Trait ZephyrDatabase

pub trait ZephyrDatabase {
    // Required methods
    fn read_raw(
        &self,
        user_id: i64,
        read_point_hash: [u8; 16],
        read_data: &[i64],
        condition: Option<&[WhereCond]>,
        condition_args: Option<Vec<Vec<u8>>>,
    ) -> Result<Vec<u8>, DatabaseError>;
    fn write_raw(
        &self,
        user_id: i64,
        written_point_hash: [u8; 16],
        write_data: &[i64],
        written: Vec<Vec<u8>>,
    ) -> Result<(), DatabaseError>;
    fn update_raw(
        &self,
        user_id: i64,
        written_point_hash: [u8; 16],
        write_data: &[i64],
        written: Vec<Vec<u8>>,
        condition: &[WhereCond],
        condition_args: Vec<Vec<u8>>,
    ) -> Result<(), DatabaseError>;
}

Zephyr-compatible database trait. Implementations of Zephyr that allow from a database from within a Zephyr execution must implement this trait.

Required Methods

fn read_raw( &self, user_id: i64, read_point_hash: [u8; 16], read_data: &[i64], condition: Option<&[WhereCond]>, condition_args: Option<Vec<Vec<u8>>>, ) -> Result<Vec<u8>, DatabaseError>

Reads the database from raw data.

• user id is the identifier of the host, which might be needed for database access control depending on how the implementor initializes the host.
• read point hash is the identifier of the slot Zephyr is trying to read from the database.
• read data is a slice of integers that define the read instruction that Zephyr is providing to the database implementation

fn write_raw( &self, user_id: i64, written_point_hash: [u8; 16], write_data: &[i64], written: Vec<Vec<u8>>, ) -> Result<(), DatabaseError>

Writes the database from raw data.

• user id is the identifier of the host, which might be needed for database access control depending on how the implementor initializes the host.
• written point hash is the identifier of the slot in the database that Zephyr is writing to.
• write data is a slice of integers with instructions about the write operation.
• written is a multidimensional vector with bytes being written as a single value in the database.

fn update_raw( &self, user_id: i64, written_point_hash: [u8; 16], write_data: &[i64], written: Vec<Vec<u8>>, condition: &[WhereCond], condition_args: Vec<Vec<u8>>, ) -> Result<(), DatabaseError>

Updates database rows from raw data.

• user id is the identifier of the host, which might be needed for database access control depending on how the implementor initializes the host.
• written point hash is the identifier of the slot in the database that Zephyr is writing to.
• write data is a slice of integers with instructions about the write operation.
• written is a multidimensional vector with bytes being written as a single value in the database.

Implementors