Class Tag

Namespace

Opossum.Core

Assembly

Opossum.dll

A key-value label attached to an event that enables tag-based querying.

public record Tag : IEquatable<Tag>

Inheritance

object

Tag

Implements

IEquatable<Tag>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

Tags create a secondary index alongside the event-type index. Use them to scope queries to a specific entity identity, for example:

new Tag("courseId", courseId.ToString())

Within a QueryItem multiple tags are combined with AND logic — an event must carry all specified tags to match.

Constructors

Tag(string, string)

A key-value label attached to an event that enables tag-based querying.

public Tag(string Key, string Value)

Parameters

Key string

The tag key (e.g. "courseId", "studentId").

Value string

The tag value (e.g. a GUID or domain identifier as string).

Remarks

Tags create a secondary index alongside the event-type index. Use them to scope queries to a specific entity identity, for example:

new Tag("courseId", courseId.ToString())

Within a QueryItem multiple tags are combined with AND logic — an event must carry all specified tags to match.

Properties

Key

The tag key (e.g. "courseId", "studentId").

public string Key { get; init; }

Property Value

string

Value

The tag value (e.g. a GUID or domain identifier as string).

public string Value { get; init; }

Property Value

string