This abstract base
class is used to implement
specialized dictionary style collections. Classes derived from
DictionaryBase allow for strongly typed key and
value pairs. A set of protected instance methods is defined to be
overridden by derived classes. These methods allow a class to specify
customized processes when functions are performed on the derived
object. For example, OnSet( ) lets you perform a
function before you set a new element in the dictionary, while
OnSetComplete( ) lets you perform a function after
a value is set.
public abstract class DictionaryBase : IDictionary, ICollection, IEnumerable {
// Protected Constructors
protected DictionaryBase( );
// Public Instance Properties
public int Count{get; }
// implements ICollection
// Protected Instance Properties
protected IDictionary Dictionary{get; }
protected Hashtable InnerHashtable{get; }
// Public Instance Methods
public void Clear( );
// implements IDictionary
public void CopyTo(Array array, int index);
// implements ICollection
public IDictionaryEnumerator GetEnumerator( );
// implements IDictionary
// Protected Instance Methods
protected virtual void OnClear( );
protected virtual void OnClearComplete( );
protected virtual object OnGet(object key, object currentValue);
protected virtual void OnInsert(object key, object value);
protected virtual void OnInsertComplete(object key, object value);
protected virtual void OnRemove(object key, object value);
protected virtual void OnRemoveComplete(object key, object value);
protected virtual void OnSet(object key, object oldValue, object newValue);
protected virtual void OnSetComplete(object key, object oldValue, object newValue);
protected virtual void OnValidate(object key, object value);
}
