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Lombok SuperBuilder 

Issue: BAEL-2561
This commit is contained in:
Dave Crane 2019-01-31 12:48:35 +00:00 committed by Josh Cummings
parent 4d1c8634fa
commit 56a832273e
9 changed files with 186 additions and 18 deletions
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2
lombok/src/main/java/com/baeldung/lombok/builder/Child.java → lombok/src/main/java/com/baeldung/lombok/builder/inheritance/buildermethodname/Child.java
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@ -1,4 +1,4 @@
package com.baeldung.lombok.builder;
package com.baeldung.lombok.builder.inheritance.buildermethodname;
import lombok.Builder;
import lombok.Getter;

2
lombok/src/main/java/com/baeldung/lombok/builder/Parent.java → lombok/src/main/java/com/baeldung/lombok/builder/inheritance/buildermethodname/Parent.java
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@ -1,4 +1,4 @@
package com.baeldung.lombok.builder;
package com.baeldung.lombok.builder.inheritance.buildermethodname;
import lombok.Builder;
import lombok.Getter;

16
lombok/src/main/java/com/baeldung/lombok/builder/inheritance/buildermethodname/Student.java Normal file
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@ -0,0 +1,16 @@
package com.baeldung.lombok.builder.inheritance.buildermethodname;
import lombok.Builder;
import lombok.Getter;
@Getter
public class Student extends Child {
private final String schoolName;
@Builder(builderMethodName = "studentBuilder")
public Student(String parentName, int parentAge, String childName, int childAge, String schoolName) {
super(parentName, parentAge, childName, childAge);
this.schoolName = schoolName;
}
}

11
lombok/src/main/java/com/baeldung/lombok/builder/inheritance/superbuilder/Child.java Normal file
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@ -0,0 +1,11 @@
package com.baeldung.lombok.builder.inheritance.superbuilder;
import lombok.Getter;
import lombok.experimental.SuperBuilder;
@Getter
@SuperBuilder(toBuilder = true)
public class Child extends Parent {
private final String childName;
private final int childAge;
}

11
lombok/src/main/java/com/baeldung/lombok/builder/inheritance/superbuilder/Parent.java Normal file
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@ -0,0 +1,11 @@
package com.baeldung.lombok.builder.inheritance.superbuilder;
import lombok.Getter;
import lombok.experimental.SuperBuilder;
@Getter
@SuperBuilder(toBuilder = true)
public class Parent {
private final String parentName;
private final int parentAge;
}

10
lombok/src/main/java/com/baeldung/lombok/builder/inheritance/superbuilder/Student.java Normal file
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@ -0,0 +1,10 @@
package com.baeldung.lombok.builder.inheritance.superbuilder;
import lombok.Getter;
import lombok.experimental.SuperBuilder;
@Getter
@SuperBuilder(toBuilder = true)
public class Student extends Child {
private final String schoolName;
}

16
lombok/src/test/java/com/baeldung/lombok/builder/BuilderUnitTest.java
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@ -40,20 +40,4 @@ public class BuilderUnitTest {
assertThat(testImmutableClient.getName()).isEqualTo("foo");
assertThat(testImmutableClient.getId()).isEqualTo(1);
}
@Test
public void givenBuilderAtMethodLevel_ChildInheritingParentIsBuilt() {
Child child = Child.childBuilder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.build();
assertThat(child.getChildName()).isEqualTo("Emma");
assertThat(child.getChildAge()).isEqualTo(6);
assertThat(child.getParentName()).isEqualTo("Andrea");
assertThat(child.getParentAge()).isEqualTo(38);
}
}

40
lombok/src/test/java/com/baeldung/lombok/builder/inheritance/buildermethodname/BuilderInheritanceUsingMethodNameUnitTest.java Normal file
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@ -0,0 +1,40 @@
package com.baeldung.lombok.builder.inheritance.buildermethodname;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.jupiter.api.Test;
public class BuilderInheritanceUsingMethodNameUnitTest {
@Test
public void givenBuilderAtMethodLevel_ChildInheritingParentIsBuilt() {
Child child = Child.childBuilder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.build();
assertThat(child.getChildName()).isEqualTo("Emma");
assertThat(child.getChildAge()).isEqualTo(6);
assertThat(child.getParentName()).isEqualTo("Andrea");
assertThat(child.getParentAge()).isEqualTo(38);
}
@Test
public void givenSuperBuilderOnAllThreeLevels_StudentInheritingChildAndParentIsBuilt() {
Student student = Student.studentBuilder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.schoolName("Baeldung High School")
.build();
assertThat(student.getChildName()).isEqualTo("Emma");
assertThat(student.getChildAge()).isEqualTo(6);
assertThat(student.getParentName()).isEqualTo("Andrea");
assertThat(student.getParentAge()).isEqualTo(38);
assertThat(student.getSchoolName()).isEqualTo("Baeldung High School");
}
}

96
lombok/src/test/java/com/baeldung/lombok/builder/inheritance/superbuilder/BuilderInheritanceUsingSuperBuilderUnitTest.java Normal file
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@ -0,0 +1,96 @@
package com.baeldung.lombok.builder.inheritance.superbuilder;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.jupiter.api.Test;
public class BuilderInheritanceUsingSuperBuilderUnitTest {
@Test
public void givenSuperBuilderOnParentAndOnChild_ChildInheritingParentIsBuilt() {
Child child = Child.builder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.build();
assertThat(child.getChildName()).isEqualTo("Emma");
assertThat(child.getChildAge()).isEqualTo(6);
assertThat(child.getParentName()).isEqualTo("Andrea");
assertThat(child.getParentAge()).isEqualTo(38);
}
@Test
public void givenSuperBuilderOnParent_StandardBuilderIsBuilt() {
Parent parent = Parent.builder()
.parentName("Andrea")
.parentAge(38)
.build();
assertThat(parent.getParentName()).isEqualTo("Andrea");
assertThat(parent.getParentAge()).isEqualTo(38);
}
@Test
public void givenToBuilderIsSetToTrueOnParentAndChild_DeepCopyViaBuilderIsPossible() {
Child child1 = Child.builder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.build();
Child child2 = child1.toBuilder()
.childName("Anna")
.build();
assertThat(child2.getChildName()).isEqualTo("Anna");
assertThat(child2.getChildAge()).isEqualTo(6);
assertThat(child2.getParentName()).isEqualTo("Andrea");
assertThat(child2.getParentAge()).isEqualTo(38);
}
@Test
public void givenSuperBuilderOnAllThreeLevels_StudentInheritingChildAndParentIsBuilt() {
Student student = Student.builder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.schoolName("Baeldung High School")
.build();
assertThat(student.getChildName()).isEqualTo("Emma");
assertThat(student.getChildAge()).isEqualTo(6);
assertThat(student.getParentName()).isEqualTo("Andrea");
assertThat(student.getParentAge()).isEqualTo(38);
assertThat(student.getSchoolName()).isEqualTo("Baeldung High School");
}
@Test
public void givenToBuilderIsSetToTrueOnParentChildAndStudent_DeepCopyViaBuilderIsPossible() {
Student student1 = Student.builder()
.parentName("Andrea")
.parentAge(38)
.childName("Emma")
.childAge(6)
.schoolName("School 1")
.build();
Student student2 = student1.toBuilder()
.childName("Anna")
.schoolName("School 2")
.build();
assertThat(student2.getChildName()).isEqualTo("Anna");
assertThat(student2.getChildAge()).isEqualTo(6);
assertThat(student2.getParentName()).isEqualTo("Andrea");
assertThat(student2.getParentAge()).isEqualTo(38);
assertThat(student2.getSchoolName()).isEqualTo("School 2");
}
}