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Jackson enum Serializing and DeSerializer
...al;
private static Map<String, DeviceScheduleFormat> namesMap = new HashMap<String, DeviceScheduleFormat>(3);
static {
namesMap.put("weekday", Weekday);
namesMap.put("even-odd", EvenOdd);
namesMap.put("interval", Interval);
}
@JsonCreator
pu...
When to use symbols instead of strings in Ruby?
...nstead of instantiate it again. This is less expensive than initializing a new string every time.
You can get a list all symbols that are already instantiated with the command Symbol.all_symbols:
symbols_count = Symbol.all_symbols.count # all_symbols is an array with all
...
How to choose the id generation strategy when using JPA and Hibernate
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f10041938%2fhow-to-choose-the-id-generation-strategy-when-using-jpa-and-hibernate%23new-answer', 'question_page');
}
);
...
Getting “CHECKOUT can only be performed on a version resource” when trying to commit using Eclipse s
... one version of the SVN client then trying to manage it in Eclipse using a newer version.
– David
Aug 19 '14 at 13:40
22
...
How can jQuery deferred be used?
jQuery 1.5 brings the new Deferred object and the attached methods .when , .Deferred and ._Deferred .
11 Answers
...
scale Image in an UIButton to AspectFit?
... |
edited Mar 1 '16 at 0:51
Pang
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answered J...
How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
...ype.ALL,
orphanRemoval = true
)
private List<Comment> comments = new ArrayList<>();
CascadeType.ALL
The cascade attribute tells the JPA provider to pass the entity state transition from the parent Post entity to all PostComment entities contained in the comments collection.
So, if y...
Generate random 5 characters string
... Brad ChristieBrad Christie
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6
...
Cannot use ref or out parameter in lambda expressions
...of captured variables is that changes to the variable are also visible outside the lambda expression. For example the following prints 42
void Example2(int p1) {
Action del = () => { p1 = 42; }
del();
Console.WriteLine(p1);
}
These two properties produce a certain set of effects which f...
What is a “feature flag”?
...unctionality of your application off, via configuration, without deploying new code.
Feature flags play a key part in CI scheme where features are constantly being deployed but not necessarily "released" into production.
More info here:
http://code.flickr.com/blog/2009/12/02/flipping-out/
-- E...