Filter data in recycler view without storing in Collection

Java SDK
1 
private LiveQuery mQuery;
    private QueryEnumerator enumerator;

    public AllRecipeAdapter(Activity activity, ClickListner clickListner, LiveQuery query) {
        this.mActivity = activity;
        this.mClickListner = clickListner;
        this.mQuery = query;
        this.aListDocIds = new ArrayList<>();
        refeshData();
    }

    private void refeshData() {
        mQuery.addChangeListener(new LiveQuery.ChangeListener() {
            @Override
            public void changed(final LiveQuery.ChangeEvent event) {
                ((Activity) mActivity).runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        enumerator = event.getRows();
                        notifyDataSetChanged();
                    }
                });
            }
        });
        mQuery.start();
        notifyDataSetChanged();
        Log.e("", "refeshData: ");
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View mView = LayoutInflater.from(parent.getContext()).inflate(R.layout.row_recipes, parent, false);
        return new ViewHolder(mView);
    }

    @Override
    public int getItemCount() {
        return enumerator != null ? enumerator.getCount() : 0;
    }

    public Document getItem(int position) {
        return enumerator != null ? enumerator.getRow(position).getDocument() : null;
    }

    public void invalidate() {
        if (mQuery != null)
            mQuery.stop();
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {

        if (holder instanceof ViewHolder) {
            Document document = (Document) getItem(position);
//            Log.e(TAG, "onBindViewHolder: " + document.getId());
            ImageView imgFeaturedRecipe = ((ViewHolder) holder).imgFeaturedRecipe;
            String strDocId = (String) document.getProperty(_ID);
            aListDocIds.add(strDocId);
            String strRecipeName = (String) document.getProperty(RECIPENAME);
            String strCookingTime = (String) document.getProperty(RECIPECOOKINGTIME);
            String imgId = (String) document.getProperty(IMAGEID);
            ((ViewHolder) holder).txtRecipeName.setText(strRecipeName);
            ((ViewHolder) holder).txtRecipeTime.setText(strCookingTime);
            ImageLoader.getInstance().setDisplayImage(mActivity, mActivity.getString(R.string.imageUrl) + imgId, imgFeaturedRecipe);
        }
    }

// Get Query pass in Adapter constructor.

private Query getQuery() {
    return CBLSyncManager.getInstance(this).getListsView().createQuery();
}

/**
 * Database View
 */
public View getListsView() {
    View view = mDatabase.getView(VIEW_RECIPELIST);
    if (view.getMap() == null) {
        Mapper mapper = new Mapper() {
            public void map(Map<String, Object> document, Emitter emitter) {
                if (document.get(_ID).toString().contains(RCP)) {
                    String docID = (String) document.get(ID);
                    String strRecipeName = (String) document.get(RECIPENAME);
                    String strCookingTime = (String) document.get(RECIPECOOKINGTIME);
                    String[] temp = new String[]{docID, strRecipeName, strCookingTime};
                    emitter.emit(temp, null);

                }

            }
        };
        view.setMap(mapper, "1.0");
    }
    return view;
}
2

Hi @hiteshdhamshaniya.wv,

Do you have a question or are you sharing something interesting? In either case, it looks like you might want to post this on the Java category: Java SDK - Couchbase Forums