/*
* Ext GWT - Ext for GWT
* Copyright(c) 2007-2009, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.extjs.gxt.ui.client.widget.grid;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.store.ListStore;
/**
* Renderer for aggregation rows in a grid.
*
* @param <M> the model type
*/
public interface AggregationRenderer<M extends ModelData> {
/**
* Returns the rendered HTML or Widget for the given cell.
*
* @param value the calculated value if a summary type has been specified
* @param colIndex the column index
* @param grid the containing grid
* @param store the list store
* @return the rendered data either as a string or widget
*/
public Object render(Number value, int colIndex, Grid<M> grid, ListStore<M> store);
}