这是我的JPA @Repository，在这里我们可以通过findByFullNameContaining(String query)获得list<Person>-通过在查询中只提供fullName的子字符串

@Repository
public interface PersonRepository extends CrudRepository<Person,String> {
    Optional<Person> findByFullName(String fullName);
    List<Person> findByDepartment(Department department);
    List<Person> findByFullNameContaining(String query);

}

类似地，我们是否可以通过提供ENUM的子字符串值来对ENUM值执行一些操作？如何执行？
例如：

public enum Department {
    NORTH,
    SOUTH,
    EAST,
    WEST
}

List<Person> findByDepartmentContaining(String query);
JPA @实体人员：

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

@Entity
@Table(name = "Person")
public class Person {

    @Id 
    @NotNull(message = "Mobile number is required")
    @Size(min = 10, max = 10, message = "Mobile no. must be 10 digits")
    @Column(name = "person_id", unique = true, length = 10)
    private String mobileNum;

    @Transient
    @NotNull(message = "Password is required")
    @Size(min = 1, message = "Password cannot be empty")
    private String password="****";

    @NotNull(message = "Name cannot be empty")
    @Size(min = 1, max = 255, message = "fullName must be 1-255 characters long")
    @Column(name = "full_name")
    private String fullName;

    @Column(name = "department")
    @Enumerated(EnumType.STRING)
    @NotNull(message = "Department must be specified")
    private Department department = Department.UNKNOWN;

    public Person() {
    }

    public Person(String mobileNum, String fullName, String password, Department department) {
        this.mobileNum = mobileNum;
        this.password = password;
        this.fullName = fullName;
        this.department = department;
    }

    public String getMobileNum() {
        return mobileNum;
    }

    public void setMobileNum(String mobileNum) {
        this.mobileNum = mobileNum;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getFullName() {
        return fullName;
    }

    public void setFullName(String fullName) {
        this.fullName = fullName;
    }

    public Department getDepartment() {
        return department;
    }

    public void setDepartment(Department department) {
        this.department = department;
    }

    @Override
    public String toString() {
        return "Person [fullName=" + fullName + ", mobileNum=" + mobileNum + ", password=" + password + ", department=" + department + "]";
    }

}