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Java EE web development, where do I start and what skills do I need? [closed]
...n learn JPA at Jakarta EE tutorial part VIII. Also, EJB3 was much improved based on lessons learnt from Spring. See also When is it necessary or convenient to use Spring or EJB3 or all of them together?
Does Java have MVC? What about JSP? Can MVC and JSP be together? JavaBeans?
You can, but that'...
How can I find all of the distinct file extensions in a folder hierarchy?
...folder):
for f in *.*; do printf "%s\n" "${f##*.}"; done | sort -u
I've based this upon this forum post, credit should go there.
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Interface Builder: What are the UIView's Layout iOS 6/7 Deltas for?
...the different styles, you can change the way Interface Builder presents it based on the OS it would be running on. This is contained within the File Inspector->Interface Builder Document (1st tab on the right bar), as so:
Does this exist if I like to code my interface by hand?
Not directly, b...
Proper use of the IDisposable interface
...ollector to eventually come along and free it? What if there's an open database connection? Surely we don't want that connection sitting open, waiting for the GC to finalize the object.
If the user has called Dispose() (meaning they no longer plan to use the object) why not get rid of those wastefu...
Views vs Components in Ember.js
...your point. But I would think of a component as a black box, behaving only based on the data it gets passed in. And yes depending on what it does this could become a mess very quickly. A dedicated controller would make absolute sense, and a way it could work would be if components could become logic...
How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
...r my credit card numbers
or password and storing that in their
own database?
Yes, though the damage someone can do with S3 seems to be limited to draining your account.
How secret do they need to be? Are
these applications that use the secret
keys storing it somehow?
At some point, y...
Data Modeling with Kafka? Topics and Partitions
...whelming Zookeeper, it is better to partition by user id, and have user id based consumers subscribe to each partition if?
– Ravindranath Akila
Sep 19 '13 at 19:41
2
...
Can you create nested WITH clauses for Common Table Expressions?
...s a recursive query:
WITH y
AS
(
SELECT x, y, z
FROM MyTable
WHERE [base_condition]
UNION ALL
SELECT x, y, z
FROM MyTable M
INNER JOIN y ON M.[some_other_condition] = y.[some_other_condition]
)
SELECT *
FROM y
You may not need this functionality. I've done the following just to o...
Removing duplicate objects with Underscore for Javascript
...
If you're looking to remove duplicates based on an id you could do something like this:
var res = [
{id: 1, content: 'heeey'},
{id: 2, content: 'woah'},
{id: 1, content:'foo'},
{id: 1, content: 'heeey'},
];
var uniques = _.map(_.groupBy(res,function(doc)...
Is there a job scheduler library for node.js? [closed]
...
agenda is based on node-cron with a persisten layer (mongo). so the answer above is better.
– drdrej
Feb 6 '14 at 14:57
...