Interface SegmentAllocator

All Known Implementing Classes:
JdbcSegmentAllocator, MemorySegmentAllocator
public interface SegmentAllocator
Segment Allocator Interface 号段分配器接口

Interface for allocating ID segments from a central source. Implementations should handle concurrent access and persistence.

从中心源分配ID号段的接口。实现应处理并发访问和持久化。

Features | 主要功能:

  • Segment allocation - 号段分配
  • Business tag support - 业务标识支持
  • Configurable step size - 可配置步长

Usage Examples | 使用示例:

SegmentAllocator allocator = JdbcSegmentAllocator.create(dataSource);
Segment segment = allocator.allocate("order");

for (long i = segment.start(); i < segment.end(); i++) {
    // Use i as ID
}

Security | 安全性:

  • Thread-safe: Implementation dependent - 线程安全: 取决于实现
Since:
JDK 25, opencode-base-id V1.0.0
Author:
Leon Soo www.LeonSoo.com
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static final class 
    SegmentAllocator.Segment
    Segment definition 号段定义

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    DEFAULT_STEP
    Default step size 默认步长

  • Method Summary

    Modifier and Type
    Method
    Description
    SegmentAllocator.Segment
    allocate(String bizTag)
    Allocates a segment for the given business tag 为给定业务标识分配号段
    int
    getStep()
    Gets the step size 获取步长

  • Field Details

    • DEFAULT_STEP

      static final int DEFAULT_STEP
      Default step size 默认步长
      See Also:

  • Method Details

    • allocate

      SegmentAllocator.Segment allocate(String bizTag)
      Allocates a segment for the given business tag 为给定业务标识分配号段
      Parameters:
      bizTag - the business tag | 业务标识
      Returns:
      allocated segment | 分配的号段

    • getStep

      int getStep()
      Gets the step size 获取步长
      Returns:
      step size | 步长