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Init method in Spring Controller (annotation version)
... @PostConstruct since autowiring/injection by setter was not yet done. The order is constructor, @PostConstruct then autowired setters. I solved it with @EventListener annotation which wil run last and at the "same" time for all beans. The example shows implementation of InitializingBean aswell.
I ...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
... Add column with default value
2) THEN: Remove default value
add_column :orders, :items, :integer, null: false, default: 0
change_column :orders, :items, :integer, default: nil
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When should I choose Vector in Scala?
...ector[A], the only thing I am asserting is that my data has a well defined order and a finite length. Thus, the assertions are weaker with Vector, and this leads to its greater flexibility.
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Spring MVC @PathVariable with dot (.) is getting truncated
...isteredSuffixPatternMatch property of RequestMappingHandlerMapping bean in order to keep suffixPattern recognition activated but limited to registered extension.
Here you define only json and xml extensions :
<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.method.ann...
Why must wait() always be in synchronized block
We all know that in order to invoke Object.wait() , this call must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason for making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the mon...
How do I convert an enum to a list in C#? [duplicate]
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Awesome. Just realized that the ordering of the list can be specified by the 'value' of the enums. Ex: enum Foo { A = 1, B = 2, D = 4, C = 3, } => Once this is ran thru the GetValue and Cast, then the order is A, B, C, D. Fantastic!
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How to organize large R programs?
...ii) reload it into your workspace? Is there a way to call library(...) in order to reload a package that's already loaded (step iii above)? Don't you have to kill your workspace, restart R then reload your library/package in order to see if it's right?
– Steve Lianoglou
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ggplot with 2 y axes on each side and different scales
...e.g. given the strict restrictions imposed by scientific journals etc., in order to bring across the message quickly. Hence, adding a second y axis is being done anyway, and ggplot should, in my opinion, help in doing so.
– Stingery
Feb 11 '16 at 15:33
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Capistrano error tar: This does not look like a tar archive
...ites it out to the standard output" so Capistrano redirects that to tar in order to uncompress the archive immediately into your new release directory.
(Why Capistrano chose this instead of git checkout defeats me.)
tar fails because it's receiving nothing d:
I can think of two possible solutions/...
Postgresql SELECT if string contains
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shouldn't be the order of aaaa and tag_name reversed? i mean that you should put a column name after where
– user151496
May 11 '15 at 15:10
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