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Bulletin Board System Example

TODO

This document is under construction. Full implementation examples will be added.

Overview​

A step-by-step guide to implementing a BBS (Bulletin Board System) using ElastiCORE.

Domain Model​

Entity Definition​

entity:
  BaseEntity:
    meta: entity @abstract
    fields:
      createDate: datetime @search(between) @updatable(false) @jpa:org.springframework.data.annotation.CreatedDate
      createdBy: string(20) @updatable(false) @jpa:org.springframework.data.annotation.CreatedBy

  AuditEntity:
    meta: entity @abstract @extend(BaseEntity)
    fields:
      lastModifiedBy: string(20) @jpa:org.springframework.data.annotation.LastModifiedBy
      lastModifiedDate: datetime @jpa:org.springframework.data.annotation.LastModifiedDate

  Board:
    meta: entity @expose(50) @extend(AuditEntity)
    fields:
      bid: long @id @sequence -- Board ID
      name: string(100)! @search(like) -- Board name
      boardType: BoardType -- Board type
      articles: List<Article> @dtype(List<ArticleDTO>) @OneToMany(mappedBy="board")

  Article:
    meta: entity @expose(50) @extend(AuditEntity)
    fields:
      aid: string @id @genid -- Article ID
      title: string(200)! @search(like) -- Title
      content: text -- Content body
      board: Board @ManyToOne -- Parent board

Enumeration Definition​

enumeration:
  BoardType:
    meta: enum @db(code) @json(code)
    fields:
      code: string(2) @length(3) -- Type code
      name: string(50) -- Name
    enum:
      PUBLIC: PB,Public
      PRIVATE: PV,Private
      NOTICE: NT,Notice

DTO Definition​

dto:
  ArticleDTO:
    meta: dto @template(Article)
    fields:
      boardName: string @ref(board.name) -- Board name
      boardType: BoardType @ref(board.boardType) -- Board type

Code Generation and Execution​

# 1. Generate code
./gradlew elcore

# 2. Build
./gradlew build

# 3. Run
./gradlew bootRun

Generated API​

Customization​