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What do REFRESH and MERGE mean in terms of databases?
...t means that all associated entities are refreshed.
MERGE means something complex that approximates "save" but is more like "push this detached entity back into managed status and save its state changes"; the cascading means that all associated entities get pushed back the same way, and the managed...
Possible to access the index in a Hash each loop?
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Concatenate strings in Less
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Thanks @Paulpro! I was having an issue with VS Web Compiler add-on, where it was changing my background-image url, and I wasn't too sure how to do concatenation :)
– hatsrumandcode
Dec 22 '15 at 16:18
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Show and hide a View with a slide up/down animation
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With the new animation API that was introduced in Android 3.0 (Honeycomb) it is very simple to create such animations.
Sliding a View down by a distance:
view.animate().translationY(distance);
You can later slide the View back to its original position like this:
view.animate().translatio...
How to convert the background to transparent? [closed]
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I would recommend this (just found via search):
http://lunapic.com/editor/?action=load
Browse for image to upload OR enter URL of the file (below the image)
http://i.stack.imgur.com/2gQWg.png
Edit menu/Transparent (last one)
Click on...
Assigning default value while creating migration file
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Unittest setUp/tearDown for several tests
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Postgresql: Conditionally unique constraint
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Collections.emptyList() returns a List?
...String>emptyList());
}
Now when you're doing straight assignment, the compiler can figure out the generic type parameters for you. It's called type inference. For example, if you did this:
public Person(String name) {
List<String> emptyList = Collections.emptyList();
this(name, emp...
Git: copy all files in a directory from another branch
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What about if I wanted to retain commit messages for the files copied over?
– totels
Apr 19 '11 at 11:43
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