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Hibernate: “Field 'id' doesn't have a default value”
...on the database even after an execution of SchemaUpdate.
If the error actually seems to lack a sensible explanation, try recreating the database (or at least creating a new one) and scaffolding it with SchemaExport.
share
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IntelliJ show JavaDocs tooltip on mouse over
...T: For IntelliJ Ultimate 2017.2, aka IntelliJ IDEA 2017.2.3, there are actually two options:
In Editor > General > Other (section) > Show quick documentation on mouse move - delay 500 ms
Select this check box to show quick documentation for the symbol at caret. The quick documentation p...
Is there a link to the “latest” jQuery library on Google APIs? [duplicate]
...
Also FYI using latest WILL destroy your site eventually when the changes begin to cause conflicts. You should target libraries specifically to avoid this unless you are really on top of all your sites
– Kai Qing
Feb 28 '13 at 23:54
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How to call a method after bean initialization is complete?
I have a use case where I need to call a (non-static) method in the bean only-once at the ApplicationContext load up. Is it ok, if I use MethodInvokingFactoryBean for this? Or we have a some better solution?
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Double Iteration in List Comprehension
...f_words
I like to think of list comprehension as stretching code horizontally.
Try breaking it up into:
# List Comprehension
[word for sentence in text for word in sentence]
Example:
>>> text = (("Hi", "Steve!"), ("What's", "up?"))
>>> [word for sentence in text for word in...
Can you issue pull requests from the command line on GitHub?
... Didn't know about Hub, it is available via homebrew: brew install hub This seems like the correct answer for mac users.
– wfbarksdale
Dec 3 '12 at 22:58
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Java, List only subdirectories from a directory, not files
...ussion here:
How to retrieve a list of directories QUICKLY in Java?
Basically:
If you control the file structure, I would try to avoid getting into that situation.
In Java NIO.2, you can use the directories function to return an iterator to allow for greater scaling. The directory stream class i...
How can I read large text files in Python, line by line, without loading it into memory?
...ines in reverse order is not as easy to do efficiently unfortunately. Generally you would want to read from the end of the file in sensible sized chunks (kilobytes to megabytes say) and split on newline characters ( or whatever the line ending char is on your platform)
– John L...
How to serialize Joda DateTime with Jackson JSON processor?
... The answer did work for me. But it would require this annotation on all the fields. Is there some global configuration for this which works with Jackson?
– Taher
Jun 12 '15 at 2:36
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Check whether a string is not null and not empty
...ils
I like to use Apache commons-lang for these kinds of things, and especially the StringUtils utility class:
import org.apache.commons.lang.StringUtils;
if (StringUtils.isNotBlank(str)) {
...
}
if (StringUtils.isBlank(str)) {
...
}
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