progscrape_application

Trait Storage

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pub trait Storage: Send + Sync {
    // Required methods
    fn most_recent_story(&self) -> Result<StoryDate, PersistError>;
    fn shard_range(&self) -> Result<ShardRange, PersistError>;
    fn story_count(&self) -> Result<StorageSummary, PersistError>;
    fn fetch_count(
        &self,
        query: StoryQuery,
        max: usize,
    ) -> Result<usize, PersistError>;
    fn fetch_detail_one(
        &self,
        query: StoryQuery,
    ) -> Result<Option<HashMap<String, Vec<String>>>, PersistError>;

    // Provided methods
    fn fetch<S: StoryScrapePayload>(
        &self,
        query: StoryQuery,
        max: usize,
    ) -> Result<Vec<Story<S>>, PersistError>
       where Self: StorageFetch<S> { ... }
    fn fetch_one<S: StoryScrapePayload>(
        &self,
        query: StoryQuery,
    ) -> Result<Option<Story<S>>, PersistError>
       where Self: StorageFetch<S> { ... }
}
Expand description

The underlying storage engine.

Required Methods§

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fn most_recent_story(&self) -> Result<StoryDate, PersistError>

Returns the most recent story date.

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fn shard_range(&self) -> Result<ShardRange, PersistError>

Returns the range of shards for this index.

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fn story_count(&self) -> Result<StorageSummary, PersistError>

Count the docs in this index, breaking it out by index segment.

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fn fetch_count( &self, query: StoryQuery, max: usize, ) -> Result<usize, PersistError>

Count the docs matching the query, at most max.

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fn fetch_detail_one( &self, query: StoryQuery, ) -> Result<Option<HashMap<String, Vec<String>>>, PersistError>

Fetches the index-specific story details for a single story.

Provided Methods§

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fn fetch<S: StoryScrapePayload>( &self, query: StoryQuery, max: usize, ) -> Result<Vec<Story<S>>, PersistError>
where Self: StorageFetch<S>,

Fetch a list of stories with the specified payload type.

Source

fn fetch_one<S: StoryScrapePayload>( &self, query: StoryQuery, ) -> Result<Option<Story<S>>, PersistError>
where Self: StorageFetch<S>,

Fetch a single story with the specified payload type.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§