Package org.eclipse.mat.collect

Class HashMapIntLong

java.lang.Object
org.eclipse.mat.collect.HashMapIntLong
All Implemented Interfaces:
Serializable
public final class HashMapIntLong extends Object implements Serializable
A map from int to long. More efficient than a general map
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static interface 
    HashMapIntLong.Entry
    An entry from the map

  • Constructor Summary

    Constructors
    Constructor
    Description
    HashMapIntLong()
    Create a map of default size
    HashMapIntLong(int initialCapacity)
    Create a map of given size

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
    Remove all the existing mappings, leaving the capacity unchanged.
    boolean
    containsKey(int key)
    find if key is present in map
    Iterator<HashMapIntLong.Entry>
    entries()
    Iterate over all the map entries
    long
    get(int key)
    Retrieve the value corresponding to the key
    int[]
    getAllKeys()
    Get all the used keys
    long[]
    getAllValues()
    Get all the values corresponding to the used keys.
    boolean
    isEmpty()
    Is the map empty
    IteratorInt
    keys()
    Get a way of iterating over the keys
    boolean
    put(int key, long value)
    Add a mapping
    boolean
    remove(int key)
    Remove an mapping from the map
    int
    size()
    The number of mappings
    IteratorLong
    values()
    Get a way of iterating over the values.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • HashMapIntLong

      public HashMapIntLong()
      Create a map of default size

    • HashMapIntLong

      public HashMapIntLong(int initialCapacity)
      Create a map of given size
      Parameters:
      initialCapacity - in entries.

  • Method Details

    • put

      public boolean put(int key, long value)
      Add a mapping
      Parameters:
      key - the key
      value - the corresponding value
      Returns:
      true if an entry with the key already exists

    • remove

      public boolean remove(int key)
      Remove an mapping from the map
      Parameters:
      key - the key to remove
      Returns:
      true if entry was found

    • containsKey

      public boolean containsKey(int key)
      find if key is present in map
      Parameters:
      key - the key
      Returns:
      true if the key was found

    • get

      public long get(int key)
      Retrieve the value corresponding to the key
      Parameters:
      key - the key
      Returns:
      the value
      Throws:
      NoSuchElementException - if the key is not found

    • getAllKeys

      public int[] getAllKeys()
      Get all the used keys
      Returns:
      an array of the used keys

    • size

      public int size()
      The number of mappings
      Returns:
      the size of the map

    • isEmpty

      public boolean isEmpty()
      Is the map empty
      Returns:
      true if no current mappings

    • clear

      public void clear()
      Remove all the existing mappings, leaving the capacity unchanged.

    • keys

      public IteratorInt keys()
      Get a way of iterating over the keys
      Returns:
      an iterator over the keys

    • values

      public IteratorLong values()
      Get a way of iterating over the values.
      Returns:
      an iterator over the values

    • entries

      public Iterator<HashMapIntLong.Entry> entries()
      Iterate over all the map entries
      Returns:
      the iterator over the entries

    • getAllValues

      public long[] getAllValues()
      Get all the values corresponding to the used keys. Duplicate values are possible if they correspond to different keys.
      Returns:
      an array of the used values