Java Community | Help. Code. Learn.•5mo ago

Spring Boot @Mapping gives no read accessor error

Hello! I'm trying to use @mapping to map a DTo from entities My Main DTO is

public class MainDto {
    private ProjectDTO project;
    private TaskDTO task;
}

public class MainDto {
    private ProjectDTO project;
    private TaskDTO task;
}

DTOs:

public class ProjectDTO {
    private UUID projectId;
    private Second second;
    private String name;
    private String desc;
}

public class ProjectDTO {
    private UUID projectId;
    private Second second;
    private String name;
    private String desc;
}

public class SecondDTO {
    private UUID secondId;
    private String name;
    private String desc;
}

public class SecondDTO {
    private UUID secondId;
    private String name;
    private String desc;
}

public class TaskDTO {
    private UUID taskId;
    private String taskName;
}

public class TaskDTO {
    private UUID taskId;
    private String taskName;
}

Entities:

@Entity
public class ProjectEntity {
    @Id
    @Column(name = "project_id")
    private UUID projectId;

    @Column(name = "second_id")
    private UUID secondId;

    .... etc
}

@Entity
public class ProjectEntity {
    @Id
    @Column(name = "project_id")
    private UUID projectId;

    @Column(name = "second_id")
    private UUID secondId;

    .... etc
}

@Entity
public class SecondEntity {
    @Id
    @Column(name = "second_id")
    private UUID secondId;

    .... etc
}

@Entity
public class SecondEntity {
    @Id
    @Column(name = "second_id")
    private UUID secondId;

    .... etc
}

@Entity
public class TaskEntity {
    ...
}

@Entity
public class TaskEntity {
    ...
}

On an other file i set ans use the entities on repos, then i want to return the MainDTO:

public class main {
    ProjectEntity projEntity = ...
    SecondEntity sENtity = ...
    TaskEntity tEntity = ...
        ....
}

public class main {
    ProjectEntity projEntity = ...
    SecondEntity sENtity = ...
    TaskEntity tEntity = ...
        ....
}

then i got problems on mapping them: - If in main i've: MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity); it returns correctly filled the ProjectDTO and TaskDTO, except for the ProjectDTO Second, that is null. - If i try

@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

works, it fill the Second, but the rest of projectDTO is empty (TaskDTO is filled). - If i try something like

@Mapping(target = "project", source = "projEntity")
@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

@Mapping(target = "project", source = "projEntity")
@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

@Mapping(target = "project.description", source = "projEntity")
@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

@Mapping(target = "project.description", source = "projEntity")
@Mapping(target = "project.second", source = "sEntity")
MainDTO mDTO(ProjectEntity projEntity, SecondEntity sEntity, TaskEntity tEntity);

it gives the error: java: no read accessor for property "project" in tagret type Someone has tips for this? THank you so much

3 Replies

JavaBot•5mo ago

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Unknown User•5mo ago

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JavaBot•5mo ago

💤 Post marked as dormant

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Spring Boot @Mapping gives no read accessor error