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package com.octo.android.robospice.spicelist;

import android.widget.ImageView;

/**
 * Describes the behavior of a "List Item View" that contains an ImageView that is used to display a
 * given piece of data. The image will be download from the network and will be managed in an
 * optimal way via RoboSpice.
 * @param 
 *            the type of the data displayed in this {@link SpiceListItemView}. This class has to
 *            respect the general contrat of {@link Object#equals(Object)} and
 *            {@link Object#hashCode()}.
 * @author sni
 */
public interface SpiceListItemView {

    /**
     * @return the object that is displayed by this list item.
     */
    T getData();

    /**
     * @param imageIndex
     *            the index of the image in case there are multiple bitmap used to represent every
     *            piece of data.
     * @return the imageView that is displaying the drawable associated to this view's data. This
     *         ImageView will be update by the SpiceManager.
     */
    ImageView getImageView(int imageIndex);

    /**
     * @return the number of image views used to represent each piece of data. Usually 1.
     */
    int getImageViewCount();

    /**
     * Updates the view with given data. Overrides of this method should not deal with images. Only
     * update other fields here.
     * @param data
     */
    void update(T data);
}