubleMapReturns true if this function contains a mapping for the specified key.- Specified by:
containsKeyin interfaceDouble2DoubleFunction- Specified by:
containsKeyin interfaceDouble2DoubleMap- Parameters:
k- the key.- Returns:
- true if this function associates a value to
key. - See Also:
Map.containsKey(Object)
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isEmpty
public boolean isEmpty() -
keySet
Returns a type-specific-set view of the keys of this map.The view is backed by the set returned by
Map.entrySet(). Note that no attempt is made at caching the result of this method, as this would require adding some attributes that lightweight implementations would not need. Subclasses may easily override this policy by calling this method and caching the result, but implementors are encouraged to write more efficient ad-hoc implementations.- Specified by:
keySetin interfaceDouble2DoubleMap- Specified by:
keySetin interfaceMap<Double,Double>- Returns:
- a set view of the keys of this map; it may be safely cast to a type-specific interface.
- See Also:
Map.keySet()
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values
Returns a type-specific-set view of the values of this map.The view is backed by the set returned by
Map.entrySet(). Note that no attempt is made at caching the result of this method, as this would require adding some attributes that lightweight implementations would not need. Subclasses may easily override this policy by calling this method and caching the result, but implementors are encouraged to write more efficient ad-hoc implementations.- Specified by:
valuesin interfaceDouble2DoubleMap- Specified by:
valuesin interfaceMap<Double,Double>- Returns:
- a set view of the values of this map; it may be safely cast to a type-specific interface.
- See Also:
Map.values()
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putAll
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hashCode
public int hashCode()Returns a hash code for this map. The hash code of a map is computed by summing the hash codes of its entries. -
equals
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toString
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