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Spring MVC: How to perform validation?

...out that: I saw it validates a class. Does the class have to be filled manually with the values from the user input, and then passed to the validator? ...
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mysql create user if not exists

...alhost' IDENTIFIED BY 'password'; Note that the 5.7.6 method doesn't actually grant any permissions. If you aren't using a version which has this capability (something below 5.7.6), you can do the following: GRANT ALL ON `database`.* TO 'user'@'localhost' IDENTIFIED BY 'password'; This will ...
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SQL-Server: The backup set holds a backup of a database other than the existing

... file on to it"... yes, that solves it. (But why didn't I get this problem all the other times I did the same thing? And didn't we only start doing that pre-create in the first place as a workaround for some other inexplicable error message? :]) – Reg Edit May ...
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How to send email to multiple recipients using python smtplib?

... This really works, I spent a lot of time trying multiple variants. import smtplib from email.mime.text import MIMEText s = smtplib.SMTP('smtp.uk.xensource.com') s.set_debuglevel(1) msg = MIMEText("""body""") sender = 'me@example.c...
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How do I implement basic “Long Polling”?

... It's simpler than I initially thought.. Basically you have a page that does nothing, until the data you want to send is available (say, a new message arrives). Here is a really basic example, which sends a simple string after 2-10 seconds. 1 in 3 ch...
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When and why would you seal a class?

... features, so that the original object cannot be "impersonated". More generally, I recently exchanged with a person at Microsoft, who told me they tried to limit the inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. The sealed...
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Connection pooling options with JDBC: DBCP vs C3P0

... Would really love get a troubleshoot using BoneCP as a Tomcat Datasource. The main problem I had with this was that it required BoneCP Classes in tomcat's lib dir, as well as the log4j and google classes. Doing this made the connecti...
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iPhone UIButton - image position

...pt. Any idea why we need to set both left and right edge inset? Theoretically, if I move the title to left and the image to right, that would be enough. Why do I need to set both left and right? – PokerIncome.com Jul 11 '13 at 18:23 ...
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jQuery Multiple ID selectors

... This answer will definitely work but ideally any plugin logic should apply to all the matched elements. – ShankarSangoli Aug 16 '11 at 14:12 ...
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How to get the host name of the current machine as defined in the Ansible hosts file?

... The necessary variable is inventory_hostname. - name: Install this only for local dev machine pip: name=pyramid when: inventory_hostname == "local" It is somewhat hidden in the documentation at the bottom of this section. ...