Package it.unimi.dsi.fastutil.objects

Class Reference2LongMaps.UnmodifiableMap<K>

java.lang.Object
it.unimi.dsi.fastutil.objects.AbstractReference2LongFunction<K>
it.unimi.dsi.fastutil.objects.Reference2LongFunctions.UnmodifiableFunction<K>
it.unimi.dsi.fastutil.objects.Reference2LongMaps.UnmodifiableMap<K>
All Implemented Interfaces:
it.unimi.dsi.fastutil.Function<K,​java.lang.Long>, it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>, Reference2LongMap<K>, java.io.Serializable, java.util.function.Function<K,​java.lang.Long>, java.util.function.ToLongFunction<K>, java.util.Map<K,​java.lang.Long>
Direct Known Subclasses:
Reference2LongSortedMaps.UnmodifiableSortedMap
Enclosing class:
Reference2LongMaps
public static class Reference2LongMaps.UnmodifiableMap<K>
extends Reference2LongFunctions.UnmodifiableFunction<K>
implements Reference2LongMap<K>, java.io.Serializable
An unmodifiable wrapper class for maps.
See Also:
Serialized Form

  • Nested Class Summary

    Nested classes/interfaces inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongMap

    Reference2LongMap.Entry<K>, Reference2LongMap.FastEntrySet<K>

  • Method Summary

    Modifier and Type Method Description
    java.lang.Long compute​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)  
    long computeIfAbsent​(K key, it.unimi.dsi.fastutil.objects.Reference2LongFunction<? super K> mappingFunction)
    If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.
    java.lang.Long computeIfAbsent​(K key, java.util.function.Function<? super K,​? extends java.lang.Long> mappingFunction)  
    long computeIfAbsent​(K key, java.util.function.ToLongFunction<? super K> mappingFunction)
    If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.
    java.lang.Long computeIfPresent​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)  
    long computeLong​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
    Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).
    long computeLongIfPresent​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
    If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.
    boolean containsValue​(long v)
    Returns true if this map maps one or more keys to the specified value.
    boolean containsValue​(java.lang.Object ov)
    Deprecated.
    Please use the corresponding type-specific method instead.
    it.unimi.dsi.fastutil.objects.ObjectSet<java.util.Map.Entry<K,​java.lang.Long>> entrySet()
    Deprecated.
    Please use the corresponding type-specific method instead.
    boolean equals​(java.lang.Object o)  
    void forEach​(java.util.function.BiConsumer<? super K,​? super java.lang.Long> action)  
    long getOrDefault​(java.lang.Object key, long defaultValue)
    Returns the value to which the specified key is mapped, or the defaultValue if this map contains no mapping for the key.
    java.lang.Long getOrDefault​(java.lang.Object key, java.lang.Long defaultValue)
    Deprecated.
    Please use the corresponding type-specific method instead.
    int hashCode()  
    boolean isEmpty()  
    ReferenceSet<K> keySet()
    long merge​(K key, long value, java.util.function.BiFunction<? super java.lang.Long,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
    If the specified key is not already associated with a value, associates it with the given value.
    java.lang.Long merge​(K key, java.lang.Long value, java.util.function.BiFunction<? super java.lang.Long,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
    Deprecated.
    Please use the corresponding type-specific method instead.
    void putAll​(java.util.Map<? extends K,​? extends java.lang.Long> m)  
    long putIfAbsent​(K key, long value)
    If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.
    java.lang.Long putIfAbsent​(K key, java.lang.Long value)
    Deprecated.
    Please use the corresponding type-specific method instead.
    it.unimi.dsi.fastutil.objects.ObjectSet<Reference2LongMap.Entry<K>> reference2LongEntrySet()
    Returns a type-specific set view of the mappings contained in this map.
    boolean remove​(java.lang.Object key, long value)
    Removes the entry for the specified key only if it is currently mapped to the specified value.
    boolean remove​(java.lang.Object key, java.lang.Object value)
    Deprecated.
    Please use the corresponding type-specific method instead.
    long replace​(K key, long value)
    Replaces the entry for the specified key only if it is currently mapped to some value.
    boolean replace​(K key, long oldValue, long newValue)
    Replaces the entry for the specified key only if currently mapped to the specified value.
    java.lang.Long replace​(K key, java.lang.Long value)
    Deprecated.
    Please use the corresponding type-specific method instead.
    boolean replace​(K key, java.lang.Long oldValue, java.lang.Long newValue)
    Deprecated.
    Please use the corresponding type-specific method instead.
    void replaceAll​(java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> function)  
    it.unimi.dsi.fastutil.longs.LongCollection values()

