Package co.aikar.util

Class LoadingMap<K,V>

java.lang.Object
java.util.AbstractMap<K,V>
co.aikar.util.LoadingMap<K,V>
Type Parameters:
K - Key
V - Value
All Implemented Interfaces:
Map<K,V>
@Deprecated(forRemoval=true) public class LoadingMap<K,V> extends AbstractMap<K,V>
Deprecated, for removal: This API element is subject to removal in a future version.
Allows you to pass a Loader function that when a key is accessed that doesn't exists, automatically loads the entry into the map by calling the loader Function. .get() Will only return null if the Loader can return null. You may pass any backing Map to use. This class is not thread safe and should be wrapped with Collections.synchronizedMap on the OUTSIDE of the LoadingMap if needed. Do not wrap the backing map with Collections.synchronizedMap.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    LoadingMap.Feeder<T>
    Deprecated, for removal: This API element is subject to removal in a future version.
    Due to java stuff, you will need to cast it to (Function) for some cases

    Nested classes/interfaces inherited from class java.util.AbstractMap

    AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

    Nested classes/interfaces inherited from interface java.util.Map

    Map.Entry<K extends Object,V extends Object>

  • Constructor Summary

    Constructors
    Constructor
    Description
    LoadingMap(@NotNull Map<K,V> backingMap, Function<K,V> loader)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using specified loader and backing map

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    @NotNull LoadingMap<K,V>
    clone()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    boolean
    containsKey(@Nullable Object key)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    boolean
    containsValue(@Nullable Object value)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    @NotNull Set<Map.Entry<K,V>>
    entrySet()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    boolean
    equals(@Nullable Object o)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    V
    get(@Nullable Object key)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    int
    hashCode()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    boolean
    isEmpty()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    @NotNull Set<K>
    keySet()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    static <K, V> @NotNull Map<K,V>
    newAutoMap(@NotNull Map<K,V> backingMap, @NotNull Class<? extends V> valueClass)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Creates a LoadingMap with an auto instantiating loader.
    static <K, V> @NotNull Map<K,V>
    newAutoMap(@NotNull Map<K,V> backingMap, @Nullable Class<? extends K> keyClass, @NotNull Class<? extends V> valueClass)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Creates a LoadingMap with an auto instantiating loader.
    static <K, V> @NotNull Map<K,V>
    newHashAutoMap(@NotNull Class<? extends V> valueClass)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    static <K, V> @NotNull Map<K,V>
    newHashAutoMap(@NotNull Class<? extends V> valueClass, int initialCapacity, float loadFactor)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    static <K, V> @NotNull Map<K,V>
    newHashAutoMap(@Nullable Class<? extends K> keyClass, @NotNull Class<? extends V> valueClass)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    static <K, V> @NotNull Map<K,V>
    newHashAutoMap(@Nullable Class<? extends K> keyClass, @NotNull Class<? extends V> valueClass, int initialCapacity, float loadFactor)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    static <K, V> @NotNull Map<K,V>
    newHashMap(@NotNull Function<K,V> loader)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using a HashMap
    static <K, V> @NotNull Map<K,V>
    newHashMap(@NotNull Function<K,V> loader, int initialCapacity)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using a HashMap
    static <K, V> @NotNull Map<K,V>
    newHashMap(@NotNull Function<K,V> loader, int initialCapacity, float loadFactor)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using a HashMap
    static <K, V> @NotNull Map<K,V>
    newIdentityHashMap(@NotNull Function<K,V> loader)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using an Identity HashMap
    static <K, V> @NotNull Map<K,V>
    newIdentityHashMap(@NotNull Function<K,V> loader, int initialCapacity)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Initializes an auto loading map using an Identity HashMap
    static <K, V> @NotNull Map<K,V>
    of(@NotNull Map<K,V> backingMap, @NotNull Function<K,V> loader)
    Deprecated, for removal: This API element is subject to removal in a future version.
    Creates a new LoadingMap with the specified map and loader
    V
    put(K key, V value)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    void
    putAll(@NotNull Map<? extends K,? extends V> m)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    V
    remove(@Nullable Object key)
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    int
    size()
    Deprecated, for removal: This API element is subject to removal in a future version.
     
    @NotNull Collection<V>
    values()
    Deprecated, for removal: This API element is subject to removal in a future version.
     

    Methods inherited from class java.util.AbstractMap

    toString

    Methods inherited from class java.lang.Object

    finalize, getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface java.util.Map

    compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

  • Constructor Details

    • LoadingMap

      public LoadingMap(@NotNull @NotNull Map<K,V> backingMap, @NotNull Function<K,V> loader)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using specified loader and backing map
      Parameters:
      backingMap - Map to wrap
      loader - Loader

  • Method Details

    • of

      @NotNull public static <K, V> @NotNull Map<K,V> of(@NotNull @NotNull Map<K,V> backingMap, @NotNull @NotNull Function<K,V> loader)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Creates a new LoadingMap with the specified map and loader
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      backingMap - Actual map being used.
      loader - Loader to use
      Returns:
      Map

    • newAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newAutoMap(@NotNull @NotNull Map<K,V> backingMap, @Nullable @Nullable Class<? extends K> keyClass, @NotNull @NotNull Class<? extends V> valueClass)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Creates a LoadingMap with an auto instantiating loader. Will auto construct class of of Value when not found Since this uses Reflection, It is more effecient to define your own static loader than using this helper, but if performance is not critical, this is easier.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      backingMap - Actual map being used.
      keyClass - Class used for the K generic
      valueClass - Class used for the V generic
      Returns:
      Map that auto instantiates on .get()

    • newAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newAutoMap(@NotNull @NotNull Map<K,V> backingMap, @NotNull @NotNull Class<? extends V> valueClass)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Creates a LoadingMap with an auto instantiating loader. Will auto construct class of of Value when not found Since this uses Reflection, It is more effecient to define your own static loader than using this helper, but if performance is not critical, this is easier.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      backingMap - Actual map being used.
      valueClass - Class used for the V generic
      Returns:
      Map that auto instantiates on .get()

    • newHashAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashAutoMap(@Nullable @Nullable Class<? extends K> keyClass, @NotNull @NotNull Class<? extends V> valueClass)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      keyClass - Class used for the K generic
      valueClass - Class used for the V generic
      Returns:
      Map that auto instantiates on .get()
      See Also:

    • newHashAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashAutoMap(@NotNull @NotNull Class<? extends V> valueClass)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      valueClass - Class used for the V generic
      Returns:
      Map that auto instantiates on .get()
      See Also:

    • newHashAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashAutoMap(@Nullable @Nullable Class<? extends K> keyClass, @NotNull @NotNull Class<? extends V> valueClass, int initialCapacity, float loadFactor)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      keyClass - Class used for the K generic
      valueClass - Class used for the V generic
      initialCapacity - Initial capacity to use
      loadFactor - Load factor to use
      Returns:
      Map that auto instantiates on .get()
      See Also:

    • newHashAutoMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashAutoMap(@NotNull @NotNull Class<? extends V> valueClass, int initialCapacity, float loadFactor)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      valueClass - Class used for the V generic
      initialCapacity - Initial capacity to use
      loadFactor - Load factor to use
      Returns:
      Map that auto instantiates on .get()
      See Also:

    • newHashMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashMap(@NotNull @NotNull Function<K,V> loader)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using a HashMap
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      loader - Loader to use
      Returns:
      Map

    • newHashMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashMap(@NotNull @NotNull Function<K,V> loader, int initialCapacity)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using a HashMap
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      loader - Loader to use
      initialCapacity - Initial capacity to use
      Returns:
      Map

    • newHashMap

      @NotNull public static <K, V> @NotNull Map<K,V> newHashMap(@NotNull @NotNull Function<K,V> loader, int initialCapacity, float loadFactor)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using a HashMap
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      loader - Loader to use
      initialCapacity - Initial capacity to use
      loadFactor - Load factor to use
      Returns:
      Map

    • newIdentityHashMap

      @NotNull public static <K, V> @NotNull Map<K,V> newIdentityHashMap(@NotNull @NotNull Function<K,V> loader)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using an Identity HashMap
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      loader - Loader to use
      Returns:
      Map

    • newIdentityHashMap

      @NotNull public static <K, V> @NotNull Map<K,V> newIdentityHashMap(@NotNull @NotNull Function<K,V> loader, int initialCapacity)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Initializes an auto loading map using an Identity HashMap
      Type Parameters:
      K - Key Type of the Map
      V - Value Type of the Map
      Parameters:
      loader - Loader to use
      initialCapacity - Initial capacity to use
      Returns:
      Map

    • size

      public int size()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      size in interface Map<K,V>
      Overrides:
      size in class AbstractMap<K,V>

    • isEmpty

      public boolean isEmpty()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      isEmpty in interface Map<K,V>
      Overrides:
      isEmpty in class AbstractMap<K,V>

    • containsKey

      public boolean containsKey(@Nullable @Nullable Object key)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      containsKey in interface Map<K,V>
      Overrides:
      containsKey in class AbstractMap<K,V>

    • containsValue

      public boolean containsValue(@Nullable @Nullable Object value)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      containsValue in interface Map<K,V>
      Overrides:
      containsValue in class AbstractMap<K,V>

    • get

      @Nullable public V get(@Nullable @Nullable Object key)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      get in interface Map<K,V>
      Overrides:
      get in class AbstractMap<K,V>

    • put

      @Nullable public V put(@Nullable K key, @Nullable V value)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      put in interface Map<K,V>
      Overrides:
      put in class AbstractMap<K,V>

    • remove

      @Nullable public V remove(@Nullable @Nullable Object key)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      remove in interface Map<K,V>
      Overrides:
      remove in class AbstractMap<K,V>

    • putAll

      public void putAll(@NotNull @NotNull Map<? extends K,? extends V> m)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      putAll in interface Map<K,V>
      Overrides:
      putAll in class AbstractMap<K,V>

    • clear

      public void clear()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      clear in interface Map<K,V>
      Overrides:
      clear in class AbstractMap<K,V>

    • keySet

      @NotNull public @NotNull Set<K> keySet()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      keySet in interface Map<K,V>
      Overrides:
      keySet in class AbstractMap<K,V>

    • values

      @NotNull public @NotNull Collection<V> values()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      values in interface Map<K,V>
      Overrides:
      values in class AbstractMap<K,V>

    • equals

      public boolean equals(@Nullable @Nullable Object o)
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      equals in interface Map<K,V>
      Overrides:
      equals in class AbstractMap<K,V>

    • hashCode

      public int hashCode()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      hashCode in interface Map<K,V>
      Overrides:
      hashCode in class AbstractMap<K,V>

    • entrySet

      @NotNull public @NotNull Set<Map.Entry<K,V>> entrySet()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Specified by:
      entrySet in interface Map<K,V>
      Specified by:
      entrySet in class AbstractMap<K,V>

    • clone

      @NotNull public @NotNull LoadingMap<K,V> clone()
      Deprecated, for removal: This API element is subject to removal in a future version.
      Overrides:
      clone in class AbstractMap<K,V>