Package freemarker.ext.util

Class IdentityHashMap

java.lang.Object
java.util.AbstractMap
freemarker.ext.util.IdentityHashMap
All Implemented Interfaces:
Serializable, Cloneable, Map
@Deprecated public class IdentityHashMap extends AbstractMap implements Map, Cloneable, Serializable
Deprecated.
Use IdentityHashMap instead.
Was used instead of IdentityHashMap before that was added to Java itself in Java 1.4.
See Also:
Serialized Form

  • Nested Class Summary

    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>

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static long
    serialVersionUID
    Deprecated.
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    IdentityHashMap()
    Deprecated.
    Constructs a new, empty map with a default capacity and load factor, which is 0.75.
    IdentityHashMap​(int initialCapacity)
    Deprecated.
    Constructs a new, empty map with the specified initial capacity and default load factor, which is 0.75.
    IdentityHashMap​(int initialCapacity, float loadFactor)
    Deprecated.
    Constructs a new, empty map with the specified initial capacity and the specified load factor.
    IdentityHashMap​(Map t)
    Deprecated.
    Constructs a new map with the same mappings as the given map.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
    Deprecated.
    Removes all mappings from this map.
    Object
    clone()
    Deprecated.
    Returns a shallow copy of this IdentityHashMap instance: the keys and values themselves are not cloned.
    boolean
    containsKey​(Object key)
    Deprecated.
    Returns true if this map contains a mapping for the specified key.
    boolean
    containsValue​(Object value)
    Deprecated.
    Returns true if this map maps one or more keys to the specified value.
    Set
    entrySet()
    Deprecated.
    Returns a collection view of the mappings contained in this map.
    Object
    get​(Object key)
    Deprecated.
    Returns the value to which this map maps the specified key.
    boolean
    isEmpty()
    Deprecated.
    Returns true if this map contains no key-value mappings.
    Set
    keySet()
    Deprecated.
    Returns a set view of the keys contained in this map.
    Object
    put​(Object key, Object value)
    Deprecated.
    Associates the specified value with the specified key in this map.
    void
    putAll​(Map t)
    Deprecated.
    Copies all of the mappings from the specified map to this one.
    Object
    remove​(Object key)
    Deprecated.
    Removes the mapping for this key from this map if present.
    int
    size()
    Deprecated.
    Returns the number of key-value mappings in this map.
    Collection
    values()
    Deprecated.
    Returns a collection view of the values contained in this map.

    Methods inherited from class java.util.AbstractMap

    equals, hashCode, 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, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

  • Field Details

    • serialVersionUID

      public static final long serialVersionUID
      Deprecated.
      See Also:
      Constant Field Values

  • Constructor Details

    • IdentityHashMap

      public IdentityHashMap​(int initialCapacity, float loadFactor)
      Deprecated.
      Constructs a new, empty map with the specified initial capacity and the specified load factor.
      Parameters:
      initialCapacity - the initial capacity of the IdentityHashMap.
      loadFactor - the load factor of the IdentityHashMap
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero, or if the load factor is nonpositive.

    • IdentityHashMap

      public IdentityHashMap​(int initialCapacity)
      Deprecated.
      Constructs a new, empty map with the specified initial capacity and default load factor, which is 0.75.
      Parameters:
      initialCapacity - the initial capacity of the IdentityHashMap.
      Throws:
      IllegalArgumentException - if the initial capacity is less than zero.

    • IdentityHashMap

      public IdentityHashMap()
      Deprecated.
      Constructs a new, empty map with a default capacity and load factor, which is 0.75.

    • IdentityHashMap

      public IdentityHashMap​(Map t)
      Deprecated.
      Constructs a new map with the same mappings as the given map. The map is created with a capacity of twice the number of mappings in the given map or 11 (whichever is greater), and a default load factor, which is 0.75.
      Parameters:
      t - the map whose mappings are to be placed in this map.

  • Method Details

    • size

      public int size()
      Deprecated.
      Returns the number of key-value mappings in this map.
      Specified by:
      size in interface Map
      Overrides:
      size in class AbstractMap
      Returns:
      the number of key-value mappings in this map.

