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How to view the SQL queries issued by JPA?
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Logging options are provider-specific. You need to know which JPA implementation do you use.
Hibernate (see here):
<property name = "hibernate.show_sql" value = "true" />
EclipseLink (see here):
<property name="eclipselink.logging.level" value="FINE"/>
OpenJPA (see here):
<...
Does .NET provide an easy way convert bytes to KB, MB, GB, etc.?
...ue, int decimalPlaces = 1)
{
if (decimalPlaces < 0) { throw new ArgumentOutOfRangeException("decimalPlaces"); }
if (value < 0) { return "-" + SizeSuffix(-value); }
if (value == 0) { return string.Format("{0:n" + decimalPlaces + "} bytes", 0); }
// mag is 0 for bytes, 1 for KB...
Parallelize Bash script with maximum number of processes
...Depending on what you want to do xargs also can help (here: converting documents with pdf2ps):
cpus=$( ls -d /sys/devices/system/cpu/cpu[[:digit:]]* | wc -w )
find . -name \*.pdf | xargs --max-args=1 --max-procs=$cpus pdf2ps
From the docs:
--max-procs=max-procs
-P max-procs
Run up to ma...
How to reset radiobuttons in jQuery so that none is checked
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In versions of jQuery before 1.6 use:
$('input[name="correctAnswer"]').attr('checked', false);
In versions of jQuery after 1.6 you should use:
$('input[name="correctAnswer"]').prop('checked', false);
but if you are using 1.6.1+ you can use the first form (see note 2 below...
How do I remove a file from the FileList
...les onto a div and of course fetching the dataTransfer object, which gives me the FileList .
14 Answers
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PHP passing $_GET in linux command prompt
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Typically, for passing arguments to a command line script, you will use either argv global variable or getopt:
// bash command:
// php -e myscript.php hello
echo $argv[1]; // prints hello
// bash command:
// php -e myscript.php -f=world
$opts = g...
How to get the caret column (not pixels) position in a textarea, in characters, from the start?
...rea.selectionStart, but for IE that doesn't work, so you will have to do something like this:
function getCaret(node) {
if (node.selectionStart) {
return node.selectionStart;
} else if (!document.selection) {
return 0;
}
var c = "\001",
sel = document.selection.createRange(),...
Representing Monetary Values in Java [closed]
I understand that BigDecimal is recommended best practice for representing monetary values in Java. What do you use? Is there a better library that you prefer to use instead?
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How to vertically center a div for all browsers?
... with CSS. I don't want tables or JavaScript, but only pure CSS. I found some solutions, but all of them are missing Internet Explorer 6 support.
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What's the @ in front of a string in C#?
...terpreted as an escape sequence is ignored.
So "C:\\Users\\Rich" is the same as @"C:\Users\Rich"
There is one exception: an escape sequence is needed for the double quote. To escape a double quote, you need to put two double quotes in a row. For instance, @"""" evaluates to ".
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