Modul speiger.src.collections
Package speiger.src.collections.longs.utils.maps

Klasse Long2DoubleMaps.EmptyMap

java.lang.Object
java.util.AbstractMap<Long,Double>
speiger.src.collections.longs.maps.abstracts.AbstractLong2DoubleMap
speiger.src.collections.longs.utils.maps.Long2DoubleMaps.EmptyMap
Alle implementierten Schnittstellen:
LongToDoubleFunction, Map<Long,Double>, Long2DoubleFunction, Long2DoubleMap
Umschließende Klasse:
Long2DoubleMaps
public static class Long2DoubleMaps.EmptyMap extends AbstractLong2DoubleMap
Empty Map impementation that is used for the emptyMap() function

  • Konstruktordetails

    • EmptyMap

      public EmptyMap()

  • Methodendetails

    • put

      public double put(long key, double value)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type Specific method to reduce boxing/unboxing of values
      Parameter:
      key - the key that should be inserted,
      value - the value that should be inserted
      Gibt zurück:
      the last present value or default return value.
      Siehe auch:

    • putIfAbsent

      public double putIfAbsent(long key, double value)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type Specific method to reduce boxing/unboxing of values
      Parameter:
      key - the key that should be inserted,
      value - the value that should be inserted
      Gibt zurück:
      the last present value or default return value.
      Siehe auch:

    • addTo

      public double addTo(long key, double value)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Helper method to add a primitives together. If key is not present then this functions as a put.
      Parameter:
      key - the key that should be inserted,
      value - the value that should be inserted / added
      Gibt zurück:
      the last present value or default return value.

    • subFrom

      public double subFrom(long key, double value)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Helper method to subtract from primitive from each other. If the key is not present it will just return the defaultValue How the implementation works is that it will subtract from the current value (if not present it will do nothing) and fence it to the Long2DoubleMap.getDefaultReturnValue() If the fence is reached the element will be automaticall removed
      Parameter:
      key - that should be subtract from
      value - that should be subtract
      Gibt zurück:
      the last present or default return value

    • remove

      public double remove(long key)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type Specific remove function to reduce boxing/unboxing
      Parameter:
      key - the element that should be removed
      Gibt zurück:
      the value that was removed or default return value

    • removeOrDefault

      public double removeOrDefault(long key, double defaultValue)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type-Specific Remove function with a default return value if wanted.
      Parameter:
      key - the element that should be removed
      defaultValue - the value that should be returned if the entry doesn't exist
      Gibt zurück:
      the value that was removed or default value
      Siehe auch:

    • remove

      public boolean remove(long key, double value)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type Specific remove function to reduce boxing/unboxing
      Parameter:
      key - the element that should be removed
      value - the expected value that should be found
      Gibt zurück:
      true if the key and value was found and removed
      Siehe auch:

    • get

      public double get(long key)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific get method to reduce boxing/unboxing
      Parameter:
      key - the key that is searched for
      Gibt zurück:
      the searched value or default return value

    • getOrDefault

      public double getOrDefault(long key, double defaultValue)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific getOrDefault method to reduce boxing/unboxing
      Angegeben von:
      getOrDefault in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      getOrDefault in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that is searched for
      defaultValue - the value that should be returned if the key is not present
      Gibt zurück:
      the searched value or defaultValue value

    • computeDouble

      public double computeDouble(long key, LongDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific compute method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDouble in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDouble in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value
      Gibt zurück:
      the result of the computation

    • computeDoubleIfAbsent

      public double computeDoubleIfAbsent(long key, Long2DoubleFunction mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific computeIfAbsent method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDoubleIfAbsent in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDoubleIfAbsent in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value if not present
      Gibt zurück:
      the result of the computed value or present value

    • computeDoubleIfPresent

      public double computeDoubleIfPresent(long key, LongDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific compute method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDoubleIfPresent in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDoubleIfPresent in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value if present
      Gibt zurück:
      the result of the default return value or present value

    • supplyDoubleIfAbsent

      public double supplyDoubleIfAbsent(long key, DoubleSupplier valueProvider)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Supplier based computeIfAbsent function to fill the most used usecase of this function If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      supplyDoubleIfAbsent in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      supplyDoubleIfAbsent in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      valueProvider - the value if not present
      Gibt zurück:
      the result of the computed value or present value

    • computeDoubleNonDefault

      public double computeDoubleNonDefault(long key, LongDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific compute method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDoubleNonDefault in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDoubleNonDefault in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value
      Gibt zurück:
      the result of the computation

    • computeDoubleIfAbsentNonDefault

      public double computeDoubleIfAbsentNonDefault(long key, Long2DoubleFunction mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific computeIfAbsent method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDoubleIfAbsentNonDefault in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDoubleIfAbsentNonDefault in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value if not present
      Gibt zurück:
      the result of the computed value or present value

    • computeDoubleIfPresentNonDefault

      public double computeDoubleIfPresentNonDefault(long key, LongDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific compute method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      computeDoubleIfPresentNonDefault in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      computeDoubleIfPresentNonDefault in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value if present
      Gibt zurück:
      the result of the default return value or present value

    • supplyDoubleIfAbsentNonDefault

      public double supplyDoubleIfAbsentNonDefault(long key, DoubleSupplier valueProvider)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Supplier based computeIfAbsent function to fill the most used usecase of this function If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      supplyDoubleIfAbsentNonDefault in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      supplyDoubleIfAbsentNonDefault in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be computed
      valueProvider - the value if not present
      Gibt zurück:
      the result of the computed value or present value

    • mergeDouble

      public double mergeDouble(long key, double value, DoubleDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Type Specific merge method to reduce boxing/unboxing If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      mergeDouble in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      mergeDouble in Klasse AbstractLong2DoubleMap
      Parameter:
      key - the key that should be be searched for
      value - the value that should be merged with
      mappingFunction - the operator that should generate the new Value
      Gibt zurück:
      the result of the merge

    • mergeAllDouble

      public void mergeAllDouble(Long2DoubleMap m, DoubleDoubleUnaryOperator mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Bulk method for merging Maps. If the generated value equals the getDefaultReturnValue it will simply not insert it since that is treated as "null". A "Null Value" will be treated as "Do not insert/remove" based on how the Java has specified it.
      Angegeben von:
      mergeAllDouble in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      mergeAllDouble in Klasse AbstractLong2DoubleMap
      Parameter:
      m - the entries that should be bulk added
      mappingFunction - the operator that should generate the new Value

    • keySet

      public LongSet keySet()
      Angegeben von:
      keySet in Schnittstelle Long2DoubleMap
      Angegeben von:
      keySet in Schnittstelle Map<Long,Double>
      Setzt außer Kraft:
      keySet in Klasse AbstractLong2DoubleMap

    • values

      public DoubleCollection values()
      Angegeben von:
      values in Schnittstelle Long2DoubleMap
      Angegeben von:
      values in Schnittstelle Map<Long,Double>
      Setzt außer Kraft:
      values in Klasse AbstractLong2DoubleMap

    • long2DoubleEntrySet

      public ObjectSet<Long2DoubleMap.Entry> long2DoubleEntrySet()
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      Type Sensitive EntrySet to reduce boxing/unboxing and optionally Temp Object Allocation.
      Gibt zurück:
      a EntrySet of the collection

    • copy

      public Long2DoubleMaps.EmptyMap copy()
      Beschreibung aus Schnittstelle kopiert: Long2DoubleMap
      A Function that does a shallow clone of the Map itself. This function is more optimized then a copy constructor since the Map does not have to be unsorted/resorted. It can be compared to Cloneable but with less exception risk
      Angegeben von:
      copy in Schnittstelle Long2DoubleMap
      Setzt außer Kraft:
      copy in Klasse AbstractLong2DoubleMap
      Gibt zurück:
      a Shallow Copy of the Map