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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
...equire casting due to Scala's type system.
Also in Java people don't typically make immutable objects which I recommend you do for messaging. Consequently its very easy in Java to accidentally do something using Akka that will not scale (using mutable objects for messages, relying on weird closure...
How to kill a process running on particular port in Linux?
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This fuser 8080/tcp will print you PID of process bound on that port.
And this fuser -k 8080/tcp will kill that process.
Works on Linux only. More universal is use of lsof -i4 (or 6 for IPv6).
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Is it possible to set the equivalent of a src attribute of an img tag in CSS?
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without proper browser support I don't see this as a valid answer, sorry.
– emachine
Aug 30 '13 at 17:37
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show 21 more c...
How to create EditText with rounded corners? [closed]
...gt;
<!-- res/drawable/rounded_edittext.xml -->
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
android:padding="10dp">
<solid android:color="#FFFFFF" />
<corners
android:bottomRightRadius="15dp"
andro...
What's faster, SELECT DISTINCT or GROUP BY in MySQL?
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You can add ORDER BY NULL to the GROUP BY to avoid the sort.
– Ariel
Aug 20 '14 at 3:21
Sti...
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I had problems while "archiving" my app. I think there are invalid profiles because of iPhone Update to 5.1 and XCode update to 4.2.2.
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Sending Email in Android using JavaMail API without using the default/built-in app
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when i called setcontent it overwrote my body content. am i doing anything wrong. i want to add attachment with other textual body content
– Calvin
Aug 19 '15 at 12:50
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how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
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Try to do an UPDATE. If it doesn't modify any row that means it didn't exist, so do an insert. Obviously, you do this inside a transaction.
You can of course wrap this in a function if you don't want to put the extra code on the client side. You also need a loop for the very rare race con...
Python non-greedy regexes
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This is called "non greedy" qualifier
– Bruno Duyé
Jun 4 '18 at 17:31
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Replace a newline in TSQL
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@Slint Yes, good point. Practically speaking, to use this from client code you should add a column name. Though it is true that a lot of times you can get away with using .columns[0] instead.
– RBarryYoung
May 27 '1...