Trait DocumentType 

pub trait DocumentType:
    Clone
    + Send
    + Sync
    + 'static {
    const TYPE_ID: u8;
    const TYPE_NAME: &'static str;

    // Required methods
    fn identity(&self) -> (u32, u64);
    fn encode(&self) -> Vec<u8> ;
    fn decode(data: &[u8]) -> Option<Self>
       where Self: Sized;
    fn merge(&mut self, other: &Self) -> bool;

    // Provided methods
    fn to_delta_op(&self) -> Option<AppOperation> { ... }
    fn apply_delta_op(&mut self, _op: &AppOperation) -> bool { ... }
}

A registered document type that can be synced through the mesh.

Implementations must be deterministic - the same logical state must encode consistently for merge operations to work correctly. Document identity (source_node, timestamp) is used for deduplication instead of content hash, since CRDT merge may change byte ordering.

Required Associated Constants

const TYPE_ID: u8

Unique type identifier (marker byte in 0xC0-0xCF range).

const TYPE_NAME: &'static str

Human-readable type name for debugging.

Required Methods

fn identity(&self) -> (u32, u64)

Document identity for deduplication.

Returns (source_node, timestamp) tuple that uniquely identifies this document instance.

fn encode(&self) -> Vec<u8>

Encode to wire format (payload only, not including type header).

fn decode(data: &[u8]) -> Option<Self>

where Self: Sized,

Decode from wire format.

Input is the payload after the type header.

fn merge(&mut self, other: &Self) -> bool

Merge with another instance using CRDT semantics.

Returns true if our state changed.

Provided Methods

fn to_delta_op(&self) -> Option<AppOperation>

Convert to a delta operation for efficient sync.

Returns None if this type doesn’t support delta sync (will use full-state sync instead).

fn apply_delta_op(&mut self, _op: &AppOperation) -> bool

Apply a delta operation to this document.

Returns true if state changed.

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

impl DocumentType for CannedMessageDocument

const TYPE_ID: u8 = CANNED_MESSAGE_TYPE_ID

const TYPE_NAME: &'static str = "CannedMessage"