Trait CassCollection

pub trait CassCollection: Sized {
    type Value;

    // Required methods
    fn with_capacity(capacity: usize) -> Self;
    fn new_from_data_type(value: DataType, item_count: usize) -> Self;
    fn data_type(&self) -> ConstDataType<'_>;
    fn append_int8(&mut self, value: i8) -> Result<&mut Self>;
    fn append_int16(&mut self, value: i16) -> Result<&mut Self>;
    fn append_int32(&mut self, value: i32) -> Result<&mut Self>;
    fn append_uint32(&mut self, value: u32) -> Result<&mut Self>;
    fn append_int64(&mut self, value: i64) -> Result<&mut Self>;
    fn append_float(&mut self, value: f32) -> Result<&mut Self>;
    fn append_double(&mut self, value: f64) -> Result<&mut Self>;
    fn append_bool(&mut self, value: bool) -> Result<&mut Self>;
    fn append_string(&mut self, value: &str) -> Result<&mut Self>;
    fn append_bytes(&mut self, value: Vec<u8>) -> Result<&mut Self>;
    fn append_uuid(&mut self, value: Uuid) -> Result<&mut Self>;
    fn append_inet(&mut self, value: Inet) -> Result<&mut Self>;
    fn append_list(&mut self, value: List) -> Result<&mut Self>;
    fn append_set(&mut self, value: Set) -> Result<&mut Self>;
    fn append_map(&mut self, value: Map) -> Result<&mut Self>;
    fn append_tuple(&mut self, value: Tuple) -> Result<&mut Self>;
    fn append_user_type(&mut self, value: &UserType) -> Result<&mut Self>;

    // Provided method
    fn new() -> Self { ... }
}

A generic Cassandra collection that needs to go away

Required Associated Types

type Value

The type of value held by this collection

Required Methods

fn with_capacity(capacity: usize) -> Self

Creates a new collection, specifying a capacity which will be used as a size hint to avoid re-allocations of the collection internally.

If you know the number of items you’ll insert into the collection ahead of time, it is recommended to use this function over CassCollection::new.

fn new_from_data_type(value: DataType, item_count: usize) -> Self

Creates a new collection from an existing data type.

fn data_type(&self) -> ConstDataType<'_>

Gets the data type of a collection.

fn append_int8(&mut self, value: i8) -> Result<&mut Self>

Appends a “tinyint” to the collection.

fn append_int16(&mut self, value: i16) -> Result<&mut Self>

Appends an “smallint” to the collection.

fn append_int32(&mut self, value: i32) -> Result<&mut Self>

Appends an “int” to the collection.

fn append_uint32(&mut self, value: u32) -> Result<&mut Self>

Appends a “date” to the collection.

fn append_int64(&mut self, value: i64) -> Result<&mut Self>

Appends a “bigint”, “counter”, “timestamp” or “time” to the collection.

fn append_float(&mut self, value: f32) -> Result<&mut Self>

Appends a “float” to the collection.

fn append_double(&mut self, value: f64) -> Result<&mut Self>

Appends a “double” to the collection.

fn append_bool(&mut self, value: bool) -> Result<&mut Self>

Appends a “boolean” to the collection.

fn append_string(&mut self, value: &str) -> Result<&mut Self>

Appends an “ascii”, “text” or “varchar” to the collection.

fn append_bytes(&mut self, value: Vec<u8>) -> Result<&mut Self>

Appends a “blob”, “varint” or “custom” to the collection.

fn append_uuid(&mut self, value: Uuid) -> Result<&mut Self>

Appends a “uuid” or “timeuuid” to the collection.

fn append_inet(&mut self, value: Inet) -> Result<&mut Self>

Appends an “inet” to the collection.

fn append_list(&mut self, value: List) -> Result<&mut Self>

Appends a “list” to the collection.

fn append_set(&mut self, value: Set) -> Result<&mut Self>

Appends a “set” to the collection.

fn append_map(&mut self, value: Map) -> Result<&mut Self>

Appends a “map” to the collection.

fn append_tuple(&mut self, value: Tuple) -> Result<&mut Self>

Appends a “tuple” to the collection.

fn append_user_type(&mut self, value: &UserType) -> Result<&mut Self>

Appends a “udt” to the collection.

Provided Methods

fn new() -> Self

Creates a new collection.

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 CassCollection for List

type Value = CassCollection_

impl CassCollection for Map

type Value = CassCollection_

impl CassCollection for Set

type Value = CassCollection_