Spark RDD API扩展开发(2):自定义RDD � 过往记忆



Spark RDD API扩展开发(2):自定义RDD � 过往记忆

　　在本博客的《Spark RDD API扩展开发(1)》文章中我介绍了如何在现有的RDD中添加自定义的函数。本文将介绍如何自定义一个RDD类，假如我们想对没见商品进行打折，我们想用Action操作来实现这个操作，下面我将定义IteblogDiscountRDD类来计算商品的打折，步骤如下：


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