Struct InvalidationContext 

pub struct InvalidationContext {
    pub modified_views: Vec<String>,
    pub reason: InvalidationReason,
}

Context for cache invalidation operations.

Encapsulates which views/tables were modified and why, providing structured information for logging and debugging.

Example

use fraiseql_core::cache::InvalidationContext;

// Invalidate after mutation
let ctx = InvalidationContext::for_mutation(
    "createUser",
    vec!["v_user".to_string()]
);

// Invalidate manually
let ctx = InvalidationContext::manual(
    vec!["v_user".to_string(), "v_post".to_string()],
    "data import completed"
);

// Invalidate on schema change
let ctx = InvalidationContext::schema_change(
    vec!["v_user".to_string()],
    "1.0.0",
    "1.1.0"
);

Fields

modified_views: Vec<String>

List of views/tables that were modified.

All cache entries accessing these views will be invalidated.

reason: InvalidationReason

Reason for invalidation.

Used for structured logging and debugging.

Implementations

impl InvalidationContext

pub fn for_mutation(mutation_name: &str, modified_views: Vec<String>) -> Self

Create invalidation context for a mutation.

Used by mutation handlers to invalidate cache entries after modifying data.

Arguments

• mutation_name - Name of the mutation (e.g., “createUser”)
• modified_views - List of views/tables modified by the mutation

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::for_mutation(
    "createUser",
    vec!["v_user".to_string()]
);

assert_eq!(ctx.modified_views, vec!["v_user"]);

pub fn manual(modified_views: Vec<String>, reason: &str) -> Self

Create invalidation context for manual invalidation.

Used by administrators or background jobs to manually invalidate cache entries (e.g., after data import, during maintenance).

Arguments

• modified_views - List of views/tables to invalidate
• reason - Human-readable reason for audit logging

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::manual(
    vec!["v_user".to_string(), "v_post".to_string()],
    "maintenance: rebuilding indexes"
);

assert_eq!(ctx.modified_views.len(), 2);

pub fn schema_change( affected_views: Vec<String>, old_version: &str, new_version: &str, ) -> Self

Create invalidation context for schema change.

Used during deployments when the schema version changes to flush all cached entries that depend on the old schema structure.

Arguments

• affected_views - All views in the schema (typically all views)
• old_version - Previous schema version
• new_version - New schema version

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::schema_change(
    vec!["v_user".to_string(), "v_post".to_string()],
    "1.0.0",
    "1.1.0"
);

assert_eq!(ctx.modified_views.len(), 2);

pub fn to_log_string(&self) -> String

Get a log-friendly description of this invalidation.

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::for_mutation(
    "createUser",
    vec!["v_user".to_string()]
);

assert_eq!(
    ctx.to_log_string(),
    "mutation:createUser affecting 1 view(s)"
);

pub fn view_count(&self) -> usize

Get the number of views affected by this invalidation.

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::manual(
    vec!["v_user".to_string(), "v_post".to_string()],
    "maintenance"
);

assert_eq!(ctx.view_count(), 2);

pub fn affects_view(&self, view: &str) -> bool

Check if this invalidation affects a specific view.

Arguments

• view - View name to check

Example

use fraiseql_core::cache::InvalidationContext;

let ctx = InvalidationContext::for_mutation(
    "createUser",
    vec!["v_user".to_string(), "v_post".to_string()]
);

assert!(ctx.affects_view("v_user"));
assert!(ctx.affects_view("v_post"));
assert!(!ctx.affects_view("v_comment"));

Trait Implementations

impl Clone for InvalidationContext

fn clone(&self) -> InvalidationContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvalidationContext

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

Formats the value using the given formatter.