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path: root/app/src/main/java/SubredditDatabase/SubredditViewModel.java
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package SubredditDatabase;

import android.app.Application;
import android.arch.lifecycle.AndroidViewModel;
import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.ViewModel;
import android.arch.lifecycle.ViewModelProvider;
import android.support.annotation.NonNull;

public class SubredditViewModel extends AndroidViewModel {
    private SubredditRepository mSubredditRepository;
    private LiveData<SubredditData> mSubredditLiveData;

    SubredditViewModel(Application application, String id, boolean isId) {
        super(application);
        mSubredditRepository = new SubredditRepository(application, id, isId);
        mSubredditLiveData = mSubredditRepository.getSubredditLiveData();
    }

    public LiveData<SubredditData> getSubredditLiveData() {
        return mSubredditLiveData;
    }

    public void insert(SubredditData subredditData) {
        mSubredditRepository.insert(subredditData);
    }

    public static class Factory extends ViewModelProvider.NewInstanceFactory {

        @NonNull
        private final Application mApplication;

        private final String value;
        private final boolean isId;

        public Factory(@NonNull Application application, String value, boolean isId) {
            mApplication = application;
            this.value = value;
            this.isId = isId;
        }

        @Override
        public <T extends ViewModel> T create(Class<T> modelClass) {
            //noinspection unchecked
            return (T) new SubredditViewModel(mApplication, value, isId);
        }
    }
}