Package com.pnfsoftware.jeb.util.collect

Class IntMap

java.lang.Object
com.pnfsoftware.jeb.util.collect.IntMap
@Ser public class IntMap extends Object
A memory-efficient map (dictionary) of int primitives to int primitives. Additions, retrieval, updates are supported. Deletes are not supported.

All ints are valid keys and values. The value 0, however, may indicate an empty entry.

Note: Object.hashCode() and Object.equals(Object) are not overridden.

  • Constructor Details

    • IntMap

      public IntMap()
      Create an empty integer map.

  • Method Details

    • size

      public int size()
      Returns:
      number of entries in the map

    • isEmpty

      public boolean isEmpty()
      Returns:
      true if the map has no entries

    • clear

      public void clear()
      Remove all entries.

    • put

      public int put(int key, int val)
      Add an entry.
      Parameters:
      key - key
      val - value
      Returns:
      the previous value (0 if there was none associated with the key)

    • get

      public int get(int key)
      Retrieve a value associated to a key.
      Parameters:
      key - key
      Returns:
      the value; 0 may indicate that the entry was not present in the map

    • containsKey

      public boolean containsKey(int key)
      Determine if the key maps to an entry in the map.
      Parameters:
      key - key
      Returns:
      true if the key is present

    • toString

      public String toString()
      Overrides:
      toString in class Object