    Methods inherited from class it.unimi.dsi.fastutil.objects.Reference2LongFunctions.UnmodifiableFunction

    clear, containsKey, defaultReturnValue, defaultReturnValue, get, getLong, put, put, remove, removeLong, size, toString

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface it.unimi.dsi.fastutil.Function

    apply

    Methods inherited from interface java.util.function.Function

    compose

    Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongFunction

    andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, getLong, put, removeLong

    Methods inherited from interface it.unimi.dsi.fastutil.objects.Reference2LongMap

    clear, computeLongIfAbsent, computeLongIfAbsentPartial, containsKey, defaultReturnValue, defaultReturnValue, get, mergeLong, mergeLong, mergeLong, put, remove, size

  • Method Details

    • containsValue

      public boolean containsValue​(long v)
      Description copied from interface: Reference2LongMap
      Returns true if this map maps one or more keys to the specified value.
      Specified by:
      containsValue in interface Reference2LongMap<K>
      See Also:
      Map.containsValue(Object)

    • containsValue

      @Deprecated public boolean containsValue​(java.lang.Object ov)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      containsValue in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      containsValue in interface Reference2LongMap<K>

    • putAll

      public void putAll​(java.util.Map<? extends K,​? extends java.lang.Long> m)
      Specified by:
      putAll in interface java.util.Map<K,​java.lang.Long>

    • reference2LongEntrySet

      public it.unimi.dsi.fastutil.objects.ObjectSet<Reference2LongMap.Entry<K>> reference2LongEntrySet()
      Description copied from interface: Reference2LongMap
      Returns a type-specific set view of the mappings contained in this map.

      This method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Map.entrySet() so that it returns an ObjectSet of type-specific entries (the latter makes it possible to access keys and values with type-specific methods).

      Specified by:
      reference2LongEntrySet in interface Reference2LongMap<K>
      Returns:
      a type-specific set view of the mappings contained in this map.
      See Also:
      Map.entrySet()

    • entrySet

      @Deprecated public it.unimi.dsi.fastutil.objects.ObjectSet<java.util.Map.Entry<K,​java.lang.Long>> entrySet()
      Deprecated.
      Please use the corresponding type-specific method instead.
      Returns a set view of the mappings contained in this map.
      Specified by:
      entrySet in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      entrySet in interface Reference2LongMap<K>
      Returns:
      a set view of the mappings contained in this map.
      See Also:
      Map.entrySet()

    • keySet

      public ReferenceSet<K> keySet()
      Description copied from interface: Reference2LongMap
      Specified by:
      keySet in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      keySet in interface Reference2LongMap<K>
      Returns:
      a set view of the keys contained in this map.
      See Also:
      Map.keySet()

    • values

      public it.unimi.dsi.fastutil.longs.LongCollection values()
      Description copied from interface: Reference2LongMap
      Specified by:
      values in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      values in interface Reference2LongMap<K>
      Returns:
      a set view of the values contained in this map.
      See Also:
      Map.values()

    • isEmpty

      public boolean isEmpty()
      Specified by:
      isEmpty in interface java.util.Map<K,​java.lang.Long>

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface java.util.Map<K,​java.lang.Long>
      Overrides:
      hashCode in class Reference2LongFunctions.UnmodifiableFunction<K>

    • equals

      public boolean equals​(java.lang.Object o)
      Specified by:
      equals in interface java.util.Map<K,​java.lang.Long>
      Overrides:
      equals in class Reference2LongFunctions.UnmodifiableFunction<K>

