Struct ActionContext 

pub struct ActionContext {
    pub objects: HashMap<String, Object>,
    pub parameters: HashMap<String, Value>,
    pub metadata: HashMap<String, String>,
}

Context passed to actions containing relevant objects and traits

Fields

objects: HashMap<String, Object>

Objects relevant to this action

parameters: HashMap<String, Value>

Additional parameters for the action

metadata: HashMap<String, String>

Metadata about the action execution

Implementations

impl ActionContext

pub fn new() -> Self

Create a new action context

pub fn with_capacity( expected_objects: usize, expected_parameters: usize, ) -> Self

Create a new action context with expected capacity

pub fn add_object(&mut self, name: impl Into<String>, object: Object)

Add an object to the context

pub fn get_object(&self, name: &str) -> Option<&Object>

Get an object from the context

pub fn get_objects(&self, names: &[&str]) -> HashMap<String, &Object>

Get multiple objects efficiently

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

Add a parameter to the context

pub fn get_parameter(&self, name: &str) -> Option<&Value>

Get a parameter from the context

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

Add metadata to the context

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

Get metadata from the context

pub fn object_count(&self) -> usize

Get object count

pub fn parameter_count(&self) -> usize

Get parameter count

pub fn metadata_count(&self) -> usize

Get metadata count

pub fn reserve_objects(&mut self, additional: usize)

Reserve capacity for objects

pub fn reserve_parameters(&mut self, additional: usize)

Reserve capacity for parameters

pub fn clear_objects(&mut self)

Clear all objects

pub fn clear_parameters(&mut self)

Clear all parameters

pub fn clear_metadata(&mut self)

Clear all metadata

Trait Implementations

impl Clone for ActionContext

fn clone(&self) -> ActionContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ActionContext

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

Formats the value using the given formatter.

impl Default for ActionContext

fn default() -> Self

Returns the “default value” for a type.