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How to use MDC with thread pools?
In our software we extensively use MDC to track things like session IDs and user names for web requests. This works fine while running in the original thread. However, there's a lot of things that need to be processed in the background. For that we use the java.concurrent.ThreadPoolExecutor and j...
Proper use of beginBackgroundTaskWithExpirationHandler
... its allotted time has expired.
Mine tend look something like this:
- (void) doUpdate
{
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
[self beginBackgroundUpdateTask];
NSURLResponse * response = nil;
NSError * error = nil;
...
How do I do a not equal in Django queryset filtering?
...;> from django.db.models import Q
>>> Entry.objects.filter(~Q(id = 3))
[<Entry: Entry object>, <Entry: Entry object>, <Entry: Entry object>, ...]
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Set Additional Data to highcharts series
... this.point.myData + '</b>';
}
}
Full example here: https://jsfiddle.net/burwelldesigns/jeoL5y7s/
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Python Requests and persistent sessions
... to understand how to maintain such a session. Additionally, I want to provide a class which keeps the session maintained over different runs of a script (with a cache file). This means a proper "login" is only performed when required (timout or no session exists in cache). Also it supports proxy se...
How can I plot with 2 different y-axes?
...pied material that was on the R wiki at http://rwiki.sciviews.org/doku.php?id=tips:graphics-base:2yaxes, link now broken: also available from the wayback machine
Two different y axes on the same plot
(some material originally by Daniel Rajdl 2006/03/31 15:26)
Please note that there are very few s...
Where does Java's String constant pool live, the heap or the stack?
...aded in the VM, the string constants will get copied to the heap, to a VM-wide string pool (in the permgen, as Stephen C said), since equal string literals in different classes have to be the same String object (by the JLS).
– Paŭlo Ebermann
Feb 7 '11 at 14:24...
What is the claims in ASP .NET Identity
Can somebody please explain, what the claim mechanism means in new ASP.NET Identity Core?
3 Answers
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Can I write a CSS selector selecting elements NOT having a certain class or attribute?
...rom layout completely. You can often get around this by using visibility: hidden instead which will allow visible descendants to show, but the hidden elements will still affect layout as they originally did. In short, just be careful.
...
Alarm 闹钟扩展 · App Inventor 2 中文网
...12)
- AlarmIntent 中的 FlagNewTask 属性未正确设置。从Android 10开始，此标志必须设置为 true 才能从闹钟启动新活动- AlarmIntent 中的 FlagNewTask 属性默认值更改为 true- 方法 CreateAlarm... 中的 WakeUp 参数未正确评估
2.2 (2021-07-...