    • getOrDefault

      public long getOrDefault​(java.lang.Object key, long defaultValue)
      Description copied from interface: Reference2LongMap
      Returns the value to which the specified key is mapped, or the defaultValue if this map contains no mapping for the key.
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>
      Specified by:
      getOrDefault in interface Reference2LongMap<K>
      Overrides:
      getOrDefault in class Reference2LongFunctions.UnmodifiableFunction<K>
      Parameters:
      key - the key.
      defaultValue - the default mapping of the key.
      Returns:
      the value to which the specified key is mapped, or the defaultValue if this map contains no mapping for the key.
      See Also:
      Map.getOrDefault(Object, Object)

    • forEach

      public void forEach​(java.util.function.BiConsumer<? super K,​? super java.lang.Long> action)
      Specified by:
      forEach in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      forEach in interface Reference2LongMap<K>

    • replaceAll

      public void replaceAll​(java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> function)
      Specified by:
      replaceAll in interface java.util.Map<K,​java.lang.Long>

    • putIfAbsent

      public long putIfAbsent​(K key, long value)
      Description copied from interface: Reference2LongMap
      If the specified key is not already associated with a value, associates it with the given value and returns the default return value, else returns the current value.
      Specified by:
      putIfAbsent in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is to be associated.
      value - value to be associated with the specified key.
      Returns:
      the previous value associated with the specified key, or the default return value if there was no mapping for the key.
      See Also:
      Map.putIfAbsent(Object, Object)

    • remove

      public boolean remove​(java.lang.Object key, long value)
      Description copied from interface: Reference2LongMap
      Removes the entry for the specified key only if it is currently mapped to the specified value.
      Specified by:
      remove in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is associated.
      value - value expected to be associated with the specified key.
      Returns:
      true if the value was removed.
      See Also:
      Map.remove(Object, Object)

    • replace

      public long replace​(K key, long value)
      Description copied from interface: Reference2LongMap
      Replaces the entry for the specified key only if it is currently mapped to some value.
      Specified by:
      replace in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is associated.
      value - value to be associated with the specified key.
      Returns:
      the previous value associated with the specified key, or the default return value if there was no mapping for the key.
      See Also:
      Map.replace(Object, Object)

    • replace

      public boolean replace​(K key, long oldValue, long newValue)
      Description copied from interface: Reference2LongMap
      Replaces the entry for the specified key only if currently mapped to the specified value.
      Specified by:
      replace in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is associated.
      oldValue - value expected to be associated with the specified key.
      newValue - value to be associated with the specified key.
      Returns:
      true if the value was replaced.
      See Also:
      Map.replace(Object, Object, Object)

    • computeIfAbsent

      public long computeIfAbsent​(K key, java.util.function.ToLongFunction<? super K> mappingFunction)
      Description copied from interface: Reference2LongMap
      If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map.

      Note that contrarily to the default computeIfAbsent(), it is not possible to not add a value for a given key, since the mappingFunction cannot return null. If such a behavior is needed, please use the corresponding nullable version.

      Specified by:
      computeIfAbsent in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is to be associated.
      mappingFunction - the function to compute a value.
      Returns:
      the current (existing or computed) value associated with the specified key.
      See Also:
      Map.computeIfAbsent(Object, java.util.function.Function)

    • computeIfAbsent

      public long computeIfAbsent​(K key, it.unimi.dsi.fastutil.objects.Reference2LongFunction<? super K> mappingFunction)
      Description copied from interface: Reference2LongMap
      If the specified key is not already associated with a value, attempts to compute its value using the given mapping function and enters it into this map, unless the key is not present in the given mapping function.

      This version of computeIfAbsent() uses a type-specific version of fastutil's Function. Since Function has a containsKey() method, it is possible to avoid adding a key by having containsKey() return false for that key.

      Specified by:
      computeIfAbsent in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is to be associated.
      mappingFunction - the function to compute a value.
      Returns:
      the current (existing or computed) value associated with the specified key.
      See Also:
      Map.computeIfAbsent(Object, java.util.function.Function)

    • computeLongIfPresent

      public long computeLongIfPresent​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Description copied from interface: Reference2LongMap
      If the value for the specified key is present, attempts to compute a new mapping given the key and its current mapped value.
      Specified by:
      computeLongIfPresent in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is to be associated.
      remappingFunction - the function to compute a value.
      Returns:
      the new value associated with the specified key, or the default return value if none.
      See Also:
      Map.computeIfPresent(Object, java.util.function.BiFunction)

    • computeLong

      public long computeLong​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Description copied from interface: Reference2LongMap
      Attempts to compute a mapping for the specified key and its current mapped value (or null if there is no current mapping).

