add StudentMappingEntity

src/main/java/de/unistuttgart/iste/meitrex/assignment_service/persistence/entity/StudentMappingEntity.java

@@ -0,0 +1,42 @@
+package de.unistuttgart.iste.meitrex.assignment_service.persistence.entity;
+
+import de.unistuttgart.iste.meitrex.common.persistence.IWithId;
+import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.UUID;
+
+@Entity(name = "StudentMapping")
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class StudentMappingEntity implements IWithId<StudentMappingEntity.StudentMappingKey>{
+
+    // extra short constructor
+    public StudentMappingEntity(final UUID meitrexStudentId, final String externalStudentId) {
+        studentMappingKey = new StudentMappingKey(meitrexStudentId, externalStudentId);
+    }
+
+    @EmbeddedId
+    private StudentMappingKey studentMappingKey;
+
+    @Data
+    @Embeddable
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class StudentMappingKey implements Serializable {
+        private UUID meitrexStudentId;
+        private String externalStudentId;
+    }
+
+    @Override
+    public StudentMappingKey getId() {
+        return studentMappingKey;
+    }
+
+}

src/main/java/de/unistuttgart/iste/meitrex/assignment_service/persistence/repository/StudentMappingRepository.java

@@ -0,0 +1,10 @@
+package de.unistuttgart.iste.meitrex.assignment_service.persistence.repository;
+
+import de.unistuttgart.iste.meitrex.assignment_service.persistence.entity.StudentMappingEntity;
+import de.unistuttgart.iste.meitrex.common.persistence.MeitrexRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface StudentMappingRepository extends MeitrexRepository<StudentMappingEntity, StudentMappingEntity.StudentMappingKey> {
+
+}

src/main/resources/graphql/service/grading.graphqls

@@ -65,4 +65,16 @@ type SubexerciseGrading {
     The absolute number of achieved credits on the subexercise.
     """
     achievedCredits: Float!
+}
+
+type StudentMapping {
+    """
+    Student Id in Meitrex
+    """
+    meitrexStudentId: UUID!
+
+    """
+    Student Id in external system like TMS
+    """
+    externalStudentId: String!
 }