added code for mapstruct tutorial

mapstruct/src/main/java/org/baeldung/dto/EmployeeDTO.java

@@ -5,6 +5,7 @@ public class EmployeeDTO {
     private int employeeId;
     private String employeeName;
     private DivisionDTO division;
+    private String employeeStartDt;
 
     public int getEmployeeId() {
         return employeeId;
@@ -30,4 +31,12 @@ public class EmployeeDTO {
         this.division = division;
     }
 
+    public String getEmployeeStartDt() {
+        return employeeStartDt;
+    }
+
+    public void setEmployeeStartDt(String employeeStartDt) {
+        this.employeeStartDt = employeeStartDt;
+    }
+
 }

mapstruct/src/main/java/org/baeldung/entity/Employee.java

@@ -1,10 +1,13 @@
 package org.baeldung.entity;
 
+import java.util.Date;
+
 public class Employee {
 
     private int id;
     private String name;
     private Division division;
+    private Date startDt;
 
     public int getId() {
         return id;
@@ -30,4 +33,12 @@ public class Employee {
         this.division = division;
     }
 
+    public Date getStartDt() {
+        return startDt;
+    }
+
+    public void setStartDt(Date startDt) {
+        this.startDt = startDt;
+    }
+
 }

mapstruct/src/main/java/org/baeldung/mapper/EmployeeMapper.java

@@ -1,5 +1,7 @@
 package org.baeldung.mapper;
 
+import java.util.List;
+
 import org.baeldung.dto.DivisionDTO;
 import org.baeldung.dto.EmployeeDTO;
 import org.baeldung.entity.Division;
@@ -11,14 +13,22 @@ import org.mapstruct.Mappings;
 @Mapper
 public interface EmployeeMapper {
 
-    @Mappings({ @Mapping(target = "employeeId", source = "entity.id"), @Mapping(target = "employeeName", source = "entity.name") })
+    @Mappings({ @Mapping(target = "employeeId", source = "entity.id"), 
+                @Mapping(target = "employeeName", source = "entity.name"),
+                @Mapping(target = "employeeStartDt",source = "entity.startDt", dateFormat = "dd-MM-yyyy HH:mm:ss")})
     EmployeeDTO employeeToEmployeeDTO(Employee entity);
 
-    @Mappings({ @Mapping(target = "id", source = "dto.employeeId"), @Mapping(target = "name", source = "dto.employeeName") })
+    @Mappings({ @Mapping(target = "id", source = "dto.employeeId"), 
+                @Mapping(target = "name", source = "dto.employeeName"),
+                @Mapping(target = "startDt",source = "dto.employeeStartDt", dateFormat = "dd-MM-yyyy HH:mm:ss")})
     Employee employeeDTOtoEmployee(EmployeeDTO dto);
 
     DivisionDTO divisionToDivisionDTO(Division entity);
 
     Division divisionDTOtoDivision(DivisionDTO dto);
 
+    List<Employee> convertEmployeeDTOListToEmployeeList(List<EmployeeDTO> list);
+
+    List<EmployeeDTO> convertEmployeeListToEmployeeDTOList(List<Employee> list);
+
 }

mapstruct/src/main/java/org/baeldung/mapper/SimpleSourceDestinationMapper.java

@@ -4,7 +4,7 @@ import org.baeldung.dto.SimpleSource;
 import org.baeldung.entity.SimpleDestination;
 import org.mapstruct.Mapper;
 
-@Mapper
+@Mapper(componentModel = "spring")
 public interface SimpleSourceDestinationMapper {
 
     SimpleDestination sourceToDestination(SimpleSource source);

mapstruct/src/main/java/org/baeldung/mapper/SimpleSourceDestinationSpringMapper.java

@@ -1,14 +0,0 @@
-package org.baeldung.mapper;
-
-import org.baeldung.dto.SimpleSource;
-import org.baeldung.entity.SimpleDestination;
-import org.mapstruct.Mapper;
-
-@Mapper(componentModel = "spring")
-public interface SimpleSourceDestinationSpringMapper {
-
-    SimpleDestination sourceToDestination(SimpleSource source);
-
-    SimpleSource destinationToSource(SimpleDestination destination);
-
-}