Class COM.odi.util.TypedMap

java.lang.Object
   |
   +----COM.odi.util.TypedMap

public class TypedMap

extends Object

implements Map, Cloneable, Serializable

TypedMap(int, Class, Class, boolean, boolean)

Constructs a new hash table and allocates internal structures.

clear()

Removes all of the elements from this Collection.

contains(Object)

Same as containsValue.

containsKey(Object)

Returns true if this Map contains a mapping for the specified key.

containsValue(Object)

Returns true if this Map maps one or more keys to this value.

elements()

Return an enumeration on the elements of the Map.

entries()

Returns a Collection view of the mappings contained in this Map.

equals(Object)

Compares the specified Object with this Map for equality.

get(Object)

Returns the value to which this Map maps the specified key.

hashCode()

Returns the hash code value for this Map.

isEmpty()

Returns true if this Collection contains no elements.

keys()

Return an enumeration on the keys of the Map.

keySet()

Returns a Set view of the keys contained in this Map.

put(Object, Object)

Associates the specified value with the specified key in this Map.

putAll(Map)

Copies all of the mappings from the specified Map to this Map.

remove(Object)

Removes the mapping for this key from this Map if present.

size()

Returns the number of elements in this Collection.

values()

Returns a Collection view of the values contained in this Map.

  public TypedMap(int capacity,
                  Class keyType,
                  Class valueType,
                  boolean nullKeys,
                  boolean nullValues)

Constructs a new hash table and allocates internal structures.

Parameters:

initialCapacity - The initial expected capacity requirement for the hash table.

  public int size()

Returns the number of elements in this Collection.

  public boolean isEmpty()

Returns true if this Collection contains no elements.

  public void clear()

Removes all of the elements from this Collection. The Collection will be empty after this call returns.

  public boolean containsValue(Object value)

Returns true if this Map maps one or more keys to this value. More formally, returns true if and only if this Map contains at least one mapping to a value v such that (value==null ? v==null : value.equals(v)).

Parameters:

value - value whose presence in this Map is to be tested.

  public boolean contains(Object value)

Same as containsValue.

  public boolean containsKey(Object key)

Returns true if this Map contains a mapping for the specified key.

Parameters:

key - key whose presence in this Map is to be tested.

  public Enumeration elements()

Return an enumeration on the elements of the Map.

  public Enumeration keys()

Return an enumeration on the keys of the Map.

  public Object get(Object key)

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.

Parameters:

key - key whose associated value is to be returned.

  public Object put(Object key,
                    Object value)

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.

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 Map previously associated null with the specified key, if the implementation supports null values.)

Throws: ClassCastException

class of the specified key or value prevents it from being stored in this Map.

Throws: IllegalArgumentException

some aspect of this key or value prevents it from being stored in this Map.

Throws: NullPointerException

this Map does not permit null keys or values, and the specified key or value is null.

  public Object remove(Object key)

Removes the mapping for this key from this Map if present.

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, if the implementation supports null values.)

  public void putAll(Map t)

Copies all of the mappings from the specified Map to this Map. This optional operation is UNSUPPORTED.

Throws: UnsupportedOperationException

putAll is not supported by this Map.

  public Set keySet()

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. (If the Map is modified while while an iteration over the Set is in progress, the results of the iteration are undefined.) The Set supports element removal (which removes the corresponding mapping from the Map) via the Iterator.remove, Set.remove, removeAll retainAll, and clear operations. It does not support the add or addAll operations.

  public Collection values()

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. (If the Map is modified while while an iteration over the Collection is in progress, the results of the iteration are undefined.) 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.

  public Set entries()

Returns a Collection view of the mappings contained in this Map. Each element in this 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. (If the Map is modified while while an iteration over the Collection is in progress, the results of the iteration are undefined.) 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.

  public boolean equals(Object obj)

Compares the specified Object with this Map for equality. Returns true if the given object is also a Map and the two Maps represent the same mappings. More formally, two Maps t1 and t2 represent the same mappings if t1.keySet().equals(t2.keySet()) and for every key k in t1.keySet(), (t1.get(k)==null ? t2.get(k)==null : t1.get(k).equals(t2.get(k))) . This ensures that the equals method works properly across different implementations of the Map interface.

Parameters:

o - Object to be compared for equality with this Map.

Returns:

true if the specified Object is equal to this Map.

Overrides:

equals in class Object

  public int hashCode()

Returns the hash code value for this Map. The hash code of a Map is defined to be the sum of the hashCodes of each Entry in the Map's entries view. This ensures that t1.equals(t2) implies that t1.hashCode()==t2.hashCode() for any two Maps t1 and t2, as required by the general contract of Object.hashCode.

Overrides:

hashCode in class Object