Commercial paper proto definition

commercial_paper.proto

syntax = "proto3";
package schema;

import "google/protobuf/timestamp.proto";

message CommercialPaper {

    enum State {
        ISSUED = 0;
        TRADING = 1;
        REDEEMED = 2;
    }

    string issuer = 1;
    string paper_number = 2;
    string owner = 3;
    google.protobuf.Timestamp issue_date = 4;
    google.protobuf.Timestamp maturity_date = 5;
    int32 face_value = 6;
    State state = 7;
}

// CommercialPaperId identifier part
message CommercialPaperId {
    string issuer = 1;
    string paper_number = 2;
}

// IssueCommercialPaper event
message IssueCommercialPaper {
    string issuer = 1;
    string paper_number = 2;
    google.protobuf.Timestamp issue_date = 3;
    google.protobuf.Timestamp maturity_date = 4;
    int32 face_value = 5;
}

// BuyCommercialPaper event
message BuyCommercialPaper {
    string issuer = 1;
    string paper_number = 2;
    string current_owner = 3;
    string new_owner = 4;
    int32 price = 5;
    google.protobuf.Timestamp purchase_date = 6;
}

// RedeemCommercialPaper event
message RedeemCommercialPaper {
    string issuer = 1;
    string paper_number = 2;
    string redeeming_owner = 3;
    google.protobuf.Timestamp redeem_date = 4;
}