    • isEmpty

      public boolean isEmpty()
      Deprecated.
      Returns true if this map contains no key-value mappings.
      Specified by:
      isEmpty in interface Map
      Overrides:
      isEmpty in class AbstractMap
      Returns:
      true if this map contains no key-value mappings.

    • containsValue

      public boolean containsValue​(Object value)
      Deprecated.
      Returns true if this map maps one or more keys to the specified value.
      Specified by:
      containsValue in interface Map
      Overrides:
      containsValue in class AbstractMap
      Parameters:
      value - value whose presence in this map is to be tested.
      Returns:
      true if this map maps one or more keys to the specified value.

    • containsKey

      public boolean containsKey​(Object key)
      Deprecated.
      Returns true if this map contains a mapping for the specified key.
      Specified by:
      containsKey in interface Map
      Overrides:
      containsKey in class AbstractMap
      Parameters:
      key - key whose presence in this Map is to be tested.
      Returns:
      true if this map contains a mapping for the specified key.

    • get

      public Object get​(Object key)
      Deprecated.
      Returns the value to which this map maps the specified key. Returns null if the map contains no mapping for this key. A return value of null does not necessarily indicate that the map contains no mapping for the key; it's also possible that the map explicitly maps the key to null. The containsKey operation may be used to distinguish these two cases.
      Specified by:
      get in interface Map
      Overrides:
      get in class AbstractMap
      Parameters:
      key - key whose associated value is to be returned.
      Returns:
      the value to which this map maps the specified key.

    • put

      public Object put​(Object key, Object value)
      Deprecated.
      Associates the specified value with the specified key in this map. If the map previously contained a mapping for this key, the old value is replaced.
      Specified by:
      put in interface Map
      Overrides:
      put in class AbstractMap
      Parameters:
      key - key with which the specified value is to be associated.
      value - value to be associated with the specified key.
      Returns:
      previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the IdentityHashMap previously associated null with the specified key.

    • remove

      public Object remove​(Object key)
      Deprecated.
      Removes the mapping for this key from this map if present.
      Specified by:
      remove in interface Map
      Overrides:
      remove in class AbstractMap
      Parameters:
      key - key whose mapping is to be removed from the map.
      Returns:
      previous value associated with specified key, or null if there was no mapping for key. A null return can also indicate that the map previously associated null with the specified key.

    • putAll

      public void putAll​(Map t)
      Deprecated.
      Copies all of the mappings from the specified map to this one. These mappings replace any mappings that this map had for any of the keys currently in the specified Map.
      Specified by:
      putAll in interface Map
      Overrides:
      putAll in class AbstractMap
      Parameters:
      t - Mappings to be stored in this map.

    • clear

      public void clear()
      Deprecated.
      Removes all mappings from this map.
      Specified by:
      clear in interface Map
      Overrides:
      clear in class AbstractMap

    • clone

      public Object clone()
      Deprecated.
      Returns a shallow copy of this IdentityHashMap instance: the keys and values themselves are not cloned.
      Overrides:
      clone in class AbstractMap
      Returns:
      a shallow copy of this map.

    • keySet

      public Set keySet()
      Deprecated.
      Returns a set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice versa. The set supports element removal, which removes the corresponding mapping from this map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
      Specified by:
      keySet in interface Map
      Overrides:
      keySet in class AbstractMap
      Returns:
      a set view of the keys contained in this map.

    • values

      public Collection values()
      Deprecated.
      Returns a collection view of the values contained in this map. The collection is backed by the map, so changes to the map are reflected in the collection, and vice versa. The collection supports element removal, which removes the corresponding mapping from this map, via the Iterator.remove, Collection.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
      Specified by:
      values in interface Map
      Overrides:
      values in class AbstractMap
      Returns:
      a collection view of the values contained in this map.

    • entrySet

      public Set entrySet()
      Deprecated.
      Returns a collection view of the mappings contained in this map. Each element in the returned collection is a Map.Entry. The collection is backed by the map, so changes to the map are reflected in the collection, and vice versa. The collection supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Collection.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.
      Specified by:
      entrySet in interface Map
      Specified by:
      entrySet in class AbstractMap
      Returns:
      a collection view of the mappings contained in this map.
      See Also:
      Map.Entry