Composite Index error 328

Hi , when i try to use this entity as shown below:


package persistence.jpa.models;

import javax.jdo.annotations.Indices;
import javax.persistence.*;
import java.io.Serializable;
import java.sql.Date;
import java.util.Objects;


@Entity

@Table(name = "usrlist", schema = "posts")

@NamedQueries(
        {
                @NamedQuery(name = "UsrListEntity.clearAllIds" , query = "UPDATE UsrlistEntity usrlist SET usrlist.dyId = -1"),
        }
)

@Indices(
        {
                @javax.jdo.annotations.Index(members = {"id","pwd","access"})
        }
)
public class UsrlistEntity implements Serializable {


    private static final long serialVersionUID = -4472890635861972890L;

    private int id;
    private int dyId;
    private long pwd;
    private String usrName;
    private Integer mail;
    private int access;
    private short programType;
    private Date regDate;
    private Date regEnd;
    private Date lastLogin;
    private String lastIp;
    private int flags;
    private String name;
    private String surname;
    private String job;
    private String phoneNumber;
    private Long contactHash;
    private String kadrosu;
    private String buroGruplama;
    private Long groupsHash;

    @Id
    @Column(name = "id")
    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    @Basic
    @Column(name = "dy_id")
    public int getDyId() {
        return dyId;
    }

    public void setDyId(int dyId) {
        this.dyId = dyId;
    }

    @Basic
    @Column(name = "pwd")
    public long getPwd() {
        return pwd;
    }

    public void setPwd(long pwd) {
        this.pwd = pwd;
    }

    @Basic
    @Column(name = "usr_name")
    public String getUsrName() {
        return usrName;
    }

    public void setUsrName(String usrName) {
        this.usrName = usrName;
    }

    @Basic
    @Column(name = "mail")
    public Integer getMail() {
        return mail;
    }

    public void setMail(Integer mail) {
        this.mail = mail;
    }

    @Basic
    @Column(name = "access")
    public int getAccess() {
        return access;
    }

    public void setAccess(int access) {
        this.access = access;
    }

    @Basic
    @Column(name = "program_type")
    public short getProgramType() {
        return programType;
    }

    public void setProgramType(short programType) {
        this.programType = programType;
    }

    @Basic
    @Column(name = "reg_date")
    public Date getRegDate() {
        return regDate;
    }

    public void setRegDate(Date regDate) {
        this.regDate = regDate;
    }

    @Basic
    @Column(name = "reg_end")
    public Date getRegEnd() {
        return regEnd;
    }

    public void setRegEnd(Date regEnd) {
        this.regEnd = regEnd;
    }

    @Basic
    @Column(name = "last_login")
    public Date getLastLogin() {
        return lastLogin;
    }

    public void setLastLogin(Date lastLogin) {
        this.lastLogin = lastLogin;
    }

    @Basic
    @Column(name = "last_ip")
    public String getLastIp() {
        return lastIp;
    }

    public void setLastIp(String lastIp) {
        this.lastIp = lastIp;
    }

    @Basic
    @Column(name = "flags")
    public int getFlags() {
        return flags;
    }

    public void setFlags(int flags) {
        this.flags = flags;
    }

    @Basic
    @Column(name = "name")
    public String getName() {
        return name;
    }

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

    @Basic
    @Column(name = "surname")
    public String getSurname() {
        return surname;
    }

    public void setSurname(String surname) {
        this.surname = surname;
    }

    @Basic
    @Column(name = "job")
    public String getJob() {
        return job;
    }

    public void setJob(String job) {
        this.job = job;
    }

    @Basic
    @Column(name = "phoneNumber")
    public String getPhoneNumber() {
        return phoneNumber;
    }

    public void setPhoneNumber(String phoneNumber) {
        this.phoneNumber = phoneNumber;
    }

    @Basic
    @Column(name = "contactHash")
    public Long getContactHash() {
        return contactHash;
    }

    public void setContactHash(Long contactHash) {
        this.contactHash = contactHash;
    }

    @Basic
    @Column(name = "kadrosu")
    public String getKadrosu() {
        return kadrosu;
    }

    public void setKadrosu(String kadrosu) {
        this.kadrosu = kadrosu;
    }

    @Basic
    @Column(name = "buroGruplama")
    public String getBuroGruplama() {
        return buroGruplama;
    }

    public void setBuroGruplama(String buroGruplama) {
        this.buroGruplama = buroGruplama;
    }

    @Basic
    @Column(name = "groupsHash")
    public Long getGroupsHash() {
        return groupsHash;
    }

    public void setGroupsHash(Long groupsHash) {
        this.groupsHash = groupsHash;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        UsrlistEntity that = (UsrlistEntity) o;
        return id == that.id &&
                dyId == that.dyId &&
                pwd == that.pwd &&
                access == that.access &&
                programType == that.programType &&
                flags == that.flags &&
                Objects.equals(usrName, that.usrName) &&
                Objects.equals(mail, that.mail) &&
                Objects.equals(regDate, that.regDate) &&
                Objects.equals(regEnd, that.regEnd) &&
                Objects.equals(lastLogin, that.lastLogin) &&
                Objects.equals(lastIp, that.lastIp) &&
                Objects.equals(name, that.name) &&
                Objects.equals(surname, that.surname) &&
                Objects.equals(job, that.job) &&
                Objects.equals(phoneNumber, that.phoneNumber) &&
                Objects.equals(contactHash, that.contactHash) &&
                Objects.equals(kadrosu, that.kadrosu) &&
                Objects.equals(buroGruplama, that.buroGruplama) &&
                Objects.equals(groupsHash, that.groupsHash);
    }

    @Override
    public int hashCode() {

        return Objects.hash(id, dyId, pwd, usrName, mail, access, programType, regDate, regEnd, lastLogin, lastIp, flags, name, surname, job, phoneNumber, contactHash, kadrosu, buroGruplama, groupsHash);
    }
}

On the second class.I try to use this entity like shown below;

@Override
public Triplet<Integer, Long, Long> login(int gid, long id, long password, String ipAddr) {
    try {
        final UsrlistEntity usrlistEntity = entityManager.find(UsrlistEntity.class, gid); // << Exception thrown here
        if (usrlistEntity == null) {
            return null;
        }
        if (usrlistEntity.getPwd() == password) {
            return new Triplet<Integer, Long, Long>(1, usrlistEntity.getContactHash(), usrlistEntity.getGroupsHash());
        }
        return null;
    } catch (PersistenceException e) {
        e.printStackTrace();
    }
    return null;
}

[ObjectDB 2.7.5_01] javax.persistence.PersistenceException
Invalid index path 'id' in type persistence.jpa.models.UsrlistEntity (error 328)
    at com.objectdb.jpa.EMImpl.find(EMImpl.java:603)
    at com.objectdb.jpa.EMImpl.find(EMImpl.java:518)
    at persistence.jpa.PersistenceJPALogin.login(PersistenceJPALogin.java:33)
    at server.dbcommandhandlers.core.LoginDBHandler.execute(LoginDBHandler.java:128)
    at server.db.BasicDBUnit.run(BasicDBUnit.java:206)
    at java.lang.Thread.run(Thread.java:748)
Caused by: com.objectdb.o.UserException: Invalid index path 'id' in type persistence.jpa.models.UsrlistEntity
    at com.objectdb.o.MSG.a(MSG.java:64)
    at com.objectdb.o.IXN.i(IXN.java:458)
    at com.objectdb.o.IXN.a(IXN.java:277)
    at com.objectdb.o.IXN.<init>(IXN.java:176)
    at com.objectdb.o.UTY.A(UTY.java:760)
    at com.objectdb.o.TYS.h(TYS.java:791)
    at com.objectdb.o.TYS.e(TYS.java:641)
    at com.objectdb.o.TYS.ZJ(TYS.java:593)
    at com.objectdb.o.TYM.Y(TYM.java:554)
    at com.objectdb.o.TYM.j(TYM.java:489)
    at com.objectdb.o.TYM.R(TYM.java:823)
    at com.objectdb.o.OBC.am(OBC.java:715)
    at com.objectdb.jpa.EMImpl.find(EMImpl.java:581)
    ... 5 more

How to solve this issue ?

> Invalid index path 'id' in type persistence.jpa.models.UsrlistEntity (error 328)

The id field cannot be part of a composite index, as it is defined as the primary key. The primary key is automatically indexed and cannot be added to user defined indexes.

on mysql , i can make primary key as composite index.

I can give secondary index.

is  it impossible for objectdb ?

Yes, a composite index that includes primary key fields is currently not supported by ObjectDB.

But it is rarely needed because every index always includes the primary key.

For example the structure of a composite index on {"pwd","access"}, without "id" is:

pwd1, access1 => (UsrlistEntity, id1)
pwd2, access2 => (UsrlistEntity, id2)
  :
  :

so actually the id field is included in the index, and queries on pwd, access and id can be executed by using the index only with no need to access the data.  Adding a primary key field to the index (on the left side) will usually decrease performance due to a larger index space. It may be supported by ObjectDB in the future as it may be useful for some range queries.