AggregatableAttribute Class

Custom attribute that, when applied to class, enables instances of this class to be involved in a parent-child relationship.

Inheritance Hierarchy

System.Object
  System.Attribute
    PostSharp.Extensibility.MulticastAttribute
      PostSharp.Aspects.Aspect
        PostSharp.Aspects.TypeLevelAspect
          PostSharp.Aspects.InstanceLevelAspect
            PostSharp.Patterns.Model.AggregatableAttribute

Namespace: PostSharp.Patterns.Model
Assembly: PostSharp.Patterns.Common (in PostSharp.Patterns.Common.dll) Version: 4.3.48.0 (4.3.48.0)

Syntax

Copy

public sealed class AggregatableAttribute : InstanceLevelAspect, 
	IAttachable, IAggregatable, IAdviceProvider, IAspect, IAspectProvider, 
	IService, IDeserializationCallback

The AggregatableAttribute type exposes the following members.

Constructors

	Name	Description
	AggregatableAttribute	Initializes a new instance of the AggregatableAttribute class.

Properties

	Name	Description
	AspectPriority	Gets or sets the weaving priority of the aspect. (Inherited from Aspect.)
	AttributeExclude	If true, indicates that this attribute removes all other instances of the same attribute type from the set of elements defined by the current instance. (Inherited from MulticastAttribute.)
	AttributeInheritance	Determines whether this attribute is inherited (Inherited from MulticastAttribute.)
	AttributePriority	Gets or sets the priority of the current attribute in case that multiple instances are defined on the same element (lower values are processed before). (Inherited from MulticastAttribute.)
	AttributeReplace	Determines whether this attribute replaces other attributes found on the target declarations. (Inherited from MulticastAttribute.)
	AttributeTargetAssemblies	Gets or sets the assemblies to which the current attribute apply. (Inherited from MulticastAttribute.)
	AttributeTargetElements	Gets or sets the kind of elements to which this custom attributes applies. (Inherited from MulticastAttribute.)
	AttributeTargetExternalMemberAttributes	Gets or sets the visibilities, scopes, virtualities, and implementation of members to which this attribute applies, when the member is external to the current module. (Inherited from MulticastAttribute.)
	AttributeTargetExternalTypeAttributes	Gets or sets the visibilities of types to which this attribute applies, when this type is external to the current module. (Inherited from MulticastAttribute.)
	AttributeTargetMemberAttributes	Gets or sets the visibilities, scopes, virtualities, and implementation of members to which this attribute applies. (Inherited from MulticastAttribute.)
	AttributeTargetMembers	Gets or sets the expression specifying to which members this instance applies. (Inherited from MulticastAttribute.)
	AttributeTargetParameterAttributes	Gets or sets the passing style (by value, out or ref) of parameters to which this attribute applies. (Inherited from MulticastAttribute.)
	AttributeTargetParameters	Gets or sets the expression specifying to which parameters this instance applies. (Inherited from MulticastAttribute.)
	AttributeTargetTypeAttributes	Gets or sets the visibilities of types to which this attribute applies. (Inherited from MulticastAttribute.)
	AttributeTargetTypes	Gets or sets the expression specifying to which types this instance applies. (Inherited from MulticastAttribute.)
	DefaultItemRelationship	Gets or sets the default kind of relationship for collection items.
	DefaultMemberRelationship	Gets or sets the default kind of relationship of fields and automatic properties.
	Instance	Gets the object to which the current aspect has been applied. (Inherited from InstanceLevelAspect.)
	IsParentSurrogate	Determines whether instances of the target class of this custom attribute are parent surrogates.
	IsParentSurrogateSpecified	Determines whether the IsParentSurrogate property has been set.

Methods

	Name	Description
	CompileTimeInitialize	Method invoked at build time to initialize the instance fields of the current aspect. This method is invoked before any other build-time method. (Inherited from TypeLevelAspect.)
	CompileTimeValidate(Object)	Method invoked at build time to ensure that the aspect has been applied to the right target. (Inherited from TypeLevelAspect.)
	CompileTimeValidate(Type)	Method invoked at build time to ensure that the aspect has been applied to the right target. (Inherited from TypeLevelAspect.)
	CreateInstance	Creates a new instance of the aspect based on the current instance, serving as a prototype. (Inherited from InstanceLevelAspect.)
	GetAspectConfiguration	Method invoked at build tome to get the imperative configuration of the current Aspect. (Inherited from Aspect.)
	OnCloned	Method called after the an object enhanced by the current aspect has been cloned using MemberwiseClone(). The this parameter refers to the new aspect instance in the cloned object. (Inherited from InstanceLevelAspect.)
	OnSetValue<T>
	RuntimeInitialize	Initializes the current aspect. (Inherited from TypeLevelAspect.)
	RuntimeInitializeInstance	(Inherited from InstanceLevelAspect.)

Extension Methods

	Name	Description
	GetChildren	Gets the list of children of a specified parent object. (Defined by AggregatableExtensions.)
	GetDistinctChildren	Gets a list of distinct children of a specified parent object. (Defined by AggregatableExtensions.)
	IsDescendantOf	Determines whether a specified object is a descendant of a specified ancestor. (Defined by AggregatableExtensions.)
	QueryInterface<T>	Gets the implementation of a specified interface for the specified object. (Defined by QueryInterfaceExtensions.)
	VisitSelfAndDescendants	Executes a ChildVisitor for the a specified parent object and all its descendants. (Defined by AggregatableExtensions.)

Remarks

This aspect implements the IAggregatable interface, which exposes members such as VisitChildren(ChildVisitor, ChildVisitorOptions, Object) and Parent.

The AggregatableAttribute aspect is implicitly used by several other aspects, including all threading models.

When a class has the AggregatableAttribute aspect, its reference-type fields and automatic properties must be annotated with one of the following attributes: ChildAttribute, ReferenceAttribute or ParentAttribute.

Target classes can customize the AggregatableAttribute aspect by implementing one or many of the members documented in the AggregatableAttributeTargetClass class.

Reference

PostSharp.Patterns.Model Namespace