      If the function returns null, the mapping is removed (or remains absent if initially absent). If the function itself throws an (unchecked) exception, the exception is rethrown, and the current mapping is left unchanged.

      Specified by:
      computeLong in interface Reference2LongMap<K>
      Parameters:
      key - key with which the specified value is to be associated.
      remappingFunction - the function to compute a value.
      Returns:
      the new value associated with the specified key, or the default return value if none.
      See Also:
      Map.compute(Object, java.util.function.BiFunction)

    • merge

      public long merge​(K key, long value, java.util.function.BiFunction<? super java.lang.Long,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Description copied from interface: Reference2LongMap
      If the specified key is not already associated with a value, associates it with the given value. Otherwise, replaces the associated value with the results of the given remapping function, or removes if the result is null.
      Specified by:
      merge in interface Reference2LongMap<K>
      Parameters:
      key - key with which the resulting value is to be associated.
      value - the value to be merged with the existing value associated with the key or, if no existing value is associated with the key, to be associated with the key.
      remappingFunction - the function to recompute a value if present.
      Returns:
      the new value associated with the specified key, or the default return value if no value is associated with the key.
      See Also:
      Map.merge(Object, Object, java.util.function.BiFunction)

    • getOrDefault

      @Deprecated public java.lang.Long getOrDefault​(java.lang.Object key, java.lang.Long defaultValue)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.Function<K,​java.lang.Long>
      Specified by:
      getOrDefault in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      getOrDefault in interface it.unimi.dsi.fastutil.objects.Reference2LongFunction<K>
      Specified by:
      getOrDefault in interface Reference2LongMap<K>
      Overrides:
      getOrDefault in class Reference2LongFunctions.UnmodifiableFunction<K>

    • remove

      @Deprecated public boolean remove​(java.lang.Object key, java.lang.Object value)
      Deprecated.
      Please use the corresponding type-specific method instead.

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      remove in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      remove in interface Reference2LongMap<K>

    • replace

      @Deprecated public java.lang.Long replace​(K key, java.lang.Long value)
      Deprecated.
      Please use the corresponding type-specific method instead.

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      replace in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      replace in interface Reference2LongMap<K>

    • replace

      @Deprecated public boolean replace​(K key, java.lang.Long oldValue, java.lang.Long newValue)
      Deprecated.
      Please use the corresponding type-specific method instead.

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      replace in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      replace in interface Reference2LongMap<K>

    • putIfAbsent

      @Deprecated public java.lang.Long putIfAbsent​(K key, java.lang.Long value)
      Deprecated.
      Please use the corresponding type-specific method instead.

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      putIfAbsent in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      putIfAbsent in interface Reference2LongMap<K>

    • computeIfAbsent

      public java.lang.Long computeIfAbsent​(K key, java.util.function.Function<? super K,​? extends java.lang.Long> mappingFunction)
      Specified by:
      computeIfAbsent in interface java.util.Map<K,​java.lang.Long>

    • computeIfPresent

      public java.lang.Long computeIfPresent​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Specified by:
      computeIfPresent in interface java.util.Map<K,​java.lang.Long>

    • compute

      public java.lang.Long compute​(K key, java.util.function.BiFunction<? super K,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Specified by:
      compute in interface java.util.Map<K,​java.lang.Long>

    • merge

      @Deprecated public java.lang.Long merge​(K key, java.lang.Long value, java.util.function.BiFunction<? super java.lang.Long,​? super java.lang.Long,​? extends java.lang.Long> remappingFunction)
      Deprecated.
      Please use the corresponding type-specific method instead.

      This default implementation just delegates to the corresponding Map method.

      Specified by:
      merge in interface java.util.Map<K,​java.lang.Long>
      Specified by:
      merge in interface Reference2LongMap<K>