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@Basic(optional = false) vs @Column(nullable = false) in JPA
...ipseLink Architecture Committee Member, TopLink Core Technical Lead, JPA 2.0 Expert Group Member) wrote a good answer on this topic so instead of paraphrasing him, I'll quote his answer:
The difference between optional and
nullable is the scope at which they
are evaluated. The definition of
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Setting environment variables for accessing in PHP when using Apache
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Something along the lines:
<VirtualHost hostname:80>
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SetEnv VARIABLE_NAME variable_value
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</VirtualHost>
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Playing .mp3 and .wav in Java?
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120
Java FX has Media and MediaPlayer classes which will play mp3 files.
Example code:
String bip...
How do I decode a base64 encoded string?
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660
Simple:
byte[] data = Convert.FromBase64String(encodedString);
string decodedString = Encoding....
Using numpad in Vi (Vim) via PuTTY
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+100
The answer is in Numpad in PuTTY while using vi [Cialug]:
In the configuration, go to Terminal->Features and check "Disable
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Using FileSystemWatcher to monitor a directory
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edited Mar 6 '13 at 16:06
Neolisk
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How can I convert a PFX certificate file for use with Apache on a linux server?
...ey.
Update your Apache configuration file with:
<VirtualHost 192.168.0.1:443>
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SSLEngine on
SSLCertificateFile /path/to/domain.cer
SSLCertificateKeyFile /path/to/domain.key
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</VirtualHost>
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Equivalent of “continue” in Ruby
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Yes, it's called next.
for i in 0..5
if i < 2
next
end
puts "Value of local variable is #{i}"
end
This outputs the following:
Value of local variable is 2
Value of local variable is 3
Value of local variable is 4
Value of local variable ...
List files committed for a revision
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phihagphihag
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Get the current file name in gulp.src()
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edited May 22 '14 at 22:40
answered May 22 '14 at 22:34
Vi...