discoverd | Archived -- see https : //github.com/flynn/flynn | Telnet library
kandi X-RAY | discoverd Summary
kandi X-RAY | discoverd Summary
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QUESTION
I accidentally discoverd that I can persist changes on a object, even if I dont write them inside the transaction. I wounder how this happend, cuz in theory, I should'nt be able to change the age value in the database, if I dont write the changes inside the transaction. PS: If I remove the last 2 lines, it does nothing to the db, as expected.
...ANSWER
Answered 2021-Mar-19 at 18:58You are in the EXTENDED JPA mode. So the Entity Manager is not bound to the transaction.
Changes are preserved in the Persistence Context. And as soon you commit a transaction the changes are flushed and committed.
QUESTION
I have an application scanning BluetoothLE devices (temperature). The application is whitelisted in the list for battery optimizations and uses a PARTIAL_WAKE_LOCK.
It works like a charm with a Zebra TC25 Android 7.1.2 using a thread scanning BLE devices every 10 minutes independently of the android device state.
However the same application does not work at all with a samsung galaxy S10+ Android 10 when the screen is off (it works when screen is on). I know that the simple thread method will not work because of doze mode. So I also tried these ways :
setExactAndAllowWhileIdle(TJAlarmManager.JavaClass.RTC_WAKEUP, time,PendingIntent) and firebase cloud messaging sending high priority message. Alarm method has limitations but fcm has not as far as I know.
These 2 ways also failed. The fcm message is received and the alarm triggers, both run the BLEDiscover procedure below to run a bluetooth scan, but no bluetooth device are discovered.
Here is what happens in two situations. In the fisrt one, the screen is on, it always works :
...ANSWER
Answered 2020-Dec-08 at 20:20Android 10+ requires ACCESS_BACKGROUND_LOCATION permission for Bluetooth scanning in the background.
If you're using Delphi 10.4.1, check the Access background location checkbox in the Application > Uses Permissions section of the Project Options. For earlier versions of Delphi you may need to modify AndroidManifest.template.xml to add the permission:
QUESTION
I have six html tables each with there own theme. Each table has two rows. Each row has to have a total sum. The sum of each table has to be placed in a another table (the table_tot). The code I discoverd does nearly the trick, but it sums all the row of all the tables at the end. In the code you can see that the second row in the table_tot is the sum of alle the rows of the two tables. I've tried to gave the td another class name, but that was not the solution. I hope someone has. My knowledge of javascript or jquery is very little.
...ANSWER
Answered 2020-May-21 at 19:54The sums of the 2nd row of table_tot
are the sums of all table rows because totals
isn't [0,0]
when the sums of table_2
are calculated, but [31,38]
. The easiest way to solve this is to have a 2nd totals
variable:
QUESTION
I have a problem with firestore and Next.JS. I would like to have a list with the ul and li tag of y firetsore document.
I have install firestore and my doc is read by the consol log as you can see in the picture.
But as you can see in the same image nothing appear in my web page.
This is the code of my page :
...ANSWER
Answered 2020-May-10 at 18:35You're changing the state incorrectly.
Try doing this.setState({ contents }), instead of this.setState = ...
QUESTION
Just discoverd jq and I want to change the value of a key and print both the changed and original key value.
Original sample file ...ANSWER
Answered 2020-Apr-23 at 06:40Ask and ye shall receive:
- adapting your query -
QUESTION
I had a Eclipse IDE for Enterprise Java Developers 2019-12 (4.14.0) on Win 10, along with JBoss Tools 4.14.0 Final installed form the marketplace. This morning I've got an update notification in eclipse and I have accepted it without properly reading what it was about. I turned out to be an major update to version 2020.03 (4.15.0). After the update every thing seemed OK on the first sight, however when I tried to open an xhtml file it did not open?! In the eclipse log file I have found the following:
...ANSWER
Answered 2020-Apr-16 at 16:26Looks like it's been fixed for their next release atop 2020-03: https://issues.redhat.com/browse/JBIDE-27138. You'll have to stay on 2019-12 until it's released.
QUESTION
I am trying to include citations APA style in my latex document which is written in dutch. However, the citations appear as
author e.a. (year)
instead of
author et al. (year)
The first is probably some translation, but in dutch is is very common to still use et al. How do I change the citations in text to et al.?
...ANSWER
Answered 2020-Mar-24 at 15:13Luckily you use the biblatex package, this makes it easy to adjust the string:
QUESTION
I'm trying to find the first 5 runners who ran under 1km
, but if there are less than 5 runners who satisfy that condition, then increment km
by 1 until the LIMIT
of 5 is satisfied.
The only caveat is that if 2 or more results are discoverd upon incrementing km
, the result with the higher score
should be returned, even if the other result had a lower km_run
.
The final result set should be ordered by score.
Runners
ANSWER
Answered 2019-May-06 at 13:30First get all the runners who have rank 5 or better, where the rank is based on the truncated km_run
. Then get the 5 of those with the best score.
In SQL:
QUESTION
I'm writing a web application for managing and viewing streams from ONVIF ip-cameras.
It's written in nodejs. The idea is to run a child process in node and pipe output to node, then send the buffer to client and render it on canvas. I have a working solution for sending data to client and rendering it on canvas using websockets but it only works on one of my cameras.
I own 2 IP cameras and both of them have rtsp server.
One of them(let's name it camX) kind of works with this ffmpeg command (sometimes it just stops, maybe due to packet losses):
ANSWER
Answered 2019-Feb-22 at 11:56There are multiple things here:
Nonmatching transport in server reply
- this is most likely not due to unicast (because unicast is the normal way - sending the stream to a single client). The error most likely comes from the fact, that you are actually forcing RTP over TCP with the-rtsp_transport tcp
flag. You have several options here - check the cameras which are not working, check if they are set to only UDP and set them to TCP, or even better - do not force the transport and let ffmpeg negotiate with the camera. Maybe this solves the issue at once.- Regarding OpenRTSP - The
moov
atom is usually written at the end of the file when all the needed data is known, and since you are piping it, it actually breaks the logic here. I would assume OpenRTSP actually never emits themoov
since it never ends the stream and thus ffmpeg never gets it. I would advise to simply try and fix the RTSP transport as stated above.
QUESTION
I'm new to Xamarin cross-platform app development, and I'm trying to implement on Android version of my app an external NFC tag reading.
When a tag is scanned, I would like my application to open and read the text inside the tag and finally perform some specific actions based on what was read.
I've this implementation on MainActivity.cs, but it doesn't work because it seems that I can't get the intent:
...ANSWER
Answered 2018-Nov-16 at 12:40You are registering the foreground dispatch for the ActionNdefDiscovered
intent. However, this intent filter also requires a specific data type (to be present on the tag and to be registered for the intent). If that's what you want, you need to add that data type (MIME type or URI) to the intent filter (variable tagDetected
).
If, instead, you want to just listen for all tags, you want to use the ActionTagDiscovered
intent instead. In fact, you can simply skip the intnent filter all together from the call to EnableForegroundDispatch
:
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