JPA entities -- org.hibernate.TypeMismatchException

[Shane Lee]

Environment:
JDK 1.6, JEE5
Hibernate Core 3.3.1.GA, Hibernate Annotations 3.4.0.GA
DB:Informix

Used reverse engineering to create my persistence entities from db schema [NB:This is a schema in work i cannot change]

Getting exception when selecting list of basic_auth_accounts org.hibernate.TypeMismatchException: Provided id of the wrong type for class ebusiness.weblogic.model.UserAccounts. Expected: class ebusiness.weblogic.model.UserAccountsId, got class ebusiness.weblogic.model.BasicAuthAccountsId

Both basic_auth_accounts and user_accounts have composite primary keys and one-to-one relationships.
Main Code for classes are:

/**
 * BasicAuthAccounts generated by hbm2java
 */
@Entity
@Table(name = "basic_auth_accounts", schema = "ebusdevt", catalog = "ebusiness_dev", uniqueConstraints = @UniqueConstraint(columnNames = {
        "realm_type_id", "realm_qualifier", "account_name" }))
public class BasicAuthAccounts implements java.io.Serializable {
 
    private BasicAuthAccountsId id;
    private UserAccounts userAccounts;
    private String accountName;
    private String hashedPassword;
    private boolean passwdChangeReqd;
    private String hashMethodId;
    private int failedAttemptNo;
    private Date failedAttemptDate;
    private Date lastAccess;
 
    public BasicAuthAccounts() {
    }
 
    public BasicAuthAccounts(UserAccounts userAccounts, String accountName, String hashedPassword,
            boolean passwdChangeReqd, String hashMethodId, int failedAttemptNo) {
        this.userAccounts = userAccounts;
        this.accountName = accountName;
        this.hashedPassword = hashedPassword;
        this.passwdChangeReqd = passwdChangeReqd;
        this.hashMethodId = hashMethodId;
        this.failedAttemptNo = failedAttemptNo;
    }
 
    public BasicAuthAccounts(UserAccounts userAccounts, String accountName, String hashedPassword,
            boolean passwdChangeReqd, String hashMethodId, int failedAttemptNo,
            Date failedAttemptDate, Date lastAccess) {
        this.userAccounts = userAccounts;
        this.accountName = accountName;
        this.hashedPassword = hashedPassword;
        this.passwdChangeReqd = passwdChangeReqd;
        this.hashMethodId = hashMethodId;
        this.failedAttemptNo = failedAttemptNo;
        this.failedAttemptDate = failedAttemptDate;
        this.lastAccess = lastAccess;
    }
 
    @EmbeddedId
    @AttributeOverrides( {
            @AttributeOverride(name = "realmTypeId", column = @Column(name = "realm_type_id", nullable = false, length = 32)),
            @AttributeOverride(name = "realmQualifier", column = @Column(name = "realm_qualifier", nullable = false, length = 32)),
            @AttributeOverride(name = "accountId", column = @Column(name = "account_id", nullable = false)) })
    public BasicAuthAccountsId getId() {
        return this.id;
    }
 
    public void setId(BasicAuthAccountsId id) {
        this.id = id;
    }
 
    @OneToOne(fetch = FetchType.LAZY)
    @PrimaryKeyJoinColumn
    @NotNull
    public UserAccounts getUserAccounts() {
        return this.userAccounts;
    }
 
    public void setUserAccounts(UserAccounts userAccounts) {
        this.userAccounts = userAccounts;
    }
 
/**
 * BasicAuthAccountsId generated by hbm2java
 */
@Embeddable
public class BasicAuthAccountsId implements java.io.Serializable {
 
    private String realmTypeId;
    private String realmQualifier;
    private long accountId;
 
    public BasicAuthAccountsId() {
    }
 
    public BasicAuthAccountsId(String realmTypeId, String realmQualifier, long accountId) {
        this.realmTypeId = realmTypeId;
        this.realmQualifier = realmQualifier;
        this.accountId = accountId;
    }
 
/**
 * UserAccounts generated by hbm2java
 */
@Entity
@Table(name = "user_accounts", schema = "ebusdevt", catalog = "ebusiness_dev")
public class UserAccounts implements java.io.Serializable {
 
    private UserAccountsId id;
    private Realms realms;
    private UserDetails userDetails;
    private Integer accessLevel;
    private String status;
    private boolean isEdge;
    private String role;
    private boolean chargesAccess;
    private Date createdTimestamp;
    private Date lastStatusChangeTimestamp;
    private BasicAuthAccounts basicAuthAccounts;
    private Set<Sessions> sessionses = new HashSet<Sessions>(0);
    private Set<AccountGroups> accountGroupses = new HashSet<AccountGroups>(0);
    private Set<UserPrivileges> userPrivilegeses = new HashSet<UserPrivileges>(0);
 
    public UserAccounts() {
    }
 
    public UserAccounts(UserAccountsId id, Realms realms, UserDetails userDetails, String status,
            boolean isEdge, boolean chargesAccess) {
        this.id = id;
        this.realms = realms;
        this.userDetails = userDetails;
        this.status = status;
        this.isEdge = isEdge;
        this.chargesAccess = chargesAccess;
    }
 
 
    @EmbeddedId
    @AttributeOverrides( {
            @AttributeOverride(name = "realmTypeId", column = @Column(name = "realm_type_id", nullable = false, length = 32)),
            @AttributeOverride(name = "realmQualifier", column = @Column(name = "realm_qualifier", nullable = false, length = 32)),
            @AttributeOverride(name = "accountId", column = @Column(name = "account_id", nullable = false)) })
    @NotNull
    public UserAccountsId getId() {
        return this.id;
    }
 
    public void setId(UserAccountsId id) {
        this.id = id;
    }
 
 
 
    @OneToOne(fetch = FetchType.LAZY, mappedBy = "userAccounts")
    public BasicAuthAccounts getBasicAuthAccounts() {
        return this.basicAuthAccounts;
    }
 
    public void setBasicAuthAccounts(BasicAuthAccounts basicAuthAccounts) {
        this.basicAuthAccounts = basicAuthAccounts;
    }
 
/**
 * UserAccountsId generated by hbm2java
 */
@Embeddable
public class UserAccountsId implements java.io.Serializable {
 
    private String realmTypeId;
    private String realmQualifier;
    private long accountId;
 
    public UserAccountsId() {
    }
 
    public UserAccountsId(String realmTypeId, String realmQualifier, long accountId) {
        this.realmTypeId = realmTypeId;
        this.realmQualifier = realmQualifier;
        this.accountId = accountId;
    }
 
    @Column(name = "realm_type_id", nullable = false, length = 32)
    @NotNull
    @Length(max = 32)
    public String getRealmTypeId() {
        return this.realmTypeId;
    }
 
    public void setRealmTypeId(String realmTypeId) {
        this.realmTypeId = realmTypeId;
    }
 
    @Column(name = "realm_qualifier", nullable = false, length = 32)
    @NotNull
    @Length(max = 32)
    public String getRealmQualifier() {
        return this.realmQualifier;
    }
 
    public void setRealmQualifier(String realmQualifier) {
        this.realmQualifier = realmQualifier;
    }
 
    @Column(name = "account_id", nullable = false)
    public long getAccountId() {
        return this.accountId;
    }
 
    public void setAccountId(long accountId) {
        this.accountId = accountId;
    }

Any clues what to do here? This is pretty important that i get this to work. Cannot find any substantial solution on the net, some say to create an ID class which hibernate has done, and some say not to have a one-to-one relationship.

Please help me!!

[Shane Lee]

just to follow up on looking/researching online:

From what i can see i have two tables basic_auth_accounts and user_accounts that use the same composite keys realmTypeId, realmQualifier and accountId.
Both entities have embeddable classes with these columns and one-to-one relationships.

I used hibernate tools to generate these entities from the DB schema which i cant change!

Im wondering if i used the same embeddable class for both entities, as in rename BasicAuthAccountsId to a more generic name, remove UserAccountsId and for both entities use the same @EmbeddedId class?