使用orm在数据库中创建或更改表

Question

我使用IntelliJ从数据库生成/映射表。

现在我想更新一个表的数据库，我想通过ORM（JPA）来完成。

我创建了实体类：

@Entity
@Table(name = "protocol", schema = "swprojekt")
public class ProtocolEntity {

    private int protocolId;
    private String name;
    private Date expires;
    private String description;
    private DocumentEntity document;

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "protocol_id", nullable = false)
    public int getProtocolId() {
        return protocolId;
    }

    public void setProtocolId(int protocolId) {
        this.protocolId = protocolId;
    }

    @Basic
    @Column(name = "name", nullable = false, length = 3000)
    public String getName() {
        return name;
    }

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

    @Basic
    @Column(name = "expires", nullable = false)
    public Date getExpires() {
        return expires;
    }

    public void setExpires(Date expires) {
        this.expires = expires;
    }

    @OneToOne(fetch=FetchType.LAZY)
    @JoinColumn(name="document")
    public DocumentEntity getDocument() {
        return document;
    }

    public void setDocument(DocumentEntity document) {
        this.document = document;
    }

    @Basic
    @Column(name = "description", nullable = false, length = 3000)
    public String getDescription() {
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof ProtocolEntity)) return false;

        ProtocolEntity that = (ProtocolEntity) o;

        if (getProtocolId() != that.getProtocolId()) return false;
        if (!getName().equals(that.getName())) return false;
        if (!getExpires().equals(that.getExpires())) return false;
        if (!getDescription().equals(that.getDescription())) return false;
        return getDocument().equals(that.getDocument());
    }

    @Override
    public int hashCode() {
        int result = getProtocolId();
        result = 31 * result + getName().hashCode();
        result = 31 * result + getExpires().hashCode();
        result = 31 * result + getDescription().hashCode();
        result = 31 * result + getDocument().hashCode();
        return result;
    }

然而，现在我不确定。如何强制ORM创建表？只运行应用程序不起作用。我必须制作/设置什么配置？