backend/src/main/java/core/api/models/timemanager/tasks/TaskEntityInfo.java

@@ -0,0 +1,66 @@
+package core.api.models.timemanager.tasks;
+
+import core.api.models.timemanager.taskgroup.TaskgroupEntityInfo;
+import core.entities.timemanager.Task;
+
+import java.time.LocalDate;
+
+public class TaskEntityInfo {
+
+    private long taskID;
+    private String taskName;
+
+    private int eta;
+
+    private LocalDate startDate;
+
+    private LocalDate deadline;
+
+    public TaskEntityInfo(Task task) {
+        this.taskID = task.getTaskID();
+        this.taskName = task.getTaskName();
+        this.eta = task.getEta();
+        this.startDate = task.getStartDate();
+        this.deadline = task.getDeadline();
+    }
+
+    public long getTaskID() {
+        return taskID;
+    }
+
+    public void setTaskID(long taskID) {
+        this.taskID = taskID;
+    }
+
+    public String getTaskName() {
+        return taskName;
+    }
+
+    public void setTaskName(String taskName) {
+        this.taskName = taskName;
+    }
+
+    public int getEta() {
+        return eta;
+    }
+
+    public void setEta(int eta) {
+        this.eta = eta;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+
+    public LocalDate getDeadline() {
+        return deadline;
+    }
+
+    public void setDeadline(LocalDate deadline) {
+        this.deadline = deadline;
+    }
+}

backend/src/main/java/core/api/models/timemanager/tasks/TaskFieldInfo.java

@@ -0,0 +1,48 @@
+package core.api.models.timemanager.tasks;
+
+import org.hibernate.validator.constraints.Length;
+
+import javax.validation.constraints.NotBlank;
+import java.time.LocalDate;
+
+public class TaskFieldInfo {
+
+    @NotBlank
+    @Length(max = 255)
+    private String taskName;
+    private int eta;
+    private LocalDate startDate;
+    private LocalDate deadline;
+
+    public String getTaskName() {
+        return taskName;
+    }
+
+    public void setTaskName(String taskName) {
+        this.taskName = taskName;
+    }
+
+    public int getEta() {
+        return eta;
+    }
+
+    public void setEta(int eta) {
+        this.eta = eta;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+
+    public LocalDate getDeadline() {
+        return deadline;
+    }
+
+    public void setDeadline(LocalDate deadline) {
+        this.deadline = deadline;
+    }
+}

backend/src/main/java/core/entities/timemanager/Task.java

@@ -0,0 +1,76 @@
+package core.entities.timemanager;
+
+import javax.persistence.*;
+import java.time.LocalDate;
+
+@Entity
+@Table(name = "tasks")
+public class Task {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private long taskID;
+
+    @ManyToOne
+    @JoinColumn(name = "taskgroup_id")
+    private Taskgroup taskgroup;
+    private String taskName;
+
+    private LocalDate startDate;
+
+    private LocalDate deadline;
+
+    private int eta;
+
+    public Task(Taskgroup taskgroup, String taskName) {
+        this.taskgroup = taskgroup;
+        this.taskName = taskName;
+    }
+
+    public Task() {
+    }
+
+    public long getTaskID() {
+        return taskID;
+    }
+
+    public Taskgroup getTaskgroup() {
+        return taskgroup;
+    }
+
+    public void setTaskgroup(Taskgroup taskgroup) {
+        this.taskgroup = taskgroup;
+    }
+
+    public String getTaskName() {
+        return taskName;
+    }
+
+    public void setTaskName(String taskName) {
+        this.taskName = taskName;
+    }
+
+    public LocalDate getStartDate() {
+        return startDate;
+    }
+
+    public void setStartDate(LocalDate startDate) {
+        this.startDate = startDate;
+    }
+
+    public LocalDate getDeadline() {
+        return deadline;
+    }
+
+    public void setDeadline(LocalDate deadline) {
+        this.deadline = deadline;
+    }
+
+    public int getEta() {
+        return eta;
+    }
+
+    public void setEta(int eta) {
+        this.eta = eta;
+    }
+}

backend/src/main/java/core/entities/timemanager/Taskgroup.java

@@ -29,6 +29,9 @@ public class Taskgroup {
     @JoinColumn(name = "parent_id")
     private Taskgroup parent;
 
+    @OneToMany(mappedBy = "taskgroup", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
+    private Set<Task> tasks;
+
     public Taskgroup(String taskgroupName, User user) {
         this.taskgroupName = taskgroupName;
         this.user = user;

backend/src/main/java/core/repositories/timemanager/TaskRepository.java

@@ -0,0 +1,9 @@
+package core.repositories.timemanager;
+
+import core.entities.timemanager.Task;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface TaskRepository extends CrudRepository<Task, Long> {
+}

backend/src/main/java/core/services/TaskService.java

@@ -0,0 +1,15 @@
+package core.services;
+
+import core.repositories.timemanager.TaskRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class TaskService {
+
+    private final TaskRepository taskRepository;
+
+    public TaskService(@Autowired TaskRepository taskRepository) {
+        this.taskRepository = taskRepository;
+    }
+}