flush

Will Hibernate flush my updated persistent object when calling session.close() with FlushMode.AUTO?

由 走远了吗. 提交于 2019-11-26 14:25:34
问题 If FlushMode.AUTO is set, will Hibernate flush my updated persistent object when I call session.close()? I know that session.close() does not normally flush the session but I'm not sure how FlushMode.AUTO affects this. From the Docs: FlushMode.AUTO The Session is sometimes flushed before query execution in order to ensure that queries never return stale state. This is the default flush mode. Does this mean I can rely on Hibernate to verify my changes are flushed sometimes before my session is

How can I output data before I end the response?

由 爱⌒轻易说出口 提交于 2019-11-26 14:06:38
问题 Here is my snippet I tested it in Chrome 11, and Firefox 4: var http = require('http'); http.createServer(function(request, response){ // Write Headers response.writeHead(200); // Write Hello World! response.write("Hello World!"); // End Response after 5 seconds setTimeout(function(){ response.end(); }, 5000); }).listen(8000); As you can see I timed out the response.end() so I can test if response.write is outputted before the response.end . In my experience though it is not. Is there a way

PHP buffer ob_flush() vs. flush()

由 北慕城南 提交于 2019-11-26 12:17:08
What's the difference between ob_flush() and flush() and why must I call both? The ob_flush() reference says: This function will send the contents of the output buffer (if any). The flush() reference says: Flushes the write buffers of PHP and whatever backend PHP is using (CGI, a web server, etc). However, it continues to say: [it] may not be able to override the buffering scheme of your web server… So, seems to me that I could just use ob_flush() all of the time. However, I get strange results when I do that. Could someone explain in simple terms what's going on here? mario ob_flush sends an

PHP Flush that works… even in Nginx

由 让人想犯罪 __ 提交于 2019-11-26 12:03:21
问题 Is it possible to echo each time the loop is executed? For example: foreach(range(1,9) as $n){ echo $n.\"\\n\"; sleep(1); } Instead of printing everything when the loop is finished, I\'d like to see it printing each result per time. 回答1: The easiest way to eliminate nginx's buffering is by emitting a header: header('X-Accel-Buffering: no'); This eliminates both proxy_buffering and (if you have nginx >= 1.5.6), fastcgi_buffering . The fastcgi bit is crucial if you're using php-fpm. The header

PHP - Flushing While Loop Data with Ajax

由 我是研究僧i 提交于 2019-11-26 09:51:53
问题 Using PHP , I would like to make a while loop that reads a large file and sends the current line number when requested. Using Ajax , I\'d like to get the current line count and print it out onto a page. Using html buttons , I\'d like to be able to click and activate or terminate a javascript thread that runs only ONCE and calls the ajax method . I have given it a shot but for some reason, nothing prints unless I comment out the echo str_repeat(\' \',1024*64); function and when it\'s commented

NHibernate ISession Flush: Where and when to use it, and why?

由 老子叫甜甜 提交于 2019-11-26 09:13:25
One of the things that get me thoroughly confused is the use of session.Flush ,in conjunction with session.Commit , and session.Close . Sometimes session.Close works, e.g., it commits all the changes that I need. I know I need to use commit when I have a transaction, or a unit of work with several creates/updates/deletes, so that I can choose to rollback if an error occurs. But sometimes I really get stymied by the logic behind session.Flush . I have seen examples where you have a session.SaveOrUpdate() followed by a flush, but when I remove Flush it works fine anyway. Sometimes I run into

Does reading from stdin flush stdout?

由 最后都变了- 提交于 2019-11-26 09:03:54
问题 stdout is line-buffered when connected to a terminal, but I remember reading somewhere that reading (at least from stdin) will automatically flush stdout. All C implementations that I have used have done this, but I can\'t find it in the standard now. It does make sense that it works that way, otherwise code like this: printf(\"Type some input: \"); fgets(line, sizeof line, stdin); would need an extra fflush(stdout); So is stdout guaranteed to be flushed here? EDIT: As several replies have

endl and flushing the buffer

由 人走茶凉 提交于 2019-11-26 08:59:55
问题 In the C++ primer book, in chapter (1), it mentions the following: endl is a special value, called a manipulator, that when written to an output stream has the effect of writing a newline to the output and flushing the buffer associated with that device . By flushing the buffer, we ensure that the user will see the output written to the stream immediately. What is meant by \"flushing the buffer\" here? 回答1: Output is generally buffered before it's written to the intended device. That way, when

Force flushing of output to a file while bash script is still running

由 一笑奈何 提交于 2019-11-26 05:24:33
问题 I have a small script, which is called daily by crontab using the following command: /homedir/MyScript &> some_log.log The problem with this method is that some_log.log is only created after MyScript finishes. I would like to flush the output of the program into the file while it\'s running so I could do things like tail -f some_log.log and keep track of the progress, etc. 回答1: bash itself will never actually write any output to your log file. Instead, the commands it invokes as part of the

NHibernate ISession Flush: Where and when to use it, and why?

由 人盡茶涼 提交于 2019-11-26 02:03:21
问题 One of the things that get me thoroughly confused is the use of session.Flush ,in conjunction with session.Commit , and session.Close . Sometimes session.Close works, e.g., it commits all the changes that I need. I know I need to use commit when I have a transaction, or a unit of work with several creates/updates/deletes, so that I can choose to rollback if an error occurs. But sometimes I really get stymied by the logic behind session.Flush . I have seen examples where you have a session
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