adding implementation

src/main/java/io/zipcoder/persistenceapp/department/Department.java

@@ -0,0 +1,51 @@
+package io.zipcoder.persistenceapp.department;
+
+import io.zipcoder.persistenceapp.employee.Employee;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Department {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long depId;
+    private String depName;
+    private Employee depManager;
+
+    public Department() {
+    }
+
+    public Department(Long depId, String depName, Employee depManager) {
+        this.depId = depId;
+        this.depName = depName;
+        this.depManager = depManager;
+    }
+
+    public Long getDepId() {
+        return depId;
+    }
+
+    public void setDepId(Long depId) {
+        this.depId = depId;
+    }
+
+    public String getDepName() {
+        return depName;
+    }
+
+    public void setDepName(String depName) {
+        this.depName = depName;
+    }
+
+    public Employee getDepManager() {
+        return depManager;
+    }
+
+    public void setDepManager(Employee depManager) {
+        this.depManager = depManager;
+    }
+}

src/main/java/io/zipcoder/persistenceapp/department/DepartmentController.java

@@ -0,0 +1,45 @@
+package io.zipcoder.persistenceapp.department;
+
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping(value = "/dep")
+public class DepartmentController {
+
+    @Autowired
+    DepartmentService service;
+
+    @PostMapping("/dept/create")
+    public ResponseEntity<Department> create(
+            @RequestBody Department department) {
+        return new ResponseEntity<>(service.create(department), HttpStatus.CREATED);
+    }
+
+    @GetMapping("/dept/{id}")
+    public ResponseEntity<Department> findById(
+            @PathVariable Long id) {
+        return new ResponseEntity<>(service.read(id), HttpStatus.OK);
+    }
+
+    @GetMapping("/dept/depts")
+    public ResponseEntity<Iterable<Department>> findAll() {
+        return new ResponseEntity<>(service.readAll(), HttpStatus.OK);
+    }
+
+    @PutMapping("/dept/update/{id}")
+    public ResponseEntity<Department> update(
+            @PathVariable Long id,
+            @RequestBody Department department) {
+        return new ResponseEntity<>(service.updateManager(id, department), HttpStatus.OK);
+    }
+
+    @DeleteMapping("/dept/delete/{id}")
+    public ResponseEntity<Department> delete(
+            @PathVariable Long id) {
+        return new ResponseEntity<>(service.delete(id), HttpStatus.OK);
+    }
+}

src/main/java/io/zipcoder/persistenceapp/department/DepartmentRepo.java

@@ -0,0 +1,8 @@
+package io.zipcoder.persistenceapp.department;
+
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface DepartmentRepo extends CrudRepository<Department, Long> {
+}

src/main/java/io/zipcoder/persistenceapp/department/DepartmentService.java

@@ -0,0 +1,54 @@
+package io.zipcoder.persistenceapp.department;
+
+
+import io.zipcoder.persistenceapp.employee.Employee;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class DepartmentService {
+
+    @Autowired
+    private DepartmentRepo repo;
+
+    public Department create(Department dep) {
+        return repo.save(dep);
+    }
+
+    public Department read(Long id) {
+        return repo.findOne(id);
+    }
+
+    public List<Department> readAll() {
+        Iterable<Department> departmentIterable = repo.findAll();
+        List<Department> depList = new ArrayList<>();
+        departmentIterable.forEach(depList::add);
+        return depList;
+    }
+
+    // could integrate passing an Employee through name to update manager
+    public Department updateManager(Long id, Department department) {
+        Department inDb = read(id);
+        inDb.setDepManager(department.getDepManager());
+        inDb = repo.save(inDb);
+        return inDb;
+    }
+
+    public Department delete(Long id) {
+        Department dep = read(id);
+        repo.delete(dep);
+        return dep;
+    }
+
+    public Department delete(Department dep) {
+        return delete(dep.getDepId());
+    }
+
+    public List<Department> delete(List<Department> listToDelete) {
+        listToDelete.forEach(repo::delete);
+        return listToDelete;
+    }
+}

src/main/java/io/zipcoder/persistenceapp/employee/Employee.java

@@ -0,0 +1,120 @@
+package io.zipcoder.persistenceapp.employee;
+
+import org.springframework.web.bind.annotation.PathVariable;
+
+import javax.persistence.*;
+import java.util.Date;
+
+@Entity
+public class Employee {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long employeeNum;
+    private String firstName;
+    private String lastName;
+    private String title;
+    private String phoneNumber;
+    private String email;
+    private Date hireDate;
+    @OneToOne(cascade = CascadeType.ALL)
+    @JoinColumn(name = "manager_id", referencedColumnName = "id")
+    private Employee manager;
+//    private Integer depNum;
+
+    public Employee() {
+    }
+
+    public Employee(Long employeeNum,
+                    String firstName,
+                    String lastName,
+                    String title,
+                    String phoneNumber,
+                    String email,
+                    Date hireDate,
+                    Employee manager
+//                    Integer depNum
+                    ) {
+        this.employeeNum = employeeNum;
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.title = title;
+        this.phoneNumber = phoneNumber;
+        this.email = email;
+        this.hireDate = hireDate;
+        this.manager = manager;
+//        this.depNum = depNum;
+    }
+
+    public Long getEmployeeNum() {
+        return employeeNum;
+    }
+
+    public void setEmployeeNum(Long employeeNum) {
+        this.employeeNum = employeeNum;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getPhoneNumber() {
+        return phoneNumber;
+    }
+
+    public void setPhoneNumber(String phoneNumber) {
+        this.phoneNumber = phoneNumber;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Date getHireDate() {
+        return hireDate;
+    }
+
+    public void setHireDate(Date hireDate) {
+        this.hireDate = hireDate;
+    }
+
+    public Employee getManager() {
+        return manager;
+    }
+
+    public void setManager(Employee manager) {
+        this.manager = manager;
+    }
+
+//    public Integer getDepNum() {
+//        return depNum;
+//    }
+//
+//    public void setDepNum(Integer depNum) {
+//        this.depNum = depNum;
+//    }
+}

src/main/java/io/zipcoder/persistenceapp/employee/EmployeeController.java

@@ -0,0 +1,46 @@
+package io.zipcoder.persistenceapp.employee;
+
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping
+public class EmployeeController {
+
+    @Autowired
+    EmployeeService service;
+
+    @PostMapping("/employee/create")
+    public ResponseEntity<Employee> create(
+            @RequestBody Employee employee) {
+        return new ResponseEntity<>(service.create(employee), HttpStatus.CREATED);
+    }
+
+    @GetMapping("/employee/{id}")
+    public ResponseEntity<Employee> findById(
+            @PathVariable Long id) {
+        return new ResponseEntity<>(service.read(id), HttpStatus.OK);
+    }
+
+    @GetMapping("/employee/employees")
+    public ResponseEntity<Iterable<Employee>> findAll() {
+        return new ResponseEntity<>(service.readAll(), HttpStatus.OK);
+    }
+
+    @PutMapping("/employee/update/{id}")
+    public ResponseEntity<Employee> updateFields(
+            @PathVariable Long id,
+            @RequestBody Employee employee) {
+        return new ResponseEntity<>(service.updateFields(id, employee), HttpStatus.OK);
+    }
+
+    @DeleteMapping("/employee/delete/{id}")
+    public ResponseEntity<Employee> delete(
+            @PathVariable Long id) {
+        return new ResponseEntity<>(service.delete(id), HttpStatus.OK);
+    }
+
+}

src/main/java/io/zipcoder/persistenceapp/employee/EmployeeRepo.java

@@ -0,0 +1,9 @@
+package io.zipcoder.persistenceapp.employee;
+
+
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface EmployeeRepo extends CrudRepository<Employee, Long> {
+}