cachable.java

public class Product implements Cachable{
    
    public Product(String type, String key){
        mType = type;
        mKey = key;
    }

    public String cacheId() {
        return mKey;
    }

    public String cacheType() {
        return mType;
    }

    private String mName;
    private String mDescription;
    private String mImageUrl;
    private String mProductUrl;
    
    public Cachable fromCache(String type, String key, HashMap<String, String> cache) {
        mType = type;
        mKey = key;
        mName = cache.get("name");
        mDescription = cache.get("desc");
        mImageUrl = cache.get("image_url");
        mProductUrl = cache.get("url");
        return this;
    }

    public HashMap<String, String> toCache() {
        HashMap<String, String> map = new HashMap<String, String>();
        map.put("name", mName);
        map.put("desc",mDescription);
        map.put("image_url", mImageUrl);
        map.put("url",mProductUrl);
        return map;
    }
    
}