Hibernate Federated primary Key annotation configuration

On the internet to see a lot of methods, the results of use or there are some problems. Now, tidy up.

1. Primary KEY class

ImportJavax.persistence.Column; Public classUserroleuionpkImplementsjava.io.Serializable {/**     *      */    Private Static Final LongSerialversionuid = 1L; PrivateString userId; PrivateString Roleid; /*Public USERROLEUIONPK () {super ();        } public USERROLEUIONPK (string userId, String roleid) {This.userid = UserId;    This.roleid = Roleid; }*/@Column (Name= "USER_ID")     PublicString getUserId () {returnuserId; }     Public voidSetuserid (String userId) { This. UserId =userId; } @Column (Name= "role_id")     PublicString Getroleid () {returnRoleid; }     Public voidSetroleid (String roleid) { This. Roleid =Roleid; }    /*@Override public boolean equals (Object o) {if (o instanceof userroleuionpk) {                  USERROLEUIONPK key = (USERROLEUIONPK) o; if (This.getuserid (). Equals (Key.getuserid ()) && This.getroleid (). Equals (Key.getroleid ())) {RET                  Urn true;          }} return false; } @Override public int hashcode () {return This.roleId.hashCode () +this.userid.has          Hcode (); }  */}

Some on the web say that we have to rewrite equals and hashcode, with the structure of the parameter and the parameterless structure, but in fact, I commented it out in the project.

My side of the main focus is @column annotations, did not join the @colunm has been reported that the list of invalid issues.

Entity class

Importjavax.persistence.EmbeddedId;Importjavax.persistence.Entity;Importjavax.persistence.Table; @Entity @table (name= "Sys_user_role") Public classSysuserroleImplementsjava.io.Serializable {PrivateUSERROLEUIONPK UIONPK; @EmbeddedId PublicUSERROLEUIONPK getuionpk () {returnUIONPK; }     Public voidSETUIONPK (userroleuionpk uionpk) { This. UIONPK =UIONPK; }}

2. Primary KEY class

ImportJavax.persistence.Column; Public classUserroleuionpkImplementsjava.io.Serializable {/**     *      */    Private Static Final LongSerialversionuid = 1L; PrivateString userId; PrivateString Roleid; @Column (Name= "USER_ID")     PublicString getUserId () {returnuserId; }     Public voidSetuserid (String userId) { This. UserId =userId; } @Column (Name= "role_id")     PublicString Getroleid () {returnRoleid; }     Public voidSetroleid (String roleid) { This. Roleid =Roleid; }    }

Entity class

Importjavax.persistence.Entity;Importjavax.persistence.Id;ImportJavax.persistence.IdClass;Importjavax.persistence.Table; @Entity @table (name= "Sys_user_role") @IdClass (USERROLEUIONPK.class) Public classSysuserroleImplementsjava.io.Serializable {PrivateString userId; PrivateString Roleid; @Id PublicString getUserId () {returnuserId; }     Public voidSetuserid (String userId) { This. UserId =userId; } @Id PublicString Getroleid () {returnRoleid; }     Public voidSetroleid (String roleid) { This. Roleid =Roleid; }}

Hibernate Federated primary Key annotation configuration