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Why is Maven downloading the maven-metadata.xml every time?
...e:
http://books.sonatype.com/nexus-book/reference/maven-sect-single-group.html
http://maven.apache.org/repository-management.html
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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...the Hibernate docs:
http://docs.jboss.org/hibernate/core/3.3/reference/en/html/best-practices.html
Specifically:
Prefer bidirectional associations:
Unidirectional associations are more difficult to query. In a large
application, almost all associations
must be navigable in both dire...
How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...ogram as the variable
sys.path.
http://docs.python.org/2/using/cmdline.html#envvar-PYTHONPATH
What you're looking for is PATH.
export PATH=$PATH:/home/randy/lib/python
However, to run your python script as a program, you also need to set a shebang for Python in the first line. Something li...
Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
...uage Spec for the gory details:http://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html
(Initial answer assumed a weaker memory model, as I was not sure the JLS guaranteed volatile was sufficient. Answer edited to reflect comment from assylias, pointing out the Java model is stronger - happens...
Should I always use a parallel stream when possible?
... This post gives further details about the NQ model: gee.cs.oswego.edu/dl/html/StreamParallelGuidance.html
– Pino
Apr 1 '15 at 8:25
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Foreign keys in mongo?
... Mongoid or MongoMapper.
http://mongoid.org/docs/relations/referenced/1-n.html
In a NoSQL database like MongoDB there are not 'tables' but collections. Documents are grouped inside Collections. You can have any kind of document – with any kind of data – in a single collection. Basically, in a ...
What's the difference between an exclusive lock and a shared lock?
...quest read locks.
More on that : http://www.gnu.org/software/libc/manual/html_node/File-Locks.html
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How to call an external command?
...use shlex.split for an easy way to do this docs.python.org/2/library/shlex.html#shlex.split
– Daniel F
Sep 20 '18 at 18:05
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How to properly add cross-site request forgery (CSRF) token using PHP
... token. The problem I'm having is that the token is only showing up in the HTML "value" some of the time. The rest of the time, the value is empty. Here is the code I am using on the AJAX form:
...
Why is setTimeout(fn, 0) sometimes useful?
...the JSFiddle illustrating these examples: http://jsfiddle.net/C2YBE/31/ :
HTML code:
<table border=1>
<tr><td><button id='do'>Do long calc - bad status!</button></td>
<td><div id='status'>Not Calculating yet.</div></td>
&l...