Package net.sf.saxon.z

Class IntHashMap<T>

java.lang.Object
net.sf.saxon.z.IntHashMap<T>
public class IntHashMap<T> extends Object
A hash table that maps int keys to Object values.

  • Constructor Details

    • IntHashMap

      public IntHashMap()
      Initializes a map with a capacity of 8 and a load factor of 0,25.

    • IntHashMap

      public IntHashMap(int capacity)
      Initializes a map with the given capacity and a load factor of 0,25.
      Parameters:
      capacity - the initial capacity.

    • IntHashMap

      public IntHashMap(int capacity, double factor)
      Constructs a new map with initial capacity, and load factor.

      The capacity is the number of keys that can be mapped without resizing the arrays in which keys and values are stored. For efficiency, only a fraction of the elements in those arrays are used. That fraction is the specified load factor. The initial length of the arrays equals the smallest power of two not less than the ratio capacity/factor. The capacity of the map is increased, as necessary. The maximum number of keys that can be mapped is 2^30.

      Parameters:
      capacity - the initial capacity.
      factor - the load factor.

  • Method Details

    • clear

      public void clear()
      Clears the map.

    • get

      public T get(int key)
      Gets the value for this key.
      Parameters:
      key - Key
      Returns:
      the value, null if not found.

    • size

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

    • remove

      public boolean remove(int key)
      Removes a key from the map.
      Parameters:
      key - Key to remove
      Returns:
      true if the value was removed

    • put

      public T put(int key, T value)
      Adds a key-value pair to the map.
      Parameters:
      key - Key
      value - Value
      Returns:
      the value that was previously associated with the key, or null if there was no previous value

    • keyIterator

      public IntIterator keyIterator()
      Get an iterator over the keys
      Returns:
      an iterator over the integer keys in the map

    • valueIterator

      public Iterator<T> valueIterator()
      Get an iterator over the values
      Returns:
      an iterator over the values in the map

    • valueSet

      public Iterable<T> valueSet()
      Get the collection of values. (Despite the name, this is not a set: it may contain duplicates.)
      Returns:
      the set of values as an iterable collection

    • copy

      public IntHashMap<T> copy()
      Create a copy of the IntHashMap
      Returns:
      a copy of this map

    • keySet

      public IntSet keySet()
      Get the set of integer keys present in this IntHashSet
      Returns:
      the set of integer keys present in this IntHashSet