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Get generic type of java.util.List
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If those are actually fields of a certain class, then you can get them with a little help of reflection:
package test;
import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.util.ArrayList;
import java.util.List;
public class Test {
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How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...er!THANKS! So Hibernate takes care of cnocurrency by "optimistic locking". Then there is no need to use "synchronized" methods at all for resolve any data-access concurrecy?? Use "synchronized" methods only if the data are not stored in the database?? ..when DO you use them??
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Permission denied for relation
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Connect to the right database first, then run:
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO jerry;
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How to determine if a list of polygon points are in clockwise order?
...g is that some common contexts, like HTML5 canvas, use an inverted Y-axis. Then the rule has to be flipped: if the area is negative, the curve is clockwise.
– LarsH
Oct 11 '13 at 20:49
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Rails 4 image-path, image-url and asset-url no longer work in SCSS files
...hopefully help:
If you place images in your app/assets/images directory, then you should be able to call the image directly with no prefix in the path. ie. image_url('logo.png')
Depending on where you use the asset will depend on the method. If you are using it as a background-image: property, the...
Is non-blocking I/O really faster than multi-threaded blocking I/O? How?
...n idealized single processor core (ignoring modern hardware optimizations) then performing this task "asynchronously" wouldn't really perform any differently than performing it with two independently managed threads, or with just one lone process -- the difference might come down to thread context s...
Using reCAPTCHA on localhost
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When your localhost isn't named "localhost" then it's not working.
– Hexodus
Feb 19 '16 at 7:06
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Is there a way to @Autowire a bean that requires constructor arguments?
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@Eric well then you either need XML or Java based configuration
– Sean Patrick Floyd
Jul 19 '11 at 18:13
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C++ project organisation (with gtest, cmake and doxygen)
...gest adding another hierarchy and use the tree above for each sub-project. Then things get tricky, because you need to decide if sub-components search and configure their dependencies or if you do that in the top-level. This should be decided on a case-by-case basis.
Doxygen: After you managed to g...
When should I use GET or POST method? What's the difference between them?
...d']), but let's say that you want to change the article-id. The new id may then be present in the request body ($_POST['id']). OK, perhaps that's not the best example, but I hope it illustrates the difference between the two.
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