<pre><code>class TestSpeedRetrieval(webapp.RequestHandler):
"""
Test retrieval times of various important records in the BigTable database
"""
def get(self):
commandValidated = True
beginTime = time()
itemList = Subscriber.all().fetch(1000)
for item in itemList:
pass
endTime = time()
self.response.out.write("<br/>Subscribers count=" + str(len(itemList)) +
" Duration=" + duration(beginTime,endTime))
</code></pre>
<p>如何将上述内容转换为传递类名称的函数?
在上面的示例中,Subscriber(在Subscriber.all().fetch语句中)是一个类名,这就是使用Python在Google BigTable中定义数据表的方式。</p>
<p>我想这样做:</p>
<pre><code> TestRetrievalOfClass(Subscriber)
or TestRetrievalOfClass("Subscriber")
</code></pre>
<p>谢谢,
尼尔·沃尔特斯</p>