Struct IdGeneratorOptions 

pub struct IdGeneratorOptions {
    pub method: Option<u8>,
    pub base_time: Option<i64>,
    pub worker_id: Option<u32>,
    pub worker_id_bit_len: Option<u8>,
    pub seq_bit_len: Option<u8>,
    pub max_seq_num: Option<u32>,
    pub min_seq_num: Option<u32>,
    pub top_over_cost_count: Option<u32>,
}

Options for CoreIdGenerator

Parameters

• method: 1 means snowflake with shift.
• base_time: base time of the snowflake algorithm, in milliseconds, can not exceed the current system time.
• worker_id: should be decided externally, smaller than 2^worker_id_bit_len-1.
• worker_id_bit_len: the bit length of worker_id, default to 8, in range [1, 15]. worker_id_bit_len + seq_bit_len should be less than 22.
• seq_bit_len: the bit length of sequence, default to 8, in range [3, 21].
• max_seq_num: set the range of [min_seq_num, 2^seq_bit_len-1], default to 0 meaning 2^seq_bit_len-1.
• min_seq_num: default to 5, range [5, max_seq_num], reserved for manually value and time turned back.
• top_over_cost_count: max shift count(included), default to 2000, recommended range is [500, 20000] (associated with computing ability).

Fields

method: Option<u8>

Snowflake 1 for shift

base_time: Option<i64>

base time (in milliseconds), can not exceed the current system time

worker_id: Option<u32>

should be decided externally, smaller than 2^worker_id_bit_len-1

worker_id_bit_len: Option<u8>

worker_id_bit_len + seq_bit_len should be less than 22 default to 8, in range [1, 15]

seq_bit_len: Option<u8>

default to 8, in range [3, 21]

max_seq_num: Option<u32>

set the range of [min_seq_num, 2^seq_bit_len-1], default to 0 meaning 2^seq_bit_len-1

min_seq_num: Option<u32>

default to 5, range [5, max_seq_num], reserved for manually value and time turned back

top_over_cost_count: Option<u32>

max shift count(included), default to 2000, recommended range is [500, 20000] (associated with computing ability)

Implementations

impl IdGeneratorOptions

pub fn new() -> Self

pub fn method(self, method: u8) -> Self

pub fn base_time(self, base_time: i64) -> Self

pub fn worker_id(self, worker_id: u32) -> Self

pub fn worker_id_bit_len(self, worker_id_bit_len: u8) -> Self

pub fn seq_bit_len(self, seq_bit_len: u8) -> Self

pub fn max_seq_num(self, max_seq_num: u32) -> Self

pub fn min_seq_num(self, min_seq_num: u32) -> Self

pub fn top_over_cost_count(self, top_over_cost_count: u32) -> Self

Trait Implementations

impl Clone for IdGeneratorOptions

fn clone(&self) -> IdGeneratorOptions

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for IdGeneratorOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IdGeneratorOptions

fn default() -> IdGeneratorOptions

Returns the “default value” for a type.

impl PartialEq for IdGeneratorOptions

fn eq(&self, other: &IdGeneratorOptions) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for IdGeneratorOptions