java - 如何为枚举实现 JSR-303

Question

我正在构建一个 Rest WS 并使用 JSR-303 BeanValidation 来验证请求元素，但有一个字段类型 Enum。

EmploymentType.java

public enum EmploymentType {
    EMPTY, FULL, PARTTIME, CONTRACT, CASUAL;

    public static EmploymentType getDefaultEnum() {
        return EMPTY;
    }
}

以及我用来实现此目的的类:

就业.java

public class Employment implements Serializable{

    private static final long serialVersionUID = 1L;

    @NotNull(message="employmentType does not accept null values")
    private EmploymentType employmentType;

    @Valid
    @NotNull(message="orgData does not accept null values")
    private OrgData orgData;

    public Employment() {
        employmentType = EmploymentType.getDefaultEnum();
        orgData = new OrgData();
    }

    public EmploymentType getEmploymentType() {
        return employmentType;
    }

    public void setEmploymentType(EmploymentType employmentType) {
        this.employmentType = employmentType;
    }

    public OrgData getOrgData() {
        return orgData;
    }

    public void setOrgData(OrgData orgData) {
        this.orgData = orgData;
    }
}

我开发的实现只能防止枚举成为空对象，有没有办法验证枚举的值仅在声明值的范围内？ (空职、全职、兼职、契约(Contract)、休闲)

Answer 1

我相信您必须验证 valueOf 或枚举的名称以下是验证发生的摘录

public class Employment implements Serializable {

@NotNull(message = "employmentType does not accept null values")
@Valid
private EmploymentType employmentType;

public EmploymentType getEmploymentType() {
    getEmploymentTypeOfEnum();
    return employmentType;
} 

@Pattern(regexp = "EMPTY|FULL")
private String getEmploymentTypeOfEnum(){ // you don't need it to be public
     return employmentType.name();
}
}