Task: Add domain entities with account and user for graphql demo

src/main/kotlin/com/cubetiqs/graphql/demo/domain/AbstractEntity.kt

@@ -0,0 +1,7 @@
+package com.cubetiqs.graphql.demo.domain
+
+import java.io.Serializable
+import javax.persistence.MappedSuperclass
+
+@MappedSuperclass
+abstract class AbstractEntity<T, ID : Serializable> : Serializable

src/main/kotlin/com/cubetiqs/graphql/demo/domain/account/Account.kt

@@ -0,0 +1,62 @@
+package com.cubetiqs.graphql.demo.domain.account
+
+import com.cubetiqs.graphql.demo.domain.AbstractEntity
+import org.hibernate.Hibernate
+import org.springframework.data.annotation.CreatedDate
+import org.springframework.data.annotation.LastModifiedDate
+import java.math.BigDecimal
+import java.util.*
+import javax.persistence.*
+
+@Entity
+@Table(
+    name = "accounts", indexes = [
+        Index(name = "idx_account_id", columnList = "id")
+    ]
+)
+@EntityListeners(AccountEntityListener::class)
+open class Account(
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    var id: Long? = null,
+
+    @Column
+    var balance: BigDecimal = BigDecimal.ZERO,
+
+    @Column
+    var currentBalance: BigDecimal = BigDecimal.ZERO,
+
+    @Column(length = 10)
+    @Enumerated(EnumType.STRING)
+    var accountType: AccountType = AccountType.BASIC,
+
+    @Column(length = 3)
+    @Enumerated(EnumType.STRING)
+    var currency: AccountCurrency = AccountCurrency.USD,
+
+    @Version
+    var version: Long? = null,
+
+    @CreatedDate
+    @Temporal(TemporalType.TIMESTAMP)
+    var createdDate: Date? = null,
+
+    @LastModifiedDate
+    @Temporal(TemporalType.TIMESTAMP)
+    var updatedDate: Date? = null,
+) : AbstractEntity<Account, Long>() {
+    override fun equals(other: Any?): Boolean {
+        if (this === other) return true
+        if (other == null || Hibernate.getClass(this) != Hibernate.getClass(other)) return false
+        other as Account
+
+        return id != null && id == other.id
+    }
+
+    override fun hashCode(): Int = 2083479647
+
+    @Override
+    override fun toString(): String {
+        return this::class.simpleName + "(id = $id , balance = $balance , currentBalance = $currentBalance , accountType = $accountType , currency = $currency , version = $version , createdDate = $createdDate , updatedDate = $updatedDate )"
+    }
+}

src/main/kotlin/com/cubetiqs/graphql/demo/domain/account/AccountCurrency.kt

@@ -0,0 +1,6 @@
+package com.cubetiqs.graphql.demo.domain.account
+
+enum class AccountCurrency {
+    USD,
+    KHR,
+}

src/main/kotlin/com/cubetiqs/graphql/demo/domain/account/AccountEntityListener.kt

@@ -0,0 +1,10 @@
+package com.cubetiqs.graphql.demo.domain.account
+
+import javax.persistence.PrePersist
+
+class AccountEntityListener {
+    @PrePersist
+    fun beforeSave(account: Account) {
+
+    }
+}

src/main/kotlin/com/cubetiqs/graphql/demo/domain/account/AccountType.kt

@@ -0,0 +1,7 @@
+package com.cubetiqs.graphql.demo.domain.account
+
+enum class AccountType {
+    BASIC,
+    PREMIUM,
+    BUSINESS,
+}

src/main/kotlin/com/cubetiqs/graphql/demo/domain/user/User.kt

@@ -0,0 +1,51 @@
+package com.cubetiqs.graphql.demo.domain.user
+
+import com.cubetiqs.graphql.demo.domain.AbstractEntity
+import org.springframework.data.annotation.CreatedDate
+import org.springframework.data.annotation.LastModifiedDate
+import java.util.*
+import javax.persistence.*
+
+@Entity
+@Table(
+    name = "users", indexes = [
+        Index(name = "idx_user_id", columnList = "id"),
+        Index(name = "idx_user_code", columnList = "code"),
+        Index(name = "idx_user_username", columnList = "username"),
+    ]
+)
+@EntityListeners(UserEntityListener::class)
+open class User(
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    var id: Long? = null,
+
+    @Column(unique = true, length = 65, nullable = false)
+    var code: String? = null,
+
+    @Column(unique = true, length = 35, nullable = false)
+    var username: String? = null,
+
+    @Column(length = 100)
+    var password: String? = null,
+
+    @Column(length = 50)
+    var name: String? = null,
+
+    @Version
+    var version: Long? = null,
+
+    @CreatedDate
+    @Temporal(TemporalType.TIMESTAMP)
+    var createdDate: Date? = null,
+
+    @LastModifiedDate
+    @Temporal(TemporalType.TIMESTAMP)
+    var updatedDate: Date? = null,
+) : AbstractEntity<User, Long>() {
+    @Transient
+    fun updatePassword(newPassword: String) {
+        // hash it here
+        this.password = newPassword
+    }
+}

src/main/kotlin/com/cubetiqs/graphql/demo/domain/user/UserEntityListener.kt

@@ -0,0 +1,11 @@
+package com.cubetiqs.graphql.demo.domain.user
+
+import java.util.*
+import javax.persistence.PrePersist
+
+class UserEntityListener {
+    @PrePersist
+    fun beforeSave(user: User) {
+        user.code = UUID.randomUUID().toString()
+    }
+}

src/main/resources/application.yml

@@ -8,6 +8,9 @@ spring:
     username: ${DB_USER:your-username}
     password: ${DB_PASSWORD:your-password}
     driver-class-name: org.postgresql.Driver
+  jpa:
+    hibernate:
+      ddl-auto: update
 
 # Spring Boot Actuator
 management: