Generic serializable and parcelable collection container with auto cast support

gistfile1.txt

package com.serve.platform.service.support;

import java.io.Serializable;
import java.util.Arrays;
import java.util.LinkedList;

import android.os.Parcel;
import android.os.Parcelable;

public class Extras implements Parcelable {
	private static final int PARCELABLE = 0;
	private static final int SERIALIZABLE = 1;
	private LinkedList<Item> mItems = new LinkedList<Item>();

	public static Extras createExtras(Item... items) {
		return new Extras(items);
	}
	
	private Extras(Item... items) {
		mItems = new LinkedList<Item>(Arrays.asList(items));
	}
	
	public Extras(Parcel in) {
		do {
			int type = in.readInt();
			switch(type) {
			case PARCELABLE:
				mItems.add((Item) in.readParcelable(null));
				break;
			case SERIALIZABLE:
				mItems.add((Item) in.readSerializable());
				break;
			}
		} while (in.dataPosition() < in.dataSize());
	}

	public <T> T get(int position) {
		Item item = mItems.get(position);
		return cast(item.mItem);
	}
	
    @SuppressWarnings("unchecked")
	private static <TSource, TTarget> TTarget cast(TSource toCast){
        return (TTarget) toCast;
    }
    
    public int size() {
    	return mItems.size();
    }
	
	public static class Item {
		public Object mItem;
		public static Item create(Object item) {
			return new Item(item);
		}
		
		private Item(Object item) {
			mItem = item;
		}
	}

	@Override
	public int describeContents() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public void writeToParcel(Parcel dest, int flags) {
		for (Item item : mItems) {
			if (item.mItem instanceof Parcelable) {
				dest.writeInt(PARCELABLE);
				dest.writeParcelable((Parcelable) item.mItem, 0);
			} else if (item.mItem instanceof Serializable) {
				dest.writeInt(SERIALIZABLE);
				dest.writeSerializable((Serializable) item.mItem);
			}
		}
	}
	
    public static final Parcelable.Creator<Extras> CREATOR = new Parcelable.Creator<Extras>() {
        @Override
        public Extras createFromParcel(Parcel in) {
            return new Extras(in);
        }

        @Override
        public Extras[] newArray(int size) {
            return new Extras[size];
        }
    };
    
    public static class ResultPayload extends Extras{}
}