productbean.java

电信的网厅的整站代码

package com.doone.fj1w.common;

import java.util.HashMap;
import java.util.Map;

import com.doone.data.DataRow;
import com.doone.data.DataTable;

public class ProductBean extends Td_Product {
	private static Map _product = new HashMap();

	private ProductBean() {
		super();
	}

	public ProductBean(DataRow dr) {
		super(dr);
	}

	public static DataTable getChildProducts(long upProductId) {
		if (upProductId < 0 )
			throw new NullPointerException("父产品编号不能小于０。");

		DataTable ret = (DataTable) _product.get(Long.toString(upProductId));

		if (ret == null) {
			// 本地没有相应Cache，从服务器获取该配置。
			ret = Td_Product.getChildProducts(upProductId);
			
			if ( ret != null )
				_product.put(Long.toString(upProductId), ret);
		}

		return ret;
	}
}