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Utility code for use with GWT and Mvp4g.

There is a newer version: 5.8.4

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 *              C E D A R
 *          S O L U T I O N S       "Software done right."
 *           S O F T W A R E
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * Copyright (c) 2013 Kenneth J. Pronovici.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the Apache License, Version 2.0.
 * See LICENSE for more information about the licensing terms.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 * Author   : Kenneth J. Pronovici 
 * Language : Java 6
 * Project  : Common Java Functionality
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
package com.cedarsolutions.client.gwt.datasource;

import com.google.gwt.view.client.AsyncDataProvider;
import com.google.gwt.view.client.HasData;

/**
 * Asynchronous data provider used by BackendDataSource.
 * @param  Type of the backend data
 * @param  Type of the search criteria
 * @author Kenneth J. Pronovici 
 */
public class BackendDataProvider extends AsyncDataProvider {

    /** Underlying data source. */
    private BackendDataSource dataSource;

    /** Create a back-end provider associated with a data source. */
    public BackendDataProvider(BackendDataSource dataSource) {
        this.dataSource = dataSource;
    }

    /** Called when a display changes its range of interest. */
    @Override
    protected void onRangeChanged(HasData display) {
        this.dataSource.updateDisplay(display);
    }

    /** Get the underlying data source. */
    public BackendDataSource getDataSource() {
        return this.dataSource;
    }

}