Question

我使用roo shell创建了一些带有测试的实体：

roo> entity jpa --class ~.model.Entity1 --testAutomatically --activeRecord
roo> entity jpa --class ~.model.Entity2 --testAutomatically --activeRecord
...
roo> entity jpa --class ~.model.EntityN --testAutomatically --activeRecord

然后，我开始在我的IDE（IntelliJ想法）中创建它们之间的关系，使用JPA注释（@NotNull @OneToOne，@ OneToMany等）。在此过程中，我一直在运行集成测试，验证数据库架构。突然，我的一个测试失败了java.lang.NullPointerException。我已经想通了，不知何故roo已经改变了先前生成的Roo_DataOnDemand方面，因此所有引用的实体都变为“null”-initized。

我可以进行Push-In重构并手动初始化所有引用实体，但这太慢了。 roo方面生成器发生了什么？我该如何解决这个问题，以便roo生成器正确初始化所有引用？

Answer 1

看起来Roo在“分组导入语句”方面存在问题，例如：

import javax.persistence.*

要解决此问题，只需展开实体内的星号即可。示例如下。

“越野车”实体：

...
import javax.persistence.*;
...


@RooJavaBean
@RooToString
@RooJpaActiveRecord
@RooEquals
@ValidAdvocateCount
public class Formation {

    @NotNull
    @ManyToOne
    private Acol registrationAcol;

    /**
     */
    @NotNull
    @OneToOne
    private Contacts contacts;

    /**
     */
    @OneToMany(cascade = CascadeType.ALL, mappedBy = "formation")
    private Set<Advocate> advocates = new HashSet<Advocate>();

}

该实体的自动生成方面无效（删除了无关的详细信息）：

    privileged aspect FormationDataOnDemand_Roo_DataOnDemand {

        declare @type: FormationDataOnDemand: @Component;

        private List<Formation> FormationDataOnDemand.data;

        public Formation FormationDataOnDemand.getNewTransientFormation(int index) {
            Formation obj = new Formation();
            setContacts(obj, index);
            setForm(obj, index);
            setName(obj, index);
            setRate(obj, index);
            setRegistrationAcol(obj, index);
            setResume(obj, index);
            setReviewDate(obj, index);
            setViews(obj, index);
            return obj;
        }

        public void FormationDataOnDemand.setContacts(Formation obj, int index) {
            Contacts contacts = null;
            obj.setContacts(contacts);
        }

        public void FormationDataOnDemand.setRegistrationAcol(Formation obj, int index) {
            Acol registrationAcol = null;
            obj.setRegistrationAcol(registrationAcol);
        }

    }

固定实体导入示例：

import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.OneToOne;
import javax.persistence.OneToMany;
import javax.persistence.ManyToOne;
import javax.persistence.CascadeType;
import javax.validation.constraints.NotNull;

在修复之后，这是一个有效的自动生成方面：

 privileged aspect FormationDataOnDemand_Roo_DataOnDemand {

        declare @type: FormationDataOnDemand: @Component;

        private List<Formation> FormationDataOnDemand.data;

        @Autowired
        ContactsDataOnDemand FormationDataOnDemand.contactsDataOnDemand;

        @Autowired
        AcolDataOnDemand FormationDataOnDemand.acolDataOnDemand;

        public Formation FormationDataOnDemand.getNewTransientFormation(int index) {
            Formation obj = new Formation();
            setContacts(obj, index);
            setForm(obj, index);
            setName(obj, index);
            setRate(obj, index);
            setRegistrationAcol(obj, index);
            setResume(obj, index);
            setReviewDate(obj, index);
            setViews(obj, index);
            return obj;
        }

        public void FormationDataOnDemand.setContacts(Formation obj, int index) {
            Contacts contacts = contactsDataOnDemand.getSpecificContacts(index);
            obj.setContacts(contacts);
        }

        public void FormationDataOnDemand.setRegistrationAcol(Formation obj, int index) {
            Acol registrationAcol = acolDataOnDemand.getRandomAcol();
            obj.setRegistrationAcol(registrationAcol);
        }

    }

Spring Roo 1.2.4：Roo_DataOnDemand方面不填充引用实体

1 个答案: