我有一个实体类，其中有两个具有一对多关系的Entity类。并且有一个根父实体，其ID变量正在被所有实体扩展。当我尝试保存MessagingEnablerCfg实体而不初始化它的成员变量（messagingProfiles和messagementSessions）时。它正在保存。但如果我将尝试初始化这些设置变量。保存或更新操作时抛出以下错误：
原因：java.sql.SQLException：字段'messagingProfiles_id'没有默认值
注意：：如果MessagingEnablerCfg实体中只有一个变量（messagingProfiles或essagingSessions），那么它将可以很好地保存或更新。 我觉得很奇怪，但现在对我来说是个大麻烦。
请找到下面的Entity类
@Entity
//@Indexed
@Proxy(lazy=false)
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class MessagingConfigEntity{
@Id
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid2")
private String id;
//@Override
public String getId() {
return id;
}
}
另一个实体类是：
@Entity
//@Indexed
@Proxy(lazy=false)
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonIgnoreProperties(ignoreUnknown=true)
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class MessagingEnablerCfg extends MessagingConfigEntity {
private String serviceName;
@OneToMany(cascade = { CascadeType.ALL}, orphanRemoval = true, fetch = FetchType.EAGER)
@JsonInclude(JsonInclude.Include.NON_EMPTY)
private Set<MessagingProfileCfg> messagingProfiles = new HashSet<>();
//@OneToMany(cascade = { CascadeType.ALL}, orphanRemoval = true, fetch = FetchType.EAGER)
@OneToMany(cascade = { CascadeType.ALL}, orphanRemoval = true, fetch = FetchType.EAGER)
@JsonInclude(JsonInclude.Include.NON_EMPTY)
private Set<MessagingSessionCfg> messagingSessions = new HashSet<>();
public MessagingEnablerCfg(){
}
public MessagingEnablerCfg(String service){
this.serviceName = service;
}
public String getServiceName() {
return serviceName;
}
public void setServiceName(String serviceName) {
this.serviceName = serviceName;
}
public Set<MessagingSessionCfg> getMessagingSessions() {
return messagingSessions;
}
public void setMessagingSessions(Set<MessagingSessionCfg> messagingSessions)
{
this.messagingSessions = messagingSessions;
}
public Set<MessagingProfileCfg> getMessagingProfiles() {
return messagingProfiles;
}
public void setMessagingProfiles(Set<MessagingProfileCfg> messagingProfiles)
{
this.messagingProfiles = messagingProfiles;
}
public void addSession(MessagingSessionCfg session){
messagingSessions.add(session);
}
public void addProfile(MessagingProfileCfg profile){
messagingProfiles.add(profile);
}
}
另一个儿童班是：
@Entity
//@Indexed
@Proxy(lazy = false)
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class MessagingSessionCfg extends MessagingConfigEntity{
private String sessionName;
private String provider;
public MessagingSessionCfg(){
}
public MessagingSessionCfg(String name,String provider){
this.sessionName = name;
this.provider = provider;
}
public String getSessionName() {
return sessionName;
}
public void setSessionName(String sessionName) {
this.sessionName = sessionName;
}
public String getProvider() {
return provider;
}
public void setProvider(String provider) {
this.provider = provider;
}
public String toString(){
return "sessionName:"+sessionName+" provider:"+provider;
}
}
最后一个子实体是：
@Entity
//@Indexed
@Proxy(lazy=false)
@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class MessagingProfileCfg extends MessagingConfigEntity {
private String profileId;
private String sourceAddress;
public MessagingProfileCfg(){
}
public MessagingProfileCfg(String profileId, String sourceAddress){
this.profileId = profileId;
this.sourceAddress = sourceAddress;
}
public String getProfileId() {
return profileId;
}
public void setProfileId(String profileId) {
this.profileId = profileId;
}
public String getSourceAddress() {
return sourceAddress;
}
public void setSourceAddress(String sourceAddress) {
this.sourceAddress = sourceAddress;
}
}