Use ManyToMany

src/main/java/com/faforever/api/data/domain/HardwareInformation.java

@@ -8,21 +8,21 @@
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
-import javax.persistence.OneToMany;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
 import javax.persistence.Table;
 import javax.validation.constraints.NotNull;
 import javax.validation.constraints.Size;
-import java.io.Serializable;
 import java.util.List;
 
 @Entity
 @Include(rootLevel = true, type = "HardwareInformation")
 @Table(name = "uniqueid")
 @Setter
-// TODO: We need this interface, otherwise an exception occure ...
-public class HardwareInformation implements Serializable {
+public class HardwareInformation {
 
-  private Integer id;
+  private int legacyId;
   private String hash;
   private String uuid;
   private String memSerialNumber;
@@ -33,15 +33,16 @@ public class HardwareInformation implements Serializable {
   private String smbiosbiosVersion;
   private String serialNumber;
   private String volumeSerialNumber;
-  private List<HardwareProfile> hardwareProfiles;
+  private List<Player> players;
+
 
-  @Id
   @Column(name = "id")
   @GeneratedValue(strategy = GenerationType.IDENTITY)
-  public Integer getId() {
-    return id;
+  public Integer getLegacyId() {
+    return legacyId;
   }
 
+  @Id
   @Column(name = "hash")
   @Size(max = 32)
   @NotNull
@@ -103,9 +104,11 @@ public String getVolumeSerialNumber() {
     return volumeSerialNumber;
   }
 
-  // TODO: add cascading and orphans removal or disallow delete
-  @OneToMany(mappedBy = "hardwareInformation")
-  public List<HardwareProfile> getHardwareProfiles() {
-    return hardwareProfiles;
+  @ManyToMany
+  @JoinTable(name = "unique_id_users",
+    joinColumns = @JoinColumn(name = "uniqueid_hash", referencedColumnName = "hash"),
+    inverseJoinColumns = @JoinColumn(name = "user_id", referencedColumnName = "id"))
+  public List<Player> getPlayers() {
+    return this.players;
   }
 }

src/main/java/com/faforever/api/data/domain/Player.java

@@ -7,7 +7,7 @@
 
 import javax.persistence.Entity;
 import javax.persistence.FetchType;
-import javax.persistence.JoinColumn;
+import javax.persistence.ManyToMany;
 import javax.persistence.OneToMany;
 import javax.persistence.OneToOne;
 import javax.persistence.Table;
@@ -25,7 +25,7 @@ public class Player extends Login {
   private Ladder1v1Rating ladder1v1Rating;
   private GlobalRating globalRating;
   private List<ClanMembership> clanMemberships;
-  private HardwareProfile hardwareProfile;
+  private List<HardwareInformation> hardwareInformations;
 
   @OneToOne(mappedBy = "player", fetch = FetchType.LAZY)
   public Ladder1v1Rating getLadder1v1Rating() {
@@ -52,10 +52,9 @@ public Clan getClan() {
     return null;
   }
 
-  @OneToOne
-  @JoinColumn(name = "id")
-  private HardwareProfile getHardwareProfile() {
-    return this.hardwareProfile;
+  @ManyToMany(mappedBy = "players")
+  public List<HardwareInformation> getHardwareInformations() {
+    return this.hardwareInformations;
   }
 
   @Override