Struct TaskMeta 

pub struct TaskMeta {

    pub task_id: Uuid,
    pub task_name: String,
    pub result: TaskResult,
    pub created_at: DateTime<Utc>,
    pub started_at: Option<DateTime<Utc>>,
    pub completed_at: Option<DateTime<Utc>>,
    pub worker: Option<String>,
    pub progress: Option<ProgressInfo>,
    pub version: u32,
    pub tags: Vec<String>,
    pub metadata: HashMap<String, Value>,
    pub worker_hostname: Option<String>,
    pub runtime_ms: Option<u64>,
    pub memory_bytes: Option<u64>,
    pub retries: Option<u32>,
    pub queue: Option<String>,
}

Task metadata stored in result backend

Fields

task_id: Uuid

Task ID

task_name: String

Task name

result: TaskResult

Task status/result

created_at: DateTime<Utc>

Timestamp when task was created

started_at: Option<DateTime<Utc>>

Timestamp when task was started

completed_at: Option<DateTime<Utc>>

Timestamp when task completed

worker: Option<String>

Worker that executed the task

progress: Option<ProgressInfo>

Task progress (for long-running tasks)

version: u32

Version number for result versioning

tags: Vec<String>

Tags for categorizing and filtering tasks

metadata: HashMap<String, Value>

Custom metadata for flexible key-value storage

worker_hostname: Option<String>

Worker hostname that executed the task

runtime_ms: Option<u64>

Task runtime in milliseconds

memory_bytes: Option<u64>

Peak memory usage in bytes during execution

retries: Option<u32>

Number of retries before completion

queue: Option<String>

Queue the task was consumed from

Implementations

impl TaskMeta

pub fn new(task_id: Uuid, task_name: String) -> TaskMeta

pub fn has_started(&self) -> bool

Check if the task has started

pub fn has_completed(&self) -> bool

Check if the task has completed

pub fn has_progress(&self) -> bool

Check if the task has progress information

pub fn duration(&self) -> Option<TimeDelta>

Get the task duration if completed

pub fn age(&self) -> TimeDelta

Get the task age (time since creation)

pub fn execution_time(&self) -> Option<TimeDelta>

Get the execution time (time since start)

pub fn is_terminal(&self) -> bool

Check if the task is in a terminal state

pub fn is_active(&self) -> bool

Check if the task is in an active state

pub fn add_tag(&mut self, tag: impl Into<String>)

Add a tag to this task

pub fn remove_tag(&mut self, tag: &str)

Remove a tag from this task

pub fn has_tag(&self, tag: &str) -> bool

Check if this task has a specific tag

pub fn has_any_tag(&self, tags: &[String]) -> bool

Check if this task has any of the specified tags

pub fn has_all_tags(&self, tags: &[String]) -> bool

Check if this task has all of the specified tags

pub fn set_metadata(&mut self, key: impl Into<String>, value: Value)

Set a custom metadata field

pub fn get_metadata(&self, key: &str) -> Option<&Value>

Get a custom metadata field

pub fn remove_metadata(&mut self, key: &str) -> Option<Value>

Remove a custom metadata field

pub fn has_metadata(&self, key: &str) -> bool

Check if a custom metadata field exists

Trait Implementations

impl Clone for TaskMeta

fn clone(&self) -> TaskMeta

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TaskMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TaskMeta

fn deserialize<__D>( __deserializer: __D, ) -> Result<TaskMeta, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TaskMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Serialize for TaskMeta

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.