Struct TableSchema 

pub struct TableSchema {
    pub local_indexes: Vec<LocalSecondaryIndex>,
    pub global_indexes: Vec<GlobalSecondaryIndex>,
    pub ttl_attribute_name: Option<String>,
    pub stream_config: StreamConfig,
}

Table schema with index definitions

Fields

local_indexes: Vec<LocalSecondaryIndex>

Local secondary indexes

global_indexes: Vec<GlobalSecondaryIndex>

Global secondary indexes (Phase 3.2+)

ttl_attribute_name: Option<String>

TTL attribute name (Phase 3.3+) When set, items with this attribute containing a timestamp in the past are considered expired

stream_config: StreamConfig

Stream configuration (Phase 3.4+)

Implementations

impl TableSchema

pub fn new() -> Self

Create an empty schema

pub fn add_local_index(self, index: LocalSecondaryIndex) -> Self

Add a local secondary index

pub fn get_local_index(&self, name: &str) -> Option<&LocalSecondaryIndex>

Get LSI by name

pub fn add_global_index(self, index: GlobalSecondaryIndex) -> Self

Add a global secondary index (Phase 3.2+)

pub fn get_global_index(&self, name: &str) -> Option<&GlobalSecondaryIndex>

Get GSI by name (Phase 3.2+)

pub fn with_ttl(self, attribute_name: impl Into<String>) -> Self

Enable TTL (Time To Live) with the specified attribute name (Phase 3.3+)

Items with this attribute containing a Unix timestamp (seconds since epoch) in the past will be considered expired and automatically deleted.

pub fn with_stream(self, config: StreamConfig) -> Self

Enable streams (Change Data Capture) with the specified configuration (Phase 3.4+)

Streams capture all item-level modifications (INSERT, MODIFY, REMOVE) and make them available for processing.

pub fn is_expired(&self, item: &Item) -> bool

Check if an item is expired based on TTL (Phase 3.3+)

Returns true if:

• TTL is enabled AND
• Item has the TTL attribute AND
• The TTL timestamp is in the past

Trait Implementations

impl Clone for TableSchema

fn clone(&self) -> TableSchema

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableSchema

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

Formats the value using the given formatter.

impl Default for TableSchema

fn default() -> TableSchema

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TableSchema

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TableSchema

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.