Objectbox-java: ID is higher or equal to internal ID sequence

[santalu]

Hi,
First thanks for the great library even though its still missing some major(at least for me) features like auto generetad id, string id, auto relation etc.

I tried to manually set id for each of my entities since there's no id coming from source. Then i get this exception java.lang.IllegalArgumentException: ID is higher or equal to internal ID sequence: 2 (vs. 2). Use ID 0 (zero) to insert new entities.

        int id = 0;
        for (VehicleType vehicleType : vehicleTypes) {
            vehicleType.setId(id++);
        }

I tried to use random but it didn't work either

       Random random = new Random();
        for (VehicleType vehicleType : vehicleTypes) {
            vehicleType.setId(random.nextInt());
        }

Can you tell me how can i achieve this?

[FabianTerhorst]

You have to set assignable at the id annotation to true.
@Id(assignable = true)

[greenrobot]

What Fabian said.

[santalu]

Hi, thanks for the comments.
I did what you suggested but it seems whatever id i set for any entity the library ignore previously assigned id and set it to 0 itself.

This is my entity class

@Entity
public class VehicleType {

    @Id(assignable = true)
    private long id;
    private String code;
    private String name;
    private int maxPassenger;
    private int sellingCountLimit;
    private int orderno;
    @SerializedName("vehManufacturerDTOs") @Relation(idProperty = "id")
    private List<Brand> brands;
    //selection parameters
    private int count;
    /** Used to resolve relations */
    @Internal
    @Generated(hash = 1307364262)
    transient BoxStore __boxStore;

    @Generated(hash = 1213098646)
    public VehicleType(long id, String code, String name, int maxPassenger,
            int sellingCountLimit, int orderno, int count) {
        this.id = id;
        this.code = code;
        this.name = name;
        this.maxPassenger = maxPassenger;
        this.sellingCountLimit = sellingCountLimit;
        this.orderno = orderno;
        this.count = count;
    }

    @Generated(hash = 1440934529)
    public VehicleType() {
    }

    public String getCode() {
        return code;
    }

    public String getName() {
        return name;
    }

    public int getMaxPassenger() {
        return maxPassenger;
    }

    public int getSellingCountLimit() {
        return sellingCountLimit;
    }

    public int getOrderno() {
        return orderno;
    }

    public int getCount() {
        return count;
    }

    public void setCode(String code) {
        this.code = code;
    }

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

    public void setMaxPassenger(int maxPassenger) {
        this.maxPassenger = maxPassenger;
    }

    public void setSellingCountLimit(int sellingCountLimit) {
        this.sellingCountLimit = sellingCountLimit;
    }

    public void setOrderno(int orderno) {
        this.orderno = orderno;
    }

    public void setCount(int count) {
        this.count = count;
    }

    public long getId() {
        return id;
    }

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

    @Override public String toString() {
        return "VehicleType{" +
                "id=" + id +
                ", code='" + code + '\'' +
                ", name='" + name + '\'' +
                '}';
    }

    /**
     * To-many relationship, resolved on first access (and after reset).
     * Changes to to-many relations are not persisted, make changes to the target entity.
     */
    @Generated(hash = 2118679597)
    public List<Brand> getBrands() {
        if (brands == null) {
            final BoxStore boxStore = this.__boxStore;
            if (boxStore == null) {
                throw new DbDetachedException();
            }
            Box<Brand> box = boxStore.boxFor(Brand.class);
            int targetTypeId = boxStore.getEntityTypeIdOrThrow(Brand.class);
            List<Brand> brandsNew = box.getBacklinkEntities(targetTypeId,
                    Brand_.code, id);
            synchronized (this) {
                if (brands == null) {
                    brands = brandsNew;
                }
            }
        }
        return brands;
    }

    /** Resets a to-many relationship, making the next get call to query for a fresh result. */
    @Generated(hash = 326440771)
    public synchronized void resetBrands() {
        brands = null;
    }

    /**
     * Removes entity from its object box. Entity must attached to an entity context.
     */
    @Generated(hash = 1980709258)
    public void remove() {
        if (__boxStore == null) {
            throw new DbDetachedException();
        }
        __boxStore.boxFor(VehicleType.class).remove(this);
    }

    /**
     * Puts the entity in its object box.
     * Entity must attached to an entity context.
     */
    @Generated(hash = 776532669)
    public void put() {
        if (__boxStore == null) {
            throw new DbDetachedException();
        }
        __boxStore.boxFor(VehicleType.class).put(this);
    }
}

        int i = 1;
        for (VehicleType vehicleType : vehicleTypes) {
            vehicleType.setId(i++);
        }

        vehicleTypeBox.removeAll();
        vehicleTypeBox.put(vehicleTypes);

And another interesting thing is when i try to reset database before adding anyting i get this io.objectbox.exception.DbDetachedException: Cannot perform this action on a detached entity. Ensure it was loaded by ObjectBox, or attach it manually.

        vehicleTypeBox.removeAll();
        int i = 1;
        for (VehicleType vehicleType : vehicleTypes) {
            vehicleType.setId(i++);
            vehicleType.put();
        }