Merge pull request #12444 from etrandafir93/features/BAEL-5639-lombok_vs_records

BAEL-5639: added code samples for the article

core-java-modules/core-java-14/pom.xml

@@ -14,6 +14,15 @@
         <version>1.0.0-SNAPSHOT</version>
     </parent>
 
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.24</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <plugin>

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/ColorData.java

@@ -0,0 +1,18 @@
+package com.baeldung.java14.recordvslombok;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class ColorData {
+
+    private int red;
+    private int green;
+    private int blue;
+
+    public String getHexString() {
+        return String.format("#%02X%02X%02X", red, green, blue);
+    }
+
+}

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/ColorRecord.java

@@ -0,0 +1,8 @@
+package com.baeldung.java14.recordvslombok;
+
+public record ColorRecord(int red, int green, int blue) {
+
+    public String getHexString() {
+        return String.format("#%02X%02X%02X", red, green, blue);
+    }
+}

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/ColorValueObject.java

@@ -0,0 +1,17 @@
+package com.baeldung.java14.recordvslombok;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.Value;
+
+@Value
+@Getter(AccessLevel.NONE)
+public class ColorValueObject {
+    int red;
+    int green;
+    int blue;
+
+    public String getHexString() {
+        return String.format("#%02X%02X%02X", red, green, blue);
+    }
+}

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/MonochromeColor.java

@@ -0,0 +1,12 @@
+package com.baeldung.java14.recordvslombok;
+
+import lombok.Value;
+
+@Value
+public class MonochromeColor extends ColorData {
+
+    public MonochromeColor(int grayScale) {
+        super(grayScale, grayScale, grayScale);
+    }
+
+}

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/StudentBuilder.java

@@ -0,0 +1,17 @@
+package com.baeldung.java14.recordvslombok;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+@Builder
+public class StudentBuilder {
+    private String firstName;
+    private String lastName;
+    private Long studentId;
+    private String email;
+    private String phoneNumber;
+    private String address;
+    private String country;
+    private int age;
+}

core-java-modules/core-java-14/src/main/java/com/baeldung/java14/recordvslombok/StudentRecord.java

@@ -0,0 +1,4 @@
+package com.baeldung.java14.recordvslombok;
+
+public record StudentRecord(String firstName, String lastName, Long studentId, String email, String phoneNumber, String address, String country, int age) {
+}

core-java-modules/core-java-14/src/test/java/com/baeldung/java14/recordvslombok/RecordVsLombokUntTest.java

@@ -0,0 +1,43 @@
+package com.baeldung.java14.recordvslombok;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+
+public class RecordVsLombokUntTest {
+
+    @Test
+    public void givenAColorRecord_hexStringIsCorrect() {
+        var red = new ColorRecord(255, 0, 0);
+
+        assertThat(red.getHexString()).isEqualTo("#FF0000");
+    }
+
+    @Test
+    public void givenAColorValueObject_hexStringIsCorrect() {
+        var red = new ColorValueObject(255, 0, 0);
+
+        assertThat(red.getHexString()).isEqualTo("#FF0000");
+    }
+
+    @Test
+    public void givenRecordWithManyAttributes_firstNameShouldBeJohn() {
+        StudentRecord john = new StudentRecord("John", "Doe", null, "john@doe.com", null, null, "England", 20);
+
+        assertThat(john.firstName()).isEqualTo("John");
+    }
+
+    @Test
+    public void givenBuilderWithManyAttributes_firstNameShouldBeJohn() {
+        StudentBuilder john = StudentBuilder.builder()
+            .firstName("John")
+            .lastName("Doe")
+            .email("john@doe.com")
+            .country("England")
+            .age(20)
+            .build();
+
+        assertThat(john.getFirstName()).isEqualTo("John");
+    }
+
+}