java - Olingo 2.0.6 JPA扩展:无法将EdmComplexTypeImplProv强制转换为EdmSimpleType

使用JPA扩展程序扫描包含@Embedded对象的实体时，可以使用ComplexTypes正确创建$ metadata。但是，在检索实体时，我收到ClassCastException：


  org.apache.olingo.odata2.core.edm.provider.EdmComplexTypeImplProv
  无法转换为org.apache.olingo.odata2.api.edm.EdmSimpleType
  
  类：
  org.apache.olingo.odata2.jpa.processor.core.access.data.JPAEntityParse


这是我正在使用的实体代码：

@Entity
public class BORROWER {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @Embedded
    protected BORROWER_DETAIL borrower_DETAIL;



    @Embedded
    protected NAME name;


    @ManyToOne
    protected DEAL deal;


    //Mark transient to force orika to skip
    @Transient
    public DEAL getDeal() {
        return deal;
    }

    public void setDeal(DEAL deal) {
        this.deal = deal;
    }

    /**
     * Gets the value of the borrower_DETAIL property.
     *
     * @return
     *     possible object is
     *
     *
     */
    public BORROWER_DETAIL getBORROWER_DETAIL() {
        return borrower_DETAIL;
    }

    /**
     * Sets the value of the borrower_DETAIL property.
     *
     * @param value
     *     allowed object is
     *
     *
     */
    public void setBORROWER_DETAIL(BORROWER_DETAIL value) {
        this.borrower_DETAIL = value;
    }

    public NAME getName() {
        return name;
    }

    public void setName(NAME name) {
        this.name = name;
    }

    public long getId() {
        return id;
    }
}

最佳答案

看到有关此getter / setter的评论是此bug票证上问题的根源（我也借用了部分问题写作）：

https://issues.apache.org/jira/browse/OLINGO-948

我更新了border_DETAIL的getter和setter方法签名，而我不再遇到该错误。这是为我工作的更新的实体代码：

@Entity
public class BORROWER {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long id;

    @Embedded
    protected BORROWER_DETAIL borrower_DETAIL;



    @Embedded
    protected NAME name;


    @ManyToOne
    protected DEAL deal;


    //Mark transient to force orika to skip
    @Transient
    public DEAL getDeal() {
        return deal;
    }

    public void setDeal(DEAL deal) {
        this.deal = deal;
    }

    public BORROWER_DETAIL getBorrower_DETAIL() {
        return borrower_DETAIL;
    }

    public void setBorrower_DETAIL(BORROWER_DETAIL borrower_DETAIL) {
        this.borrower_DETAIL = borrower_DETAIL;
    }

    public NAME getName() {
        return name;
    }

    public void setName(NAME name) {
        this.name = name;
    }

    public long getId() {
        return id;
    }

    public void setId(long id) {
        this.id = id;
    }
}

关于java - Olingo 2.0.6 JPA扩展:无法将EdmComplexTypeImplProv强制转换为EdmSimpleType，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56708154/