annotate which field can be serialize?

[jiqimaogou]

hi
I just want to parcel just on field of my class, how can I do?

or
auto ignore unparcel field.

I am using dbflow, and every bean class extends basemodel, but basemodel has a modeladapter, it can not be parceled.

[johncarl81]

Simply mark what fields you don't want included in the Parcelable with @Transient. This goes for base classes as well.

[jiqimaogou]

thank you.

but baseModel is in other library which can not be modified, how can I exclude super class field in subClass?

[jiqimaogou]

but baseModel is in other library which can not be modified, how can I exclude super class field in subClass?

[johncarl81]

The best solution currently is to write a ParcelConverter by hand (See http://parceler.org/#custom_serialization). We have a similar issue identified here: #58, with a fix in the works here: #62. Do these describe your problem accurately and do you have any input on the proposed PR?

[jiqimaogou]

super class(which is can not be modified)

public abstract class BaseModel implements Model {
    private ModelAdapter mModelAdapter;

    public ModelAdapter getModelAdapter() {
        return mModelAdapter;
    }
}

subclass

public class Model extends BaseModel {
     public string name;
}

How can I do exclude BaseModel mModelAdapter field.

[johncarl81]

Annotate Model:

@Parcel(converter = ModelConverter.class)
public class Model extends BaseModel {
     public String name;
}

And define ModelConverter:

public static class ModelConverter implements ParcelConverter<Model>{

    @Override
    public void toParcel(Model input, android.os.Parcel parcel) {
        parcel.writeString(input.name);
    }

    @Override
    public Model fromParcel(android.os.Parcel parcel) {
        Model model = new Model();
        model.name = parcel.readString();
        return model;
    }
}

(Until #62 is finished)

[bryant1410]

I think a better approach is to make the model inherit this class instead of BaseModel:

@ParcelClass(value = ModelAdapter.class, annotation = @Parcel(converter = ModelAdapterConverter.class))
public abstract class ParcelableBaseModel extends BaseModel {

}

And having this:

public class ModelAdapterConverter implements ParcelConverter<ModelAdapter> {
    @Override
    public void toParcel(ModelAdapter input, Parcel parcel) {

    }

    @Override
    public ModelAdapter fromParcel(Parcel parcel) {
        return null;
    }
}

Otherwise, it would be nice if BaseModel could have it field as transient.

[Alireza-Farahani]

@bryant1410 I'm getting "an enclosing instance that contains blahblah.ModelAdapterConverter is required" error in an auto generated dbflow class in. Error lines are marked with a "//HERE" comment in front of them.

public class ModelAdapter$$Parcelable
    implements Parcelable, ParcelWrapper<ModelAdapter>
{

    private ModelAdapter modelAdapter$$0;
    @SuppressWarnings("UnusedDeclaration")
    public final static ModelAdapter$$Parcelable.Creator$$0 CREATOR = new ModelAdapter$$Parcelable.Creator$$0();

    public ModelAdapter$$Parcelable(android.os.Parcel parcel$$0) {
        modelAdapter$$0 = new com.shaya.poinila.android.data.database.PoinilaDataBase.ModelAdapterConverter().fromParcel(parcel$$0); // HERE!
    }
    public ModelAdapter$$Parcelable(ModelAdapter modelAdapter$$1) {
        modelAdapter$$0 = modelAdapter$$1;
    }
    @Override
    public void writeToParcel(android.os.Parcel parcel$$1, int flags) {
        new com.shaya.poinila.android.data.database.PoinilaDataBase.ModelAdapterConverter().toParcel(modelAdapter$$0, parcel$$1);  // HERE!
    }

    @Override
    public int describeContents() {
        return  0;
    }

    @Override
    public ModelAdapter getParcel() {
        return modelAdapter$$0;
    }

    public final static class Creator$$0 implements Creator<ModelAdapter$$Parcelable> {
        @Override
        public ModelAdapter$$Parcelable createFromParcel(android.os.Parcel parcel$$2) {
            return new ModelAdapter$$Parcelable(parcel$$2);
        }

        @Override
        public ModelAdapter$$Parcelable[] newArray(int size) {
            return new ModelAdapter$$Parcelable[size] ;
        }
    }
}

Any idea how to resolve this?

[bryant1410]

DBFlow 3.0.0-beta1 BaseModel is now Parcelable. You can just use this version.

[Alireza-Farahani]

@bryant1410 Tnx but I'm not very sure about using a beta version.
Did your way really work for you? That seems far better than writing lots of boilerplate parcelConverter code

[bryant1410]

@khafan I haven't used it. The other option that comes to my mind is to fork the last stable version and make BaseModel Parcelable. Just apply this change