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Add entities, DAO, and SQL scripts for orders
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‎README.md‎

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* [example-criteria](example-criteria) - Uses the Criteria API.
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* [example-jpms](example-jpms) - Uses the Java Platform Module System (JPMS).
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ER diagram
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---------------------
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The ER diagram for the database used in the example projects is shown below.
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```mermaid
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erDiagram
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DEPARTMENT {
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INTEGER id PK "not null"
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VARCHAR name "not null"
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INTEGER version "not null"
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}
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EMPLOYEE {
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INTEGER id PK "not null"
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VARCHAR name "not null"
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INTEGER age "not null"
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INTEGER salary
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VARCHAR job_type
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TIMESTAMP hiredate
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INTEGER department_id
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INTEGER version "not null"
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TIMESTAMP inserttimestamp
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TIMESTAMP updatetimestamp
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}
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USER {
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INT id PK "auto_increment"
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VARCHAR name "not null"
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VARCHAR email "unique not null"
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TIMESTAMP created_at "default current_timestamp"
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INT version "default 0 not null"
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}
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ROLE {
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INT id PK "auto_increment"
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VARCHAR name "unique not null"
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INT version "default 0 not null"
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}
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USER_ROLE {
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INT id PK "auto_increment"
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INT user_id "not null"
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INT role_id "not null"
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INT version "default 0 not null"
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}
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PRODUCT {
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INT id PK "auto_increment"
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VARCHAR name "not null"
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DECIMAL price "not null"
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INT stock_quantity "not null"
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TIMESTAMP created_at "default current_timestamp"
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INT version "default 0 not null"
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}
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CATEGORY {
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INT id PK "auto_increment"
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VARCHAR name "unique not null"
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INT version "default 0 not null"
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}
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PRODUCT_CATEGORY {
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INT id PK "auto_increment"
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INT product_id "not null"
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INT category_id "not null"
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INT version "default 0 not null"
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}
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ORDER {
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INT id PK "auto_increment"
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INT user_id "not null"
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TIMESTAMP order_date "default current_timestamp"
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VARCHAR status "not null"
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INT version "default 0 not null"
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}
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ORDER_ITEM {
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INT id PK "auto_increment"
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INT order_id "not null"
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INT product_id "not null"
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INT quantity "not null"
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DECIMAL price "not null"
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INT version "default 0 not null"
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}
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PAYMENT {
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INT id PK "auto_increment"
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INT order_id "unique not null"
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DECIMAL amount "not null"
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TIMESTAMP payment_date "default current_timestamp"
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INT version "default 0 not null"
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}
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REVIEW {
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INT id PK "auto_increment"
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INT user_id "not null"
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INT product_id "not null"
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INT rating "check: 1-5"
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TEXT comment
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TIMESTAMP created_at "default current_timestamp"
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INT version "default 0 not null"
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}
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EMPLOYEE }|..|| DEPARTMENT : belongs_to
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USER_ROLE }|..|| USER : "user_id"
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USER_ROLE }|..|| ROLE : "role_id"
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PRODUCT_CATEGORY }|..|| PRODUCT : "product_id"
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PRODUCT_CATEGORY }|..|| CATEGORY : "category_id"
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ORDER }|..|| USER : "user_id"
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ORDER_ITEM }|..|| ORDER : "order_id"
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ORDER_ITEM }|..|| PRODUCT : "product_id"
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PAYMENT ||--|| ORDER : "order_id"
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REVIEW }|..|| USER : "user_id"
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REVIEW }|..|| PRODUCT : "product_id"
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```
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Clone this repository
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---------------------
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‎common/src/main/java/example/common/entity/Category.java‎

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package example.common.entity;
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import java.util.ArrayList;
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import java.util.List;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class Category {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public String name;
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@Version public Integer version;
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@Association public List<Product> productList = new ArrayList<>();
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}

‎common/src/main/java/example/common/entity/Order.java‎

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package example.common.entity;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Table;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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@Table(quote = true)
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public class Order {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public Integer userId;
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public LocalDateTime orderDate;
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public String status;
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@Version public Integer version;
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@Association public List<OrderItem> orderItemList = new ArrayList<>();
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@Association public Payment payment;
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@Association public User user;
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}

‎common/src/main/java/example/common/entity/OrderItem.java‎

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package example.common.entity;
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import java.math.BigDecimal;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Table;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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@Table(name = "order_item")
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public class OrderItem {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public Integer orderId;
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public Integer productId;
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public Integer quantity;
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public BigDecimal price;
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@Version public Integer version;
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@Association public Order order;
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@Association public Product product;
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}

‎common/src/main/java/example/common/entity/Payment.java‎

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package example.common.entity;
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import java.math.BigDecimal;
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import java.time.LocalDateTime;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class Payment {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public Integer orderId;
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public BigDecimal amount;
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public LocalDateTime paymentDate;
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@Version public Integer version;
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@Association public Order order;
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}

‎common/src/main/java/example/common/entity/Product.java‎

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package example.common.entity;
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import java.math.BigDecimal;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class Product {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public String name;
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public BigDecimal price;
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public Integer stockQuantity;
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public LocalDateTime createdAt;
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@Version public Integer version;
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@Association public List<Category> categoryList = new ArrayList<>();
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}

‎common/src/main/java/example/common/entity/ProductCategory.java‎

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package example.common.entity;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class ProductCategory {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public Integer productId;
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public Integer categoryId;
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@Version public Integer version;
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@Association public Product product;
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@Association public Category category;
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}

‎common/src/main/java/example/common/entity/Review.java‎

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package example.common.entity;
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import java.time.LocalDateTime;
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import org.seasar.doma.Association;
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import org.seasar.doma.Entity;
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import org.seasar.doma.GeneratedValue;
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import org.seasar.doma.GenerationType;
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import org.seasar.doma.Id;
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import org.seasar.doma.Version;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class Review {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public Integer userId;
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public Integer productId;
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public Integer rating;
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public String comment;
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public LocalDateTime createdAt;
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@Version public Integer version;
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@Association public User user;
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@Association public Product product;
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}

‎common/src/main/java/example/common/entity/Role.java‎

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package example.common.entity;
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import java.util.ArrayList;
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import java.util.List;
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import org.seasar.doma.*;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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public class Role {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public String name;
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@Version public Integer version;
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@Association public List<User> userList = new ArrayList<>();
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}

‎common/src/main/java/example/common/entity/User.java‎

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package example.common.entity;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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import org.seasar.doma.*;
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import org.seasar.doma.jdbc.entity.NamingType;
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@Entity(naming = NamingType.SNAKE_LOWER_CASE)
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@Table(quote = true)
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public class User {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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public Integer id;
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public String name;
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public String email;
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public LocalDateTime createdAt;
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@Version public Integer version;
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@Association public List<Role> roleList = new ArrayList<>();
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}

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