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Class AdvisableHashSet<T>

A collection type similar to HashSet<T> into which advices can be injected dynamically.

Inheritance
AdvisableHashSet<T>
Namespace: PostSharp.Patterns.Collections
Assembly: PostSharp.Patterns.Common.dll
Syntax
public class AdvisableHashSet<T> : DynamicallyAdvisableObject, ISerializable, IDeserializationCallback, ISet<T>, ICollection<T>, IEnumerable<T>, IDynamicallyAdvisableHashSet, IDynamicallyAdvisable, IQueryInterface, ICollection, IEnumerable
Type Parameters
Name Description
T

The type of elements in the collection

Remarks

The API of this class is compatible with the HashSet<T> class. It provides some additions but preserves the same design and naming conventions.

Classes that derive from HashSet<T> can add functionalities by overriding protected methods or by defining new public methods. New public methods wrap their logic in a call of the ExecuteWithAdvices<TResult, TAction>(ObjectAccessLevel, ref TAction) method, which applies boundary aspects. Public methods can access the data structure thanks to protected methods, which have a name ending in Item, for instance AddItem(T). Public methods should not use other public methods of the class, as it may cause inconsistent invocation of advises and performance issues.

Constructors

Name Description
AdvisableHashSet()

Initializes a new instance of the AdvisableHashSet<T> class that is empty and uses the default equality comparer for the set type.

AdvisableHashSet(IEnumerable<T>)

Initializes a new instance of the AdvisableHashSet<T> class that uses the default equality comparer for the set type, contains elements copied from the specified collection, and has sufficient capacity to accommodate the number of elements copied.

AdvisableHashSet(IEnumerable<T>, IEqualityComparer<T>)

Initializes a new instance of the AdvisableHashSet<T> class that uses the specified equality comparer for the set type, contains elements copied from the specified collection, and has sufficient capacity to accommodate the number of elements copied.

AdvisableHashSet(IEqualityComparer<T>)

Initializes a new instance of the AdvisableHashSet<T> class that is empty and uses the specified equality comparer for the set type.

Properties

Name Description
Comparer

Gets the IEqualityComparer<T> object that is used to determine equality for the values in the set.

Count

Methods

Name Description
Add(T)
AddItem(T)

Inserts an element into the underlying set.

ChangeManyItems(IList<T>, IList<T>)

Modifies the underlying set by adding and removing the specified items.

Clear()
ClearItems()

Removes all elements from the underlying set.

Contains(T)
CopyTo(T[])

Copies the elements of an AdvisableHashSet<T> object to an array.

CopyTo(T[], int)
CopyTo(T[], int, int)

Copies the specified number of elements of an AdvisableHashSet<T> object to an array, starting at the specified array index.

CreateSetComparer()

Returns an IEqualityComparer object that can be used for equality testing of a AdvisableHashSet<T> object.

ExceptWith(IEnumerable<T>)
GetAdviceEnumerator()

Gets an AdviceEnumerator<T> for the ICollectionDynamicAdvice<T> interface.

GetEnumerator()

Returns an enumerator that iterates through the AdvisableHashSet<T>.

GetObjectData(SerializationInfo, StreamingContext)
IntersectWith(IEnumerable<T>)
IsProperSubsetOf(IEnumerable<T>)
IsProperSupersetOf(IEnumerable<T>)
IsSubsetOf(IEnumerable<T>)
IsSupersetOf(IEnumerable<T>)
OnDeserialization(object)
Overlaps(IEnumerable<T>)
Remove(T)
RemoveItem(T)

Removes an element from the underlying collection.

RemoveWhere(Predicate<T>)

Removes all elements that match the conditions defined by the specified predicate from a HashSet<T> collection.

SetEquals(IEnumerable<T>)
SymmetricExceptWith(IEnumerable<T>)
TrimExcess()

Sets the capacity of a AdvisableHashSet<T> object to the actual number of elements it contains, rounded up to a nearby, implementation-specific value.

UnionWith(IEnumerable<T>)

Extension Methods