Simple Recycler Adapter with generics

SimpleAdapter.java

import android.support.annotation.LayoutRes;
import android.support.annotation.Nullable;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import java.util.List;

/**
 * Created on 24.04.2017
 * Project RecyclerBind
 *
 * @author Aleks Sander
 */

public abstract class SimpleAdapter<T> extends RecyclerView.Adapter<SimpleHolder<T>> {

    private final List<T> items;

    @LayoutRes
    private final int layoutId;

    public SimpleAdapter(@Nullable List<T> items, @LayoutRes int layoutId) {
        this.items = items;
        this.layoutId = layoutId;
    }

    @Override
    public SimpleHolder<T> onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(layoutId, parent, false);
        return createHolder(itemView);
    }

    @Override
    public void onBindViewHolder(SimpleHolder<T> holder, int position) {
        if (items != null) {
            holder.bindModel(items.get(position));
        }
    }

    @Override
    public int getItemCount() {
        return items == null ? 0 : items.size();
    }

    public abstract SimpleHolder<T> createHolder(View itemView);
}

SimpleHolder.java

import android.support.v7.widget.RecyclerView;
import android.view.View;

/**
 * Created on 24.04.2017
 * Project RecyclerBind
 *
 * @author Aleks Sander
 */

public abstract class SimpleHolder<T> extends RecyclerView.ViewHolder {
    public SimpleHolder(View itemView) {
        super(itemView);
    }

    public abstract void bindModel(T t);
}