BAEL-9154

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/Mapper/PersonFactory.java

@@ -0,0 +1,13 @@
+package com.example.Mapper;
+
+import com.example.entity.Customer;
+import com.example.entity.Employee;
+
+public class PersonFactory {
+
+        public Employee createEmployee() { return new Employee(); }
+        public Customer createCustomer() { return new Customer(); }
+    }
+
+
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/Mapper/PersonMapperFactory.java

@@ -0,0 +1,24 @@
+package com.example.Mapper;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.factory.Mappers;
+
+import com.example.dto.PersonDTO;
+import com.example.entity.Customer;
+import com.example.entity.Employee;
+
+@Mapper(componentModel = "default", uses = PersonFactory.class)
+public interface PersonMapperFactory {
+    PersonMapperFactory INSTANCE = Mappers.getMapper(PersonMapperFactory.class);
+
+    @Mapping(target = "department", source = "department")
+    @Mapping(target = "salary", source = "salary")
+    Employee toEmployee(PersonDTO dto);
+
+    @Mapping(target = "customerId", source = "customerId")
+    @Mapping(target = "tier", source = "tier")
+    Customer toCustomer(PersonDTO dto);
+}
+
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/Mapper/PersonMapperInlineFactory.java

@@ -0,0 +1,26 @@
+package com.example.Mapper;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.ObjectFactory;
+import org.mapstruct.factory.Mappers;
+
+import com.example.dto.PersonDTO;
+import com.example.entity.Customer;
+import com.example.entity.Employee;
+import com.example.entity.Person;
+
+@Mapper
+public interface PersonMapperInlineFactory {
+    PersonMapperInlineFactory INSTANCE = Mappers.getMapper(PersonMapperInlineFactory.class);
+
+   Person toPerson(PersonDTO dto);
+
+    @ObjectFactory
+    default Person createPerson(PersonDTO dto) {
+        if ("employee".equalsIgnoreCase(dto.getType())) return new Employee();
+        else if ("customer".equalsIgnoreCase(dto.getType())) return new Customer();
+        throw new IllegalArgumentException("Unknown type: " + dto.getType());
+    }
+}
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/dto/PersonDTO.java

@@ -0,0 +1,43 @@
+package com.example.dto;
+
+public class PersonDTO {
+    private String name;
+    private int age;
+
+    // Employee-specific
+    private String department;
+    private double salary;
+
+    // Customer-specific
+    private String customerId;
+    private String tier;
+
+    // Type to decide subclass: "employee" or "customer"
+    private String type;
+
+    // Getters and Setters
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+
+    public int getAge() { return age; }
+    public void setAge(int age) { this.age = age; }
+
+    public String getDepartment() { return department; }
+    public void setDepartment(String department) { this.department = department; }
+
+    public double getSalary() { return salary; }
+    public void setSalary(double salary) { this.salary = salary; }
+
+    public String getCustomerId() { return customerId; }
+    public void setCustomerId(String customerId) { this.customerId = customerId; }
+
+    public String getTier() { return tier; }
+    public void setTier(String tier) { this.tier = tier; }
+
+    public String getType() { return type; }
+    public void setType(String type) { this.type = type; }
+}
+
+
+
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/entity/Customer.java

@@ -0,0 +1,19 @@
+package com.example.entity;
+
+public class Customer extends Person {
+    private String customerId;
+    private String tier;
+
+    public Customer() {}
+    public Customer(String name, int age, String customerId, String tier) {
+        super(name, age);
+        this.customerId = customerId;
+        this.tier = tier;
+    }
+
+    public String getCustomerId() { return customerId; }
+    public void setCustomerId(String customerId) { this.customerId = customerId; }
+    public String getTier() { return tier; }
+    public void setTier(String tier) { this.tier = tier; }
+}
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/entity/Employee.java

@@ -0,0 +1,20 @@
+package com.example.entity;
+
+public class Employee extends Person {
+    private String department;
+    private double salary;
+
+    public Employee() {}
+    public Employee(String name, int age, String department, double salary) {
+        super(name, age);
+        this.department = department;
+        this.salary = salary;
+    }
+
+    public String getDepartment() { return department; }
+    public void setDepartment(String department) { this.department = department; }
+    public double getSalary() { return salary; }
+    public void setSalary(double salary) { this.salary = salary; }
+}
+
+

mapstruct-3/src/main/java/com/baeldung/mappingAbstractClass/entity/Person.java

@@ -0,0 +1,21 @@
+package com.example.entity;
+
+public abstract class Person {
+
+    private String name;
+    private int age;
+
+    public Person() {}
+
+    public Person(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+    public int getAge() { return age; }
+    public void setAge(int age) { this.age = age; }
+
+
+}