Struct Context 

#[non_exhaustive]
pub struct Context {
    pub name: String,
    pub lifespan_count: i32,
    pub parameters: Option<Struct>,
    /* private fields */
}

Available on crate features answer-records or contexts or intents or participants or sessions only.

Dialogflow contexts are similar to natural language context. If a person says to you “they are orange”, you need context in order to understand what “they” is referring to. Similarly, for Dialogflow to handle an end-user expression like that, it needs to be provided with context in order to correctly match an intent.

Using contexts, you can control the flow of a conversation. You can configure contexts for an intent by setting input and output contexts, which are identified by string names. When an intent is matched, any configured output contexts for that intent become active. While any contexts are active, Dialogflow is more likely to match intents that are configured with input contexts that correspond to the currently active contexts.

For more information about context, see the Contexts guide.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

name: String

Required. The unique identifier of the context. Format: projects/<Project ID>/agent/sessions/<Session ID>/contexts/<Context ID>, or projects/<Project ID>/agent/environments/<Environment ID>/users/<User ID>/sessions/<Session ID>/contexts/<Context ID>.

The Context ID is always converted to lowercase, may only contain characters in a-zA-Z0-9_-% and may be at most 250 bytes long.

If Environment ID is not specified, we assume default ‘draft’ environment. If User ID is not specified, we assume default ‘-’ user.

The following context names are reserved for internal use by Dialogflow. You should not use these contexts or create contexts with these names:

• __system_counters__
• *_id_dialog_context
• *_dialog_params_size

lifespan_count: i32

Optional. The number of conversational query requests after which the context expires. The default is 0. If set to 0, the context expires immediately. Contexts expire automatically after 20 minutes if there are no matching queries.

parameters: Option<Struct>

Optional. The collection of parameters associated with this context.

Depending on your protocol or client library language, this is a map, associative array, symbol table, dictionary, or JSON object composed of a collection of (MapKey, MapValue) pairs:

• MapKey type: string
• MapKey value: parameter name
• MapValue type: If parameter’s entity type is a composite entity then use map, otherwise, depending on the parameter value type, it could be one of string, number, boolean, null, list or map.
• MapValue value: If parameter’s entity type is a composite entity then use map from composite entity property names to property values, otherwise, use parameter value.

Implementations

impl Context

pub fn new() -> Self

pub fn set_name<T: Into<String>>(self, v: T) -> Self

Sets the value of name.

Example

let x = Context::new().set_name("example");

pub fn set_lifespan_count<T: Into<i32>>(self, v: T) -> Self

Sets the value of lifespan_count.

Example

let x = Context::new().set_lifespan_count(42);

pub fn set_parameters<T>(self, v: T) -> Self

where T: Into<Struct>,

Sets the value of parameters.

Example

use wkt::Struct;
let x = Context::new().set_parameters(Struct::default()/* use setters */);

pub fn set_or_clear_parameters<T>(self, v: Option<T>) -> Self

where T: Into<Struct>,

Sets or clears the value of parameters.

Example

use wkt::Struct;
let x = Context::new().set_or_clear_parameters(Some(Struct::default()/* use setters */));
let x = Context::new().set_or_clear_parameters(None::<Struct>);

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Context

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

Formats the value using the given formatter.

impl Default for Context

fn default() -> Context

Returns the “default value” for a type.

impl Message for Context

fn typename() -> &'static str

The typename of this message.

impl PartialEq for Context

fn eq(&self, other: &Context) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Context