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Class ComposeAfterAttribute

Indicates that a composer requires another composer.

Inheritance

System.Object

System.Attribute

Namespace: Umbraco.Core.Composing

Assembly: Umbraco.Core.dll

Syntax

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface, AllowMultiple = true, Inherited = false)]
public sealed class ComposeAfterAttribute : Attribute, _Attribute

Remarks

This attribute is not inherited. This means that a composer class inheriting from another composer class does not inherit its requirements. However, the runtime checks the interfaces of every composer for their requirements, so requirements declared on interfaces are inherited by every composer class implementing the interface.

When targeting a class, indicates a dependency on the composer which must be enabled, unless the requirement has explicitly been declared as weak (and then, only if the composer is enabled).

When targeting an interface, indicates a dependency on enabled composers implementing the interface. It could be no composer at all, unless the requirement has explicitly been declared as strong (and at least one composer must be enabled).

Constructors

ComposeAfterAttribute(Type)

Initializes a new instance of the ComposeAfterAttribute class.

Declaration

public ComposeAfterAttribute(Type requiredType)

Parameters

Type	Name	Description
System.Type	requiredType	The type of the required composer.

ComposeAfterAttribute(Type, Boolean)

Initializes a new instance of the ComposeAfterAttribute class.

Declaration

public ComposeAfterAttribute(Type requiredType, bool weak)

Parameters

Type	Name	Description
System.Type	requiredType	The type of the required composer.
System.Boolean	weak	A value indicating whether the requirement is weak.

Properties

RequiredType

Gets the required type.

Declaration

public Type RequiredType { get; }

Property Value

Type	Description
System.Type

Weak

Gets a value indicating whether the requirement is weak.

Declaration

public bool? Weak { get; }

Property Value

Type	Description
System.Nullable<System.Boolean>

Remarks

Returns true if the requirement is weak (requires the other composer if it is enabled), false if the requirement is strong (requires the other composer to be enabled), and null if unspecified, in which case it is strong for classes and weak for interfaces.