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Spring - @Transactional - What happens in background?
I want to know what actually happens when you annotate a method with @Transactional ?
Of course, I know that Spring will wrap that method in a Transaction.
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Is an index needed for a primary key in SQLite?
...base to optimize
queries. As a result, there often no advantage (but significant
overhead) in creating an index on a set of columns that are already
collectively subject to a UNIQUE or PRIMARY KEY constraint.
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How to set breakpoints on future shared libraries with a command flag
...answer that someone gave me on IRC:
(gdb) apropos pending
actions -- Specify the actions to be taken at a tracepoint
set breakpoint -- Breakpoint specific settings
set breakpoint pending -- Set debugger's behavior regarding pending breakpoints
show breakpoint -- Breakpoint specific settings
show b...
How can I find the length of a number?
...ake its absolute value and adjust the sign afterwards.
Update for ES2015
Now that Math.log10 is a thing, you can simply write
const len = Math.ceil(Math.log10(num + 1));
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Setting Icon for wpf application (VS 08)
...mments when running from the VS debugger the generic icon is still shown.
If you want to have your icon even when you're pressing F5, you can add in the Main Window:
<Window x:Class="myClass"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.micro...
How to create a new java.io.File in memory?
...ned in the comments of Andreas’ answer) could also be mentioned, because if you cant for some reason write to the hard-drive, then that could be a way around it.
– FableBlaze
Jan 17 at 12:19
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Idiomatic way to convert an InputStream to a String in Scala
...e why you want to get lines and then glue them all back together, though. If you can assume the stream's nonblocking, you could just use .available, read the whole thing into a byte array, and create a string from that directly.
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Disable messages upon loading a package
... How do I do that? Furthermore, I'd prefer to do it without having to modify ROCR at all, so that future users of this script don't have to do that either.
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What is the “main file” property when doing bower init?
...reprocessor files like CoffeeScript should be compiled.Do not include
minified files.Filenames should not be versioned (Bad:
package.1.1.0.js; Good: package.js).
I think it's more for the package management, and build tools like Grunt and Brunch. For example, Bootstrap's bower.json looks like ...
What is memory fragmentation?
...---
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Now, allocate some of it (5 allocations):
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|aaaabbccccccddeeee |
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Now, free the first four allocations but not the fifth:
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