code for Introduction to Project Jigsaw BAEL-603 (#1421)

core-java-9/compile-modules.sh

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+javac -d mods --module-source-path src/modules $(find src/modules -name "*.java")

core-java-9/compile-student-client.bat

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+javac --module-path mods -d mods/com.baeldung.student.client^
+ src/modules/com.baeldung.student.client/module-info.java^
+ src/modules/com.baeldung.student.client/com/baeldung/student/client/StudentClient.java

core-java-9/compile-student-model.bat

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+javac -d mods/com.baeldung.student.model src/modules/com.baeldung.student.model/module-info.java^
+	src/modules/com.baeldung.student.model/com/baeldung/student/model/Student.java

core-java-9/compile-student-service-dbimpl.bat

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+javac --module-path mods -d mods/com.baeldung.student.service.dbimpl^
+ src/modules/com.baeldung.student.service.dbimpl/module-info.java^
+ src/modules/com.baeldung.student.service.dbimpl/com/baeldung/student/service/dbimpl/StudentDbService.java

core-java-9/compile-student-service.bat

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+javac --module-path mods -d mods/com.baeldung.student.service^
+ src/modules/com.baeldung.student.service/module-info.java^
+ src/modules/com.baeldung.student.service/com/baeldung/student/service/StudentService.java

core-java-9/run-student-client.bat

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+java --module-path mods -m com.baeldung.student.client/com.baeldung.student.client.StudentClient

core-java-9/run-student-client.sh

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+java --module-path mods -m com.baeldung.student.client/com.baeldung.student.client.StudentClient

core-java-9/src/modules/com.baeldung.student.client/com/baeldung/student/client/StudentClient.java

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+package com.baeldung.student.client;
+
+import com.baeldung.student.service.StudentService;
+import com.baeldung.student.service.dbimpl.StudentDbService;
+import com.baeldung.student.model.Student;
+
+public class StudentClient{
+
+	public static void main(String[] args) {
+		StudentService service = new StudentDbService();
+		service.create(new Student());
+		service.read("17SS0001");
+		service.update(new Student());
+		service.delete("17SS0001");
+	}
+}

core-java-9/src/modules/com.baeldung.student.client/module-info.java

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+module com.baeldung.student.client{
+	requires com.baeldung.student.service.dbimpl;
+}

core-java-9/src/modules/com.baeldung.student.model/com/baeldung/student/model/Student.java

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+package com.baeldung.student.model;
+
+import java.util.Date;
+
+public class Student{
+	public String registrationId;
+	public String firstName;
+	public String lastName;
+	public Date dateOfBirth;
+	public String city;
+	public String country;
+}

core-java-9/src/modules/com.baeldung.student.model/module-info.java

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+module com.baeldung.student.model{
+	exports com.baeldung.student.model;
+}

core-java-9/src/modules/com.baeldung.student.service.dbimpl/com/baeldung/student/service/dbimpl/StudentDbService.java

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+package com.baeldung.student.service.dbimpl;
+
+import com.baeldung.student.service.StudentService;
+import com.baeldung.student.model.Student;
+
+public class StudentDbService implements StudentService{
+
+	public String create(Student student){
+		System.out.println("Creating student in DB...");
+		return student.registrationId;
+	}
+
+	public Student read(String registrationId){
+		System.out.println("Reading student from DB...");
+		return new Student();
+	}
+
+	public Student update(Student student){
+		System.out.println("Updating sutdent in DB...");
+		return student;
+	}
+
+	public String delete(String registrationId){
+		System.out.println("Deleteing sutdent in DB...");
+		return registrationId;
+	}
+}

core-java-9/src/modules/com.baeldung.student.service.dbimpl/module-info.java

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+module com.baeldung.student.service.dbimpl{
+	requires transitive com.baeldung.student.service;
+	exports com.baeldung.student.service.dbimpl;
+}

core-java-9/src/modules/com.baeldung.student.service/com/baeldung/student/service/StudentService.java

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+package com.baeldung.student.service;
+
+import com.baeldung.student.model.Student;
+
+public interface StudentService{
+
+	public String create(Student student);
+
+	public Student read(String registrationId);
+
+	public Student update(Student student);
+
+	public String delete(String registrationId);
+}

core-java-9/src/modules/com.baeldung.student.service/module-info.java

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+module com.baeldung.student.service{
+	requires transitive com.baeldung.student.model;
+	exports com.baeldung.student.service;
+}