Struct FileStorageStrategy 

pub struct FileStorageStrategy {
    pub format: FormatStrategy,
    pub atomic_write: AtomicWriteConfig,
    pub load_behavior: LoadBehavior,
    pub default_value: Option<Value>,
}

Strategy for file storage operations.

Fields

format: FormatStrategy

File format to use

atomic_write: AtomicWriteConfig

Atomic write configuration

load_behavior: LoadBehavior

Behavior when file doesn’t exist

default_value: Option<Value>

Default value to use when SaveIfMissing is set (as JSON Value)

Implementations

impl FileStorageStrategy

pub fn new() -> Self

Create a new strategy with default values.

pub fn with_format(self, format: FormatStrategy) -> Self

Set the file format.

pub fn with_retry_count(self, count: usize) -> Self

Set the retry count for atomic writes.

pub fn with_cleanup(self, cleanup: bool) -> Self

Set whether to cleanup temporary files.

pub fn with_load_behavior(self, behavior: LoadBehavior) -> Self

Set the load behavior.

pub fn with_default_value(self, value: JsonValue) -> Self

Set the default value to use when SaveIfMissing is set.

This value will be used as the initial content when a file doesn’t exist and LoadBehavior::SaveIfMissing is configured.

Example

use serde_json::json;

let strategy = FileStorageStrategy::new()
    .with_load_behavior(LoadBehavior::SaveIfMissing)
    .with_default_value(json!({
        "test": [{"name": "default", "count": 0}]
    }));

Trait Implementations

impl Clone for FileStorageStrategy

fn clone(&self) -> FileStorageStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FileStorageStrategy

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

Formats the value using the given formatter.

impl Default for FileStorageStrategy

fn default() -> Self

Returns the “default value” for a type.