[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]
Assembly: NEsper (in NEsper.dll)
A generic dictionary, which allows its keys
to be garbage collected if there are no other references
to them than from the dictionary itself.
Namespace: net.esper.compat
Assembly: NEsper (in NEsper.dll)
Syntax
Visual Basic (Declaration) |
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<DefaultMemberAttribute("Item")> _ Public NotInheritable Class WeakDictionary(Of TKey As Class, TValue As Class) _ Implements IDictionary(Of TKey, TValue), ICollection(Of KeyValuePair(Of TKey, TValue)), IEnumerable(Of KeyValuePair(Of TKey, TValue)), IEnumerable |
C# |
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[DefaultMemberAttribute("Item")] public sealed class WeakDictionary<TKey, TValue> : IDictionary<TKey, TValue>, ICollection<KeyValuePair<TKey, TValue>>, IEnumerable<KeyValuePair<TKey, TValue>>, IEnumerable where TKey : class where TValue : class |
Visual C++ |
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[DefaultMemberAttribute(L"Item")] generic<typename TKey, typename TValue> where TKey : ref class where TValue : ref class public ref class WeakDictionary sealed : IDictionary<TKey, TValue>, ICollection<KeyValuePair<TKey, TValue>>, IEnumerable<KeyValuePair<TKey, TValue>>, IEnumerable |
Type Parameters
- TKey
- TValue
Remarks
If the key of a particular entry in the dictionary has been
collected, then both the key and value become effectively
unreachable. However, left-over WeakReference objects for the key
will physically remain in the dictionary until RemoveCollectedEntries
is called. This will lead to a discrepancy between the Count property
and the number of iterations required to visit all of the elements of
the dictionary using its enumerator or those of the Keys and Values
collections. Similarly, CopyTo will copy fewer than Count elements
in this situation.