Struct pregel_rs::pregel::SendMessage

pub struct SendMessage<'a> {
    pub message_direction: Expr,
    pub send_message: Box<dyn FnMut() -> Expr + 'a>,
}

This defines a struct SendMessage in Rust. It has two properties: message_direction and send_message. The message_direction property is the identifier for the direction of the message. The send_message property is the function that determines which messages to send from a vertex to its neighbors.

Fields

message_direction: Expr

message_direction is the identifier for the direction of the message.

send_message: Box<dyn FnMut() -> Expr + 'a>

send_message is the function that determines which messages to send from a vertex to its neighbors.

Implementations

impl<'a> SendMessage<'a>

pub fn new( message_direction: MessageReceiver, send_message: Box<dyn FnMut() -> Expr + '_> ) -> SendMessage<'_>

The function creates a new instance of the SendMessage struct with the specified message direction and send message expression.

Arguments:

• message_direction: An enum that specifies whether the message should be sent to the source vertex or the destination vertex of an edge.
• send_message: send_message is an expression that represents the message that will be sent from a vertex to its neighbors during the Pregel computation. It can be any valid Rust expression that evaluates to a DataFrame.

Returns:

A new instance of the SendMessage struct.