Class FastStringObjectMap<V>

java.lang.Object
gaiasky.util.FastStringObjectMap<V>
Type Parameters:
V - the type of values maintained by this map
public class FastStringObjectMap<V> extends Object
A high-performance map implementation that stores String keys and generic Object values. This implementation uses open addressing with linear probing to reduce memory overhead and avoid boxing of integer values.

  • Constructor Summary

    Constructors
    Constructor
    Description
    FastStringObjectMap(int initialCapacity, Class<V> c)
    Constructs a new map with the specified initial capacity.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    containsKey(String key)
    Checks if the map contains the specified key.
    V
    get(String key)
    Returns the value associated with the specified key, or null if not found.
    String[]
    keys()
    Returns an array of all keys in the map.
    void
    put(String key, V value)
    Associates the specified value with the specified key in the map.
    V
    remove(String key)
    Removes the mapping for the specified key from this map if present.
    int
    size()
    Returns the number of key-value mappings in the map.

    Methods inherited from class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • FastStringObjectMap

      public FastStringObjectMap(int initialCapacity, Class<V> c)
      Constructs a new map with the specified initial capacity.
      Parameters:
      initialCapacity - the initial capacity

  • Method Details

    • get

      public V get(String key)
      Returns the value associated with the specified key, or null if not found.
      Parameters:
      key - the key
      Returns:
      the associated value, or null if the key is not present

    • put

      public void put(String key, V value)
      Associates the specified value with the specified key in the map. If the key already exists, its value will be overwritten.
      Parameters:
      key - the key
      value - the value

    • containsKey

      public boolean containsKey(String key)
      Checks if the map contains the specified key.
      Parameters:
      key - the key to check
      Returns:
      true if the key is present, false otherwise

    • keys

      public String[] keys()
      Returns an array of all keys in the map. This is the internal array, so it is subject to change. Also, it may contain null values
      Returns:
      an array containing all keys in the map

    • remove

      public V remove(String key)
      Removes the mapping for the specified key from this map if present.
      Parameters:
      key - the key whose mapping is to be removed
      Returns:
      the previous value associated with the key, or null if none

    • size

      public int size()
      Returns the number of key-value mappings in the map.
      Returns:
      the size of the map