Type Alias ItemizedPage

pub type ItemizedPage<T> = Page<<T as Config>::MaxItemizedPageSizeBytes>;

Itemized page type

Aliased Type

struct ItemizedPage<T> {
    pub page_version: PageVersion,
    pub schema_id: Option<u16>,
    pub nonce: u16,
    pub data: BoundedVec<u8, <T as Config>::MaxItemizedPageSizeBytes>,
}

Fields

page_version: PageVersion

Page “header” version This field should always be first in the page as the structure evolves, so pallet reads can adapt to evolving page structure.

schema_id: Option<u16>

SchemaId used to serialize this page’s data. Use None for Itemized pages (schema_id will be per-item)

nonce: u16

Incremental nonce to eliminate of signature replay attacks

data: BoundedVec<u8, <T as Config>::MaxItemizedPageSizeBytes>

Data for the page

• Itemized is limited by Config::MaxItemizedPageSizeBytes
• Paginated is limited by Config::MaxPaginatedPageSizeBytes

Trait Implementations

impl<T: Config> ItemizedOperations<T> for ItemizedPage<T>

fn apply_item_actions( &self, schema_id: SchemaId, actions: &[ItemAction<T::MaxItemizedBlobSizeBytes>], ) -> Result<ItemizedPage<T>, PageError>

Applies all actions to specified page and returns the updated page This has O(n) complexity when n is the number of all the bytes in that itemized storage

fn try_parse( &self, include_header: bool, ) -> Result<ParsedItemPage<'_>, PageError>

Parses all the items inside an ItemPage This has O(n) complexity when n is the number of all the bytes in that itemized storage