Klasse Object2ObjectMaps.SingletonMap<T,V>

java.lang.Object
java.util.AbstractMap<T,V>
speiger.src.collections.objects.maps.abstracts.AbstractObject2ObjectMap<T,V>
speiger.src.collections.objects.utils.maps.Object2ObjectMaps.SingletonMap<T,V>
Typparameter:
T - the keyType of elements maintained by this Collection
V - the keyType of elements maintained by this Collection
Alle implementierten Schnittstellen:
Function<T,V>, Map<T,V>, UnaryOperator<T,V>, Object2ObjectMap<T,V>
Umschließende Klasse:
Object2ObjectMaps

public static class Object2ObjectMaps.SingletonMap<T,V> extends AbstractObject2ObjectMap<T,V>
Singleton Map instance that is used in the helper method
  • Methodendetails

    • put

      public V put(T key, V value)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      Type Specific method to reduce boxing/unboxing of values
      Angegeben von:
      put in Schnittstelle Map<T,V>
      Angegeben von:
      put in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      put in Klasse AbstractMap<T,V>
      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 V putIfAbsent(T key, V value)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
    • rem

      public V rem(T key)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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
    • remOrDefault

      public V remOrDefault(T key, V defaultValue)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
    • getObject

      public V getObject(T key)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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
    • compute

      public V compute(T key, ObjectObjectUnaryOperator<T,V> mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      compute in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      compute in Klasse AbstractObject2ObjectMap<T,V>
      Parameter:
      key - the key that should be computed
      mappingFunction - the operator that should generate the value
      Gibt zurück:
      the result of the computation
    • computeIfAbsent

      public V computeIfAbsent(T key, UnaryOperator<T,V> mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      computeIfAbsent in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      computeIfAbsent in Klasse AbstractObject2ObjectMap<T,V>
      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
    • computeIfPresent

      public V computeIfPresent(T key, ObjectObjectUnaryOperator<T,V> mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      computeIfPresent in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      computeIfPresent in Klasse AbstractObject2ObjectMap<T,V>
      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
    • supplyIfAbsent

      public V supplyIfAbsent(T key, ObjectSupplier<V> valueProvider)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      supplyIfAbsent in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      supplyIfAbsent in Klasse AbstractObject2ObjectMap<T,V>
      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
    • merge

      public V merge(T key, V value, ObjectObjectUnaryOperator<V,V> mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      merge in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      merge in Klasse AbstractObject2ObjectMap<T,V>
      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
    • mergeAll

      public void mergeAll(Object2ObjectMap<T,V> m, ObjectObjectUnaryOperator<V,V> mappingFunction)
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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:
      mergeAll in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      mergeAll in Klasse AbstractObject2ObjectMap<T,V>
      Parameter:
      m - the entries that should be bulk added
      mappingFunction - the operator that should generate the new Value
    • copy

      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      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 Object2ObjectMap<T,V>
      Setzt außer Kraft:
      copy in Klasse AbstractObject2ObjectMap<T,V>
      Gibt zurück:
      a Shallow Copy of the Map
    • keySet

      public ObjectSet<T> keySet()
      Angegeben von:
      keySet in Schnittstelle Map<T,V>
      Angegeben von:
      keySet in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      keySet in Klasse AbstractObject2ObjectMap<T,V>
    • values

      public ObjectCollection<V> values()
      Angegeben von:
      values in Schnittstelle Map<T,V>
      Angegeben von:
      values in Schnittstelle Object2ObjectMap<T,V>
      Setzt außer Kraft:
      values in Klasse AbstractObject2ObjectMap<T,V>
    • object2ObjectEntrySet

      public ObjectSet<Object2ObjectMap.Entry<T,V>> object2ObjectEntrySet()
      Beschreibung aus Schnittstelle kopiert: Object2ObjectMap
      Type Sensitive EntrySet to reduce boxing/unboxing and optionally Temp Object Allocation.
      Gibt zurück:
      a EntrySet